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VA11A EC:Arena Mon 0830h
VJS1 Geodynamic Evolution of the Andean Region - Posters (joint
with IGCP Project 345,ILP,S)
Presiding: R Carlson, Carnegie Inst
0830h VA11A-01 POSTER Flexural Analysis Along the Southern
Andes, Between 12~Lo~K and 58~Lo~KS: *G A
Yanez, J Canuta, A Tassara, A Giavelli
0830h VA11A-02 POSTER Geodynamics of the Central Andes:
Topography and the Interplay of Tectonics
and Climate: *J W Gephart
0830h VA11A-03 POSTER Characteristics of
Intermediate-Depth Intraslab Seismicity in
South America: *E R Engdahl, S Kirby, E A
Okal, E A Bergman
0830h VA11A-04 POSTER Seismicity and Tomographic
Investigation in Northern Chile: *K
Wylegalla, G Asch, F Graeber, A Rudloff
0830h VA11A-05 POSTER The LITHOSCOPE Passive Seismic
Experiment Across Bolivia and Northern
Chile: Preliminary Results of a Lithospheric
Tomography of the Andes at 20~Lo~K S: *C
Dorbath, A Paul
0830h VA11A-06 POSTER Andean Landscape Evolution,
Tectonics, and Magmatism in Northern Chile
(18~Lo~KS): *D Uhlig, I Kohler, H Seyfried,
W Schroeder, G Woerner
0830h VA11A-07 POSTER Neogene Tectonics in the Andes
Through the Evolution of the Interandean
Sedimentary Basins: *A Lavenu, R Marocco, C
Noblet
0830h VA11A-08 POSTER Spatial and Chemical Contrasts in
Miocene to Early Pliocene Ignimbrites as a
Record of Crustal Thickening in the Central
Andes (18~Lo~KS to 25~Lo~KS): *B Coira, S
Mahlberg Kay
0830h VA11A-09 POSTER Ancient Analogy for Andean CVZ Upper
Crust - The Permo-Triassic Northern New
England Fold Belt, Queensland, Australia: *C J
Stephens, R J Holcombe, C R Fielding, D A
Gust, C M Allen
0830h VA11A-10 POSTER Paleomagnetic Constraints on the
Deformation of the Central Andes: *P Roperch,
L Aubry, M de Urreizteita, M Fornari, G
Herail, G Carlier
0830h VA11A-11 POSTER Tertiary Structure of the High Andes
Near 32~Lo~KS: E O Cristallini, *V A Ramos
0830h VA11A-12 POSTER Heterogeneous Mantle Sources of
Mafic Magmas at Sollipulli Volcano in the
Southern Volcanic Zone of the Andes at
39~Lo~KS: *M D Murphy, R S J Sparks
0830h VA11A-13 POSTER The Tapera de Burgos
(43~Lo~K15'S-70~Lo~K45'W) Cauldron
Subsidence Complex: A Mid to Late Oligocene
Subduction Related Epizonal Magmatism,
Chubut, Argentina: *M G Lopez de Luchi, J P
Spikermann
VA11B MUENZ:E050 Mon 1030h
VJS1 Geodynamic Evolution of the Andean Region (joint with IGCP Project 345,
ILP,S)
Presiding: B L Isacks, Cornell University; P Geise,
Freie Universitat Berlin
1030h INTRODUCTION: S Kay,Cornell, DTM
1045h VA11B-01 Characteristics of Subducted Lithosphere
Beneath the Andean Region From Tomographic
Imaging: *E R Engdahl, R D van der Hilst, J
Berrocal, C Fernandes
1100h VA11B-02 Subduction Zone Geometry, Plate Kinematics,
and Seismotectonics of the North
Chile-Argentina Region: *I G Stimpson
1115h VA11B-03 Variations in Interplate Boundary Geometry
Along the Chile Convergent Margin: *K
Kadinsky-Cade, B Isacks
1130h VA11B-04 Anomalous P and S Wave Propagation Through
the Nazca Plate: *G Bock, G Asch, A Rudloff,
K Wylegalla
1145h VA11B-05 Seismic Anisotropy and Mode Conversions at
the PISCO Array in Northern Chile: *R Kind,
G Asch, G Bock
VA11C RAMAL:C 250 Mon 0830h
VJW1 Electromagnetic Effects of Earthquakes and Volcanoes
(joint with S)
Presiding: M Johnston, USGS; M B Gokhberg,
Inst of Physics of the Earth
0830h VA11C-01 New Developments in Low False Alarm Rate
Prediction of Earthquakes From
Electromagnetic Precursors: C W Anderson, *S P
Kingsley, S R Nieder, V A Liperovsky
0845h VA11C-02 Simulation of Ionospheric Disturbances Due
to Gravity Waves From Near-Surface Sources:
*J B Davies, C B Archambeau
0900h VA11C-03 A Generating Mechanism of Matsushiro,
Central Japan, Earthquake Swarm: Spontaneous
Hydraulic Fracturing: *Y Sasai
0915h VA11C-04 Tectonomagnetic Effect Due to an Inclined
Rectangular Fault: M Utsugi, Y Sasai, Y
Nishida
0930h VA11C-05 The Radiation and Excitation Mechanism of
Seismogenic Electromagnetic Waves Triggered
by the Magnetic Field Variations From Focus:
T Yoshino, I Tomizawa
0945h VA11C-06 Physical Mechanisms of Recent Seismomagnetic
and Volcanomagnetic Events: *M J S Johnston
1000h Break
1015h VA11C-07 About the Nature of Electrotelluric
Precursors of Earthquakes: M Y Balbachan, *M B
Gokhberg
1030h VA11C-08 On the Physical Property of VAN's Seismic
Electric Signals (SES) - Comparison Between
SES and Natural EM Disturbances: *M Uyeshima,
W Kanda, T Nagao, Y Kono
1045h VA11C-09 Seismo-Electromagnetic Wave Generation and
Propagation: *R N Singh
1100h VA11C-10 Penetration of Alternative Electromagnetic
Fields From an Underground Seismic Source
Into the Atmosphere and Ionosphere: *O A
Molchanov, M Hayakawa
1115h VA11C-11 Magnetic and Electric Fields Associated With
Changes in High Pore Pressure in Fault Zones
- Explanation of the Loma Prieta Earthquake
ULF Emissions: M A Fenoglio, *M J S Johnston,
J D Byerlee
1130h VA11C-12 Irregular Oscillation Model in an Earthquake
and the Essentials of Effective Earthquake
Prediction by Electromagnetic Waves: *T
Sengor
1145h VA11C-13 Electric and Magnetic Fields During the
Fluid Flow via the Porous Media With Local
Inhomogeneities of Filtration and Electric
Properties: V V Kormiltsev, A N Ratushniak
1200h VA11C-14 The Mechanism of Electromagnetic and
Temperature Earthquake Precursors: S Ershov,
I Mikhaylowskaya, *O Novik
VA11D EC:Arena Mon 0830h
VJW1 Electromagnetic Effects of Earthquakes and Volcanoes -
Posters (joint with S)
Presiding: M Johnston, USGS; M B Gokhberg,
Inst of Physics of the Earth
0830h VA11D-01 POSTER The Way of Location Source VLF
Electrical Signal in Inhomogeneity Medium
and Implications for Anomalous Electric
Fields Associated With Earthquakes: *E B
Chirkov
0830h VA11D-02 POSTER Study of the Electromagnetic Field
in Two Seismogenic Zones: The Subduction
Zone of the Antilles Arc and the
Intracontinental Seismic Gap (Haiyuan Fault,
China): *J Zlotnicki, J L Viault, J L
Le Mouel, J C Rossignol, P Morat
0830h VA11D-03 POSTER Tectonomagnetic Studies in Central
Italy: Latest Results: *A Meloni, G Mele, P
Palangio
0830h VA11D-04 POSTER Tectonomagnetic Observations in
Baikal Rift Zone for Study of Seismotectonic
and Pre-Earthquake Processes: *P G Djadkov
0830h VA11D-05 POSTER Transient Electric Variations
Associated With Intermediate Depth
Earthquakes in South Aegean: K Nomicos, *F
Vallianatos
0830h VA11D-06 POSTER Effects of the Electrotelluric Field
and Their Bearing on Seismicity of Kamchatka:
*Y F Moroz, S V Popruzhenko
0830h VA11D-07 POSTER Correlation of Local Seismic
Activity and Magnetotelluric Variations: *C
Rozluski
0830h VA11D-08 POSTER The Research of the Short Period
Variation of the Geomagnetic Field Before
Tangshan Earthquake: *A Du
0830h VA11D-09 POSTER Electromagnetic Precursors of
Shikotan Earthquake 4 October 1994: *V A
Morgounov
0830h VA11D-10 POSTER Field Strength Variations of LF
Radio Waves Prior to Earthquakes in Central
Italy: *P F Biagi, M Caputo, A Ermini, F
Bella, G Della Monica, W Plastino, V Sgrigna
0830h VA11D-11 POSTER Recordings of Anomalous ULF Signals
Preceding the Northridge Earthquake of
January 17, 1994: *J Y Dea, P M Hansen, W M
Boerner
0830h VA11D-12 POSTER Lithosphere-Ionospheric Coupling
Mechanism With Special Regard to Earthquake
Prediction: *M B Gokhberg, S L Shalimov
0830h VA11D-13 POSTER Examination of ISIS-2 Satellite
ELF/VLF Recordings for Electromagnetic
Effects Associated With Earthquakes: *C J
Rodger, R L Dowden, N R Thomson
0830h VA11D-14 POSTER On the Connection of
Ultra-low-Frequency Lithospheric
Electromagnetic Emissions' Magnetic
Component With the Earthquakes in Caucasian
Seismically Active Zone: *Y A Kopytenko, P M
Voronov, E A Kopytenko, T G Matiashvili
0830h VA11D-15 POSTER Time Scale of Electrokinetic
Phenomena and Near-Surface ULF Variations of
Magnetic Field: *O Mazhaeva, Y Fujinawa
0830h VA11D-16 POSTER Atmospheric Electric Field Anomalies
Analysis During Great Carpathian Earthquakes
at Polish Observatory Swider: *N N Nikiforova,
S Michnowski
0830h VA11D-17 POSTER Precursor in Anisotropic
Georesistivity and Stress State Before
Earthquakes: *F Qian, Y Zhao
0830h VA11D-18 POSTER Ionospheric Disturbances Caused by
Powerful Explosions and Earthquakes: *Y E
Tarashchuk
0830h VA11D-19 POSTER Comparative Study of Storm
Microbaroms in the Atmosphere and of
Microseisms: E Ponomaryov, A Sorokin, *V
Tabulevich
0830h VA11D-20 POSTER Tectonomagnetic Investigations of
Seismic Gap for Baikal Rift Zone: *V A
Larionov
0830h VA11D-21 POSTER Short Term Prediction of
Catastrophic Earthquakes: Streaming
Potential Precursors: *Y Zhao, F Qian
0830h VA11D-22 POSTER Mechanism of Electromagnetic
Emission Associated With Rock Fracture: *Z Q
Guo, B Liu
VA11E D WRD:Auditorium Mon 0830h
V4 Evolution of Large Volcanic Systems
Presiding: K Hon, USGS; J Pallister, USGS
0830h VA11E-01 Eruption Rates and Styles, and Possible
Atmospheric Impact, of Silicic Caldera
Systems and Flood Basalt Provinces: *S Self
0900h VA11E-02 The Emplacement of Flood Basalts: *K Hon, S
Self, T Thordarson, L Keszthelyi
0930h VA11E-03 Ignimbrite Sedimentation and Generation of
Phoenix Clouds: *B P Kokelaar, M J Branney
1000h Break
1015h VA11E-04 The Role of Magma Chambers in Determining
the Chemical and Physical Characteristics of
Flood Basalts: *R W Carlson
1045h VA11E-05 Formation of Large Layered Gabbro Complexes
in the Lower Crust - Big Results From Little
Chambers: *J E Quick, S Sinigoi, A Mayer
1115h VA11E-06 Contemporaneous Large-Scale Basaltic and
Silicic Volcanism: *A R Duncan
1145h VA11E-07 Large Volcanic Systems: A Planetary
Perspective: *R Lopes-Gautier
VA11F EC:Arena Mon 0830h
V4 Evolution of Large Volcanic Systems - Posters
Presiding: K Hon, USGS; J Pallister, USGS
0830h VA11F-01 POSTER Vent Evolution During the Kaingaroa
Eruption, Taupo Volcanic Zone, New Zealand:
*S W Beresford
0830h VA11F-02 POSTER Development of the Whakamaru Magma
System and the Nature of Primary Rhyolitic
Magmas in Central Taupo Volcanic Zone, New
Zealand: *S J A Brown
0830h VA11F-03 POSTER Evolution of the Indian Peak
Volcanic Field, Great Basin, USA: A Large
Silicic Magma System Related to Subduction:
*E H Christiansen, M G Best, A L Deino
0830h VA11F-04 POSTER Stratigraphy, ~L40~KAR/~L39~KAr
Geochronology, Paleomagnetism, and
Petrologic Evolution of Ash-Flow Tuffs and
Associated Lavas of the Eocene Stone Cabin
Formation, Central Nevada Caldera Complex:
*A L Deino, C S Gromme, M G Best, E H
Christiansen, L E Radke
0830h VA11F-05 POSTER Cretaceous Tectonic Environments of
the Large-Volume Rhyolitic Fields Origin of
the NE Asia (Russia): *N I Filatova
0830h VA11F-06 POSTER Single-Crystal Laser-Fusion
~L40~KAr/~L39~Ar Dating of Early
Post-Lava-Creek-Tuff Rhyolites, Yellowstone
Plateau Volcanic Field: *C A Gansecki, M O
McWilliams, G A Mahood, R L Christiansen
0830h VA11F-07 POSTER Preliminary Study of the
Magnetostratigraphy and Rock Magnetism of
Etendeka Volcanics, Namibia, and Its
Significance to the Timing and Style of
Eruption: *J M Glen, P Renne, S Milner
0830h VA11F-08 POSTER Threat of Active Lava Lake at
Nyiragongo Volcano in Eastern Zaire: *H
Hamaguchi, Y Morita, S Hori, M Wafula, M
Kaseleka, N Zana
0830h VA11F-09 POSTER Origin of Tholeiitic and
Calcalkaline Andesitic Provinces Within
Volcanic Belts: *B V Ivanov
0830h VA11F-10 POSTER Mode of Eruption for the Youngest
Toya Pyroclastic Flow Sheet, Northern Japan:
I W Lee, *T Ui
0830h VA11F-11 POSTER The Major Quantitative Values for
Long-Existing Volcanic Centers of Kamchatka:
*N N Kozhemyaka
0830h VA11F-12 POSTER Evolution of the Large Tertiary
Borovitsa Volcanic System, Bulgaria: *P
Marchev, Y Yanev, J Quick, Z Pecskay
0830h VA11F-13 POSTER Internal Structure of the 27 Ma
Turkey Creek Caldera, Southeast Arizona, USA:
J S Pallister, E A Du Bray
0830h VA11F-14 POSTER The Rabaul Eruption According to the
Internet: Ethical and Informational Dilemmas:
*M P Poland, K L Verosub
0830h VA11F-15 POSTER A Geophysical Contribution to the
Study of Rhyolites in SE Parana
CFB-Province: Preliminary Results: *M C L
Quintas, F B Ribeiro, M S M Mantovani
0830h VA11F-16 POSTER The Cranberry Island Series of
Coastal Maine: Bimodal Volcanism on
Pre-Acadian Avalon: *S J Seaman, R A Wobus
0830h VA11F-17 POSTER Calimani Volcano: An Example of
Trap-Door Caldera in the East Carpathians,
Romania: *I Seghedi
0830h VA11F-18 POSTER A Landsat Thematic Mapper Overview
of the Volcanism and Regional Tectonic
Setting of the Volcano Fantale, Ethiopia: *J P
Rogers
0830h VA11F-19 POSTER Tectonomagmatic Setting of the
Osmundsberg K-Bentonite (Lower Silurian) in
Northwestern Europe: *H Sun, W D Huff
VA12A MUENZ:E050 Mon 1330h
VJS1 Geodynamic Evolution of the Andean Region (joint with IGCP Project 345,
ILP,S)
Presiding: P Silver, DTM/CIW; S E Barrientos, University of Chile
1330h VA12A-01 3-D Upper-Mantle Velocity Structure Beneath
Bolivia: *J VanDecar, P Silver, S Beck, T
Wallace
1345h VA12A-02 The Great 9 June 94 Bolivian Deep
Earthquake: An Exceptional Event in an
Extraordinary Subduction Zone: *E A Okal, E R
Engdahl, S H Kirby
1400h VA12A-03 The Deep Bolivia Earthquake of June 9, 1994:
*S Beck, T Wallace, P Silver, S Myers, M
Tinker, W Jiao, J Wu, D James, G Zandt
1415h VA12A-04 Nazca Intraslab Earthquakes and the
Thermomechanical Evolution of the Nazca
Plate and Descending Nazca Slab: *S H Kirby,
E R Engdahl, E A Okal
1430h VA12A-05 Depth and Tectonic Control of Subduction
Induced Volcanism in Western Margins of the
American Plates: V Hanus, J Vanek
1445h VA12A-06 Neogene Magmatic Evolution and the Shape of
the Subducting Oceanic Slab Beneath the
Central Andean Arc: *S Mahlburg Kay, B Coira,
C Mpodozis
1500h Break
1530h VA12A-07 Shallow Seismicity and Crustal Structure in
Central Chile: *S E Barrientos, E E Vera
1545h VA12A-08 No Moho-Arrivals Beneath the Central Andean
Magmatic Arc (21~Lo~K-23~Lo~KS): *M Schmitz,
M Araneda, G Asch, K Forste, P Giese, C
Haberland, K Lessel, A Schulze, P Wigger
1600h VA12A-09 Seismic Exploration of the Deep Altiplano
(SEDA): Crustal Structure and Mantle
Anisotropy: *G Zandt, S Ruppert, D Rock, E
Minaya, R Acala, L Drake, S Beck, S Myers, T
Wallace, P Silver
1615h VA12A-10 The Origin of the Andean Orogen Since the
Mid Tertiary: *P G Silver, R M Russo
1630h VA12A-11 Finite Element Simulations of Mantle Flow
Around a Deformable Continent: A Model for
South America: *L P Solheim, P G Silver
1645h VA12A-12 Comparability of the Flat-Slab Sectors of
the Andes and Sevier-Laramide USA:
Consequences of Tectonic Erosion and
Coupling at the Subducting Plate Downbend:
*M F Osmaston
VA12B RAMAL:C 250 Mon 1330h
VJW1 Electromagnetic Effects of Earthquakes and Volcanoes
(joint with S)
Presiding: M Johnston, USGS; M B Gokhberg,
Inst of Physics of the Earth
1330h VA12B-01 Continuous Observation of the Geomagnetic
Total Intensity Around a Crustal Active
Region in the North-Eastern Part of the Izu
Peninsula: *N Oshiman, Y Sasai
1345h VA12B-02 Preliminary Results of Self-Potential
Measurements During Aftershock Activity
Following the M7.2 Earthquake in the Kobe
Area, Japan: *Y Honkura, H Tsunakawa
1400h VA12B-03 On the Seismic Resistivity Changes Recorded
at Abratsubo, Central Japan: *H Utada, T
Yoshino, T Yukutake
1415h VA12B-04 Recently Observed Anomalous Changes in
Geoelectric Potential Preceding Earthquakes
in Japan: T Nagao, Y Asai, Y Kono, S Uyeda
1430h VA12B-05 Two Decades of Magnetic Field Monitoring
Along the San Andreas Fault System in
California, U.S.A.: *R J Mueller, M J S
Johnston
1445h VA12B-06 Recent Earthquake Prediction Results in
Greece Based on the Observation of Seismic
Electric Signals: *P Varotsos, K Eftaxias, M
Lazaridou, G Antonopoulos, J Kopanas, J
Makris
1500h Break
1530h VA12B-07 Further Study on the Time Changes in
Geomagnetic Response Functions C and the
1976 Tangshan Earthquake: *P F Chen
1545h VA12B-08 Sudden Increases of the Standard Deviation
of Geoelectric Field Intensities Measured in
the Night Prior to the Earthquakes Occurred
in the Immediate Vicinity: J Miyakoshi, I
Shiozaki, M Nakamura, N Seto
1600h VA12B-09 The Study of Electric and Magnetic Fields
Variations Observed In Situ in the Process
of the Rock Massif Failure: *V A Shapiro, V A
Pyankov
1615h VA12B-10 Tectonomagnetic Effect Associated With Shear
in Fault Zone: *I A Garagash
1630h VA12B-11 Seismomagnetic Precursor Research in China: *Z
Zhijia
1645h VA12B-12 Geoelectric Signals: A Clue to the
Earthquake Process: *J J Chu, X Gui, J Dai, C
Marone, M W Spiegelman, L Seeber, J G
Armbruster
VA12C D WRD:Auditorium Mon 1345h
V4 Evolution of Large Volcanic Systems
Presiding: K Hon, USGS; M Mantovani, Univ of Sao Paulo
1345h VA12C-01 An Evaluation of Emplacement Conditions for
Long Volcanic Flows on Planetary Surfaces:
*J R Zimbelman
1400h VA12C-02 Arguments Against the Turbulent Emplacement
of Flood Basalt Lava Flows: *L Keszthelyi, S
Self
1415h VA12C-03 Constraints on Mechanisms of Pyroclastic
Eruptions on Santorini, Greece, From
Palaeomagnetic Measurements: *E McClelland, L
Bardot, R Thomas, D Kondopoulou
1430h VA12C-04 Genesis of Quaternary Large Scale Acid
Volcanism in the Ethiopian Rift Valley: A
Peccerillo, Y Gezaegn, A Dereje
1445h VA12C-05 Rift-Related, Large-Volume Silicic Volcanism
Associated With Early Cretaceous Continental
Breakup, Eastern Australia: C J Stephens, A
Ewart, S E Bryan, R W Schon
1500h Break
1530h VA12C-06 The Oceanic Basalt-Rhyolite Association of
Gran Canaria: Evidence From Land and From
the Sea: H U Schmincke, M Sumita, A Freundt,
K Hoenle, P van den Bogaard
1545h VA12C-07 The Genesis of Large Volume of High Silica
Magma From Mafic High Silica Mantle Melts:
The Examples of Monti Cimini and Monte
Amiata, Central Italy: *S Conticelli, G Poli,
L Francalanci, P Manetti
1600h VA12C-08 Basalt-Rhyolite Volcanism of the High Lava
Plains, Mirror of the Snake River Plain: A L
Grunder, J A Johnson, M J Streck
1615h VA12C-09 The Central Nevada Caldera Complex in the
Middle Tertiary Ash-Flow Province of the
Great Basin, USA: *M G Best, E H Christiansen,
A L Deino, C S Gromme
1630h VA12C-10 The Nature of Subvolcanic Magma Reservoirs
in Central Taupo Volcanic Zone, New Zealand
as Evidenced by Lithic Fragments in Large
Volume Ignimbrites: *S J A Brown, J W Cole,
S W Beresford, D Shelley
1645h VA12C-11 The Origin and Differentiation of Magmas of
the Oligocene SE San Juan Volcanic Field
(Platoro Caldera Complex), Colorado, USA: M A
Dungan, S Moorbath, M T Colucci, S D Balsley,
K M Ferguson
VA21A MUENZ:E050 Tues 0830h
ILPS Geodynamic Evolution of the Andean Region (joint with IGCP Project 345,
ILP,S)
Presiding: H J Goetze, FU Berlin; V A Ramos,
University of Buenos Aires
0830h VA21A-01 Probable Contribution of Lithospheric
Heating to the Isostatic Balance in the
Central Andes: A Introcaso, M C Pacino
0845h VA21A-02 The Lithosphere of the Andean Region:
Thermal Structure and Rheologic Heterogeneity:
*M Munoz
0900h VA21A-03 Lithospheric Density Distribution and
Isostatic State of the Central Andes: *H J
Goetze, A Kirchner, S Mohr, S Schmidt
0915h VA21A-04 The Central Andean Lithosphere, Thickened by
Tectonic and Magmatic/Metamorphic Processes:
*P Giese
0930h VA21A-05 Paleomagnetic Rotations, Deflections, and
Crustal Thickening in the Andean Cordillera:
*C Laj, C Kissel, J Surmont, P Mitouard,
O Macedo-Sanchez
0945h VA21A-06 Rates of Late Cenozoic Shortening in the
Andean Foreland: R W Allmendinger, T R Zapata
1000h Break
1030h VA21A-07 Neogene Kinematics Associated With Plateau
Uplift at the Southern Edge of the
Argentinian Puna: *M de Urreiztieta, O
Bourgeois, D Gapais, C Le Corre, P Cobbold, E
Rossello
1045h VA21A-08 3-D Flexural Deformation of the Western S.
American Plate: Distribution of Late
Cenozoic Sub-Andean Foreland Peripheral
Bulges: *N Ussami, S Shiraiwa
1100h VA21A-09 Foreland Basin Evolution: Clues to Late
Oligocene-Miocene Andean Growth, Bolivia and
Argentina: *T E Jordan, J H Reynolds, J
Erikson
1115h VA21A-10 The Evolution of Deformation and Topography
of the Central Andes: *S Wdowinski, Y Bock
1130h VA21A-11 Tectonic Evolution of the Argentine Andean
Foreland Basin Based on Paleomagnetic Studies:
G H Re, *J F Vilas
1145h VA21A-12 Vertical Axis Rotations in Tertiary
Sedimentary Rocks, Central Andes: C B Prezzi,
*J F Vilas, R Somoza, A M Sinito
VA21B RAMAL:C250 Tues 0830h
VJW1 Electromagnetic Effects of Earthquakes and Volcanoes
(joint with S)
Presiding: M Parrot, LPCE/CNRS; Y Fujinawa,
National Res Inst for Earth
0830h VA21B-01 Ionospheric Disturbances Associated With
Great Earthquake: *T Ondoh
0845h VA21B-02 GPS Detection of Ionospheric Perturbations
Following the January 17, 1994, Northridge
Earthquake: *E Calais, J B Minster
0900h VA21B-03 Observations of ULF Magnetic Fields
Preceding Earthquakes: Progress Six Years
After Loma Prieta: *A C Fraser-Smith
0915h VA21B-04 ULF Emissions Associated With the Guam
Earthquake in 1993: R Kawate, M Hayakawa, O A
Molchanov
0930h VA21B-05 Analysis of TEC Measurements Above Active
Seismic Regions: *M Parrot, Y Zaslavski, E
Blanc
0945h VA21B-06 Seismoionospheric Effects in Conjugate
Hemispheres on Base of Low Frequency and
Particle Precipitation Measurements: V N
Oraevsky, Y Y Ruzhin, V I Larkina
1000h Break
1015h VA21B-07 Characteristics of Anomalous Subsurface
Electric Field Changes Related to
Earthquakes and Volcanic Eruptions: *Y
Fujinawa, K Takahashi
1030h VA21B-08 Self Potential Anomaly as a Sign of
Subsurface Hydrothermal Activity - Unzen
Volcano, Japan: T Hashimoto, Y Tanaka
1045h VA21B-09 Slow Magnetic Variations on La Fournaise
Volcano Over a 9 Years Time Span: *J
Zlotnicki, S Michel, J L Le Mouel
1100h VA21B-10 Micromagnetic Variations at Mount Etna,
Sicily: R Rees, H Rymer, *W J McGuire
1115h VA21B-11 Thermal Magnetic Changes on Aso Volcano
(1989-1994): *Y Tanaka
1130h VA21B-12 An Anomaly of ELF Vertical Magnetic Flux as
a Precursor of Dome Formation at Unzen
Volcano and Its Model Analysis: *M Hata, S
Yabashi, X Tian
1145h VA21B-13 Radiation From Electric Dipole Moment
Generated by Magma's Hydrothermal Flow at
Outlet of Aquifer of Volcano: X Tian, *M Hata
VA21C D WRD:Auditorium Tues 0900h
V4 Restless Calderas
Presiding: J Pallister, USGS, Denver; J Cole, Univ of Canterbury
0900h VA21C-01 Eruption Forecasting at Large, Restless
Calderas: *D P Hill
0930h VA21C-02 Active Deformation of the Yellowstone
Caldera Imaged by GPS: C M Meertens, R B
Smith
1000h VA21C-03 The 1994 Eruptions at Rabaul Volcano, Paupua
New Guinea: *C McKee, B Talai, N Lauer, R
Stewart, P deSaint Ours, I Itikarai, H Patia,
D Lolok, H Davies, R W Johnson
1030h Break
1045h VA21C-04 Mechanisms of Unrest Episodes at Campi
Flegrei Caldera: *G De Natale
1105h VA21C-05 Deformational History of the Campi Flegrei
Nested Caldera: L Civetta, S de Vita, M
Di Vito, *G Orsi
1125h VA21C-06 The Campi Flegrei Caldera: Volcanism and
Resurgence in a Densely-Populated Nested
Caldera: L Civetta, S de Vita, M Di Vito, *G
Orsi
1145h VA21C-07 Structural Control of the Thira Volcanic
Field, Greece-Vent Locations, Calderas, and
Hazard Evaluation: *G H Heiken, F W McCoy
VA22A MUENZ:E050 Tues 1330h
VJS1 Geodynamic Evolution of the Andean Region (joint with IGCP Project 345,
ILP,S)
Presiding: S Kay, Cornell Univ; G A Yanez,
Servicio Nacional de Geologia y Mineria
1330h VA22A-01 Spreading Rate History and Plate Boundary
Reorganizations of the Chile Ridge: *S F
Tebbens, S C Cande
1345h VA22A-02 Late Cenozoic Evolution of Plateau Magmatism
in Southern Patagonia SE of the Chile Triple
Junction: *M L Gorring, S M Kay, V A Ramos,
P K Zeitler
1400h VA22A-03 Geophysical Studies of the Chile Margin
Triple Junction: *R Murdie, P Styles, D Prior
1415h VA22A-04 Genesis of Adakites from the Andean AVZ:
Role of Subducted Slab, Mantle Wedge, and
Crust: *C R Stern, R Kilian
1430h VA22A-05 The Origin of Low-K and High-K Basalts From
the Southern Andean Volcanic Zone: *R Kilian,
E Hegner, M Satir
1445h VA22A-06 Transition From Accretion to Tectonic
Erosion Across the Chile Margin Triple
Junction: *G K Westbrook, A Lothian
1500h Break
1530h VA22A-07 Chemical and Isotopic Constraints on the
Origin of Pleistocence to Pliocene Trench
Sediments at the Chile Triple Junction: *J
Behrmann, R Kilian
1545h VA22A-08 Miocene Granitoids in Southern Chile as
Fore-Runners of Southern Volcanic Zone
Volcanism: *R J Pankhurst, S D Weaver, F
Herve
1600h VA22A-09 Temporal Geochemical Variation in Alkalic
Basalts Erupted Behind the Andean Volcanic
Front (35~Lo~K-37~Lo~KS): Evidence for
Changing the Angle and/or Rate of Subduction:
*A E Saal, F A Frey, D Delpino, A Bermudez
1615h VA22A-10 Chemical Evolution of Volcan Tatara-San
Pedro, 36~Lo~KS, Chilean Andes as Reflected
in Chemo-Stratigraphic Columns: *A H Wulff
1630h VA22A-11 Tectonic Trigger for the Formation of Giant
Miocene to Pliocene Copper Deposits in
Central Chile (32-34~Lo~KS): *M A Skewes
1645h VA22A-12 The Fold and Thrust Belt of the Central
Andes in Alto Rio Tunuyan (33~Lo~K30'S
Latitude, Chile and Argentina): *V A Ramos, V
Godoy, E Godoy
VA22B RAMAL:C250 Tues 1330h
VJW1 Electromagnetic Effects of Earthquakes and Volcanoes
(joint with S,V)
Presiding: M Parrot, LPCE/CNRS; Y Fujinawa,
National Research Inst for Earth
1330h VA22B-01 Electromagnetic Phenomena Generated by the
Explosion: *H Sakai, T Kato, T Kobayashi, T
Okado, Y Fujinawa
1345h VA22B-02 Experiment on Electromagnetic Radiation EMR
During Rock Failure: A Rabinovitch, V Frid, *D
Bahat
1400h VA22B-03 Generation of ULF Emission by Microfracturing:
O A Molchanov, M Hayakawa
1415h VA22B-04 The Experimental Results on the Actual
Measurement of Energy Transmission Loss of
Magnetic Field Components Across the Tunnel
to Tunnel: T Yoshino, H Sato
1430h VA22B-05 Laboratory Investigation of the Origin of
Electric Signals Preceding Earthquakes: *C
Mavromatou, V Hadjicontis
1445h VA22B-06 The Role of Electric Energy in Earthquake
Origination: *S Balassanian, C Bakhsian
VA22C CIRES:Auditorium Tues 1330h
V4 Restless Calderas/Evolution of Large Volcanic Systems
Presiding: M Mantovani, Univ of Sao Paulo; J Cole,
Univ of Canterbury
1330h VA22C-01 The Historic Activity of Santorini Volcanic
Field Occurring After the Explosive
Rhyodacitic Eruption of Minoan Age: Examples
of Interaction Between Mafic and Acid Magmas:
*L Francalanci, G Vougioukalakis, G
Eleftheriadis, P Manetti, S Conticelli, C
Petrone, A Sbrana
1345h VA22C-02 Bimodal Nature of the Eruptive History of
Cotopaxi Volcano, Ecuador: *M L Hall, P A
Mothes
1400h VA22C-03 A Preliminary Outline of Space-Time
Evolution of Taal Caldera, Philippines: *E L
Listanco
1415h VA22C-04 Researches on Quaternary Pyroclastic
Deposits and Their Hazards in Northeast China:
*L Xiang
1430h VA22C-05 Subsidence of Ash-Flow Calderas: Role of
Magma-Chamber Geometry: *P W Lipman
1445h VA22C-06 Comparison of Crustal Structure Beneath
Valles Caldera, New Mexico and Long Valley
Caldera, California: *L Steck, W Lutter, M
Fehler, C Thurber, C Weiland, S Baldridge, P
Roberts
1500h VA22C-07 Evolution of the Yellowstone Hotspot:
Variation in Frequency, Temperature, and
Composition of Large Silicic Eruptions From
17 Ma to the Present: *W P Nash, M E Perkins
1515h Break
1530h VA22C-08 Silicic Volcanism Along the 16-Ma
Yellowstone Hot Spot Track: Evidence for
Change in Plume Dynamics at 10 Ma: *L A
Morgan, K L Pierce
1545h VA22C-09 Distortion of the Yellowstone Starting Plume
Head Against the Precambrian Margin of North
America: An Active-Mantle Origin for
Columbia River Basalt Volcanism: *V E Camp
1600h VA22C-10 Solitons, Mantle Shear, and the Segmentation
of Plume Tails: Plume Dynamics in the Snake
River Plain, Idaho: *J Shervais, S Vetter, B
Bonnichsen
1615h VA22C-11 Seismic Investigations of the Greater
Yellowstone System: K Dueker, *E Humphreys,
R Palmer, X Peng
1630h VA22C-12 Seismicity at Mount Rainier, Washington: *S C
Moran, A Qamar, S D Malone
1645h VA22C-13 Tomographic Images Illuminate Mount
Rainier's Potential Volcanic Hazard: *J M
Lees, S C Moran
VA31A D WRD:Auditorium Wed 0830h
V7 Volcano Flank Instability
Presiding: R Denlinger, Hawaii Volcano Observatory; A Borgia,
Istituto Nazionale di Geofisica
0830h VA31A-01 Evidence for Sector Collapse During Volcano
Growth: *P W Francis
0900h VA31A-02 Landslide Mechanics and Volcano Flank
Instability: *R M Iverson
0930h VA31A-03 Coupling of Magmatic Processes, Flank
Expansion, and Earthquakes at Kilauea
Volcano, Hawaii: *J H Dieterich
1000h Break
1020h VA31A-04 Structure and Evolution of La Reunion
Volcano Edifice From Exploration Seismics: A
Hirn, J C Lepine, M Sapin, V Lankar, A
Nercessian, L Driad, M Laigle, B de Voogd, S
Pou, J Gallart, J Danobeitia, P Charvis, R
Nicolich
1040h VA31A-05 New Insights Into the Structural Evolution
of the Volcanic System of Reunion: *J F Lenat,
B Malengreau, P Labazuy, A Galdeano
1100h VA31A-06 Extension of the Rift System at Kilauea
Volcano: *P T Delaney, J P Kauahikaua
1120h VA31A-07 A Delicate Balance at Kilauea Volcano:
Insights Gained From a Four Month Pause in
Seaward Flank Displacement: *R P Denlinger, M
Lisowski, A Miklius, M Sako
1140h VA31A-08 Relative Flank Stability of Mauna Loa, Hawaii:
P W Lipman, D A Swanson
VA31B EC:Arena Wed 0830h
V7 Volcano Flank Instability - Posters
Presiding: R Denlinger, Hawaii Volcano Observatory; A Borgia,
Istituto Nazionale di Geofisica
0830h VA31B-01 POSTER The Role of the Basal Boundary
Condition in the Structural Development of
Large Volcanoes: *P J McGovern
0830h VA31B-02 POSTER The Role of the Hilina Fault System
in the Deformation of the Mobile South Flank
of Kilauea Volcano, Hawaii: *R Burgmann, R
Denlinger
0830h VA31B-03 POSTER Instability by the Growth of Dike
Complex: Examples of a Volcano With the
Cyclic Activity of Flank and Central
Eruptions: *A Takada
0830h VA31B-04 POSTER Flank Instability on Lava Domes on
Venus: *M H Bulmer
0830h VA31B-05 POSTER Sector Failures and Accompanying
Eruptions at Harimkotan Volcano (Kurile
Islands): A B Belousov, *M G Belousova
0830h VA31B-06 POSTER Dynamic and General Modeling of a
Volcanic Debris Avalanche: Some Examples of
Application: *J Fernandez, L Garcia Cacho, V
Arana, R del Rey
0830h VA31B-07 POSTER The Importance of Chiancone
Volcaniclastic Sequence in the Recent
History of Etna Volcano (Italy): *S Calvari,
G Groppelli
0830h VA31B-08 POSTER Rapid Motion of Mauna Loa Volcano's
East Flank: *A Miklius, R Denlinger, M
Lisowski, P Okubo, M K Sako
0830h VA31B-09 POSTER Pressure History of Kilauea's Magma
System Since 1955, With Implications for
Magma Supply and Flank Stability: *R P
Denlinger, A Miklius, M Sako
0830h VA31B-10 POSTER A Multifractal Approach to the
Space-Temporal Distribution of the Mt. Etna
Volcano Seismicity: Kinematical and
Geodynamic Implications: *V Latora, S
Vinciguerra, A Montalto, G Patane, A
Rapisarda
0830h VA31B-11 POSTER Erosion, Eruptions, Explosives, et
Glissements de Flanc: Discussion sur les
Modalites de Formation de la Caldera de Las
Canadas (Tenerife, Iles Canaries, Espagne): *G
Kieffer, P Y Gillot, G Camus, A Gourgaud
0830h VA31B-12 POSTER Cycles of Volanic Growth,
Flank-Failure and "Caldera Scarps" in Canary
Islands: E Ancochea, *J M Fuster, M J Huertas,
E Ibarrola, J Coello, J M Navarro
0830h VA31B-13 POSTER Mechanical and Thermal Mechanisms
for Generating Suprahydrostatic Pore Fluid
Pressures in Volcano Flanks: *D Elsworth, B
Voight
0830h VA31B-14 POSTER Flow and Deposition Mechanisms of
the Zenkoji Debris Avalanche, Usu Volcano,
Southwestern Hokkaido, Japan: *S Takarada
0830h VA31B-15 POSTER Block-and-Ash Flows: Unrecognized
Hazard at Mayon Volcano, Philippines: *S
Geronimo-Catane, E L Listanco, H T Mirabueno
0830h VA31B-16 POSTER Explosion Induced Failure of the
North Slope of Mt St Helens: *A Rice
0830h VA31B-17 POSTER Radial Stresses From Volcanoes
Generate Large Earthquakes: *M Wyss
0830h VA31B-18 POSTER Internal Structure and Weaknesses of
La Soufriere Volcano, Guadeloupe, FWI:
Convergence Between Geological Information,
Self-Potential, and Groundwater Chemical
Surveys: M P Semet, J Zlotnicki, G Boudon, S
Bigot, G Hammouya, M Feuillard, *J L Cheminee
0830h VA31B-19 POSTER Volcano Flank Instability Induced by
Regional Extension: The Case of Roccamonfina
Volcano in Southern Italy: D De Rita, G
Giordano
VA32A D WRD:Auditorium Wed 1320h
V7 Volcano Flank Instability
Presiding: R Denlinger, Hawaii Volcano Observatory; A Borgia,
Istituto Nazionale di Geofisica
1320h VA32A-01 Gigantic Debris Avalanche Deposit Fans at
Paired Volcanoes in the Trans-Mexican
Volcanic Belt: Examples From Colima and
Popocatepetl: *C Siebe, J L Macias, J C
Komorowski, M Abrams
1340h VA32A-02 Giant Debris Avalanches From Popocatepetl
Volcano, Mexico: *M Abrams, C Siebe, J L
Macias, H Delgado
1400h VA32A-03 Large Flank Failures in the Holocene
Eruptive History of Shiveluch Volcano,
Kamchatka, Russia: *V V Ponomareva, M M
Pevzner
1420h VA32A-04 Mass Movements Associated With Quaternary
Volcanoes in Hokkaido, Japan: *H Yamagishi, Y
Ito
1440h Break
1500h VA32A-05 Volcano Flank Instability at Mount Etna,
Sicily: *W J McGuire, C Vita-Finzi, C R Firth,
I S Stewart, S J Saunders
1520h VA32A-06 Etna and Its Seaward Flank at Crust-Mantle
Scale: Evidence of Deep Upwarp and Surface
Extension: R Nicolich, L Cernobori, L
Petronio, M Romanelli, A Hirn, M Laigle, F
Avedik, J C Lepine, J Gallart, M Sachpazi
1540h VA32A-07 Environmental Influences on Slope Stability,
Mt. Etna, Sicily: *P J Rollin
1600h VA32A-08 La Destabilisation du Flanc Oriental de
l'Etna (Sicile, Italie): Modalites et
Consequences: *G Kieffer
1620h VA32A-09 Contrasting Origin and Evolution of the
Eastern and Western Canarian Islands: *J C
Carracedo, S J Day
1640h VA32A-10 The Structure and Mechanics of Asymmetric
Rift Flank Collapses in the Canary Islands:
*S J Day, J C Carracedo
VA41A EC:Arena Thurs 0830h
V1 Origin of Large Igneous Provinces - Posters
Presiding: W W Sager, Texas A&M Univ; L S Marques,
Univ of Sao Paulo
0830h VA41A-01 POSTER A MOMO - Episode Near the KT
Boundary, Crustal Accretion and the Gravity
Signature Over the NW India: *U Raval
0830h VA41A-02 POSTER Origin of Komatiites: *V N Anfilogov
0830h VA41A-03 POSTER Lead Isotope Constraints on the
Origin of Continental Flood Basalts of
Parana Magmatic Province (Southern Brazil):
*L S Marques, B Dupre
0830h VA41A-04 POSTER Geochemistry and Tectonic Setting of
the Basaltic Lava Flows of Deccan Trap Age
and Associated Dykes in the Narmada Valley
Region Around Barwah, District Khargone,
M.P., India: *R S Raghuwanshi, K K Rao
0830h VA41A-05 POSTER Petrological Study of Lava Flows and
Associated Dykes Around Bakaner, Dhar
District, Madhya Pradesh, India: *K K Rao
0830h VA41A-06 POSTER The Paleoproterozoic Silicious
High-Mg Series Province on the Baltic Shield:
E V Sharkov, V F Smol'kin
0830h VA41A-07 POSTER Intercontinental Igneous Provinces:
Erupted Volumes Statistical Study: *A N
Zemtsov, S A Kurenkov
VA41B D WRD:Auditorium Thurs 0930h
V1 Origin of Large Igneous Provinces
Presiding: M Coffin, Univ of Texas, Austin; C Farnetani,
Univ of California, B
0930h VA41B-01 Stratigraphy and Correlations Amongst Karoo
Basalts: Implications for Evolution of the
Karoo Igneous Province: *J S Marsh, P R
Hooper, J Rehacek, R A Duncan, A R Duncan
0945h VA41B-02 Karoo Basalts and Picritic Basalts From the
Tuli Syncline of Zimbabwe and Botswana: *A R
Duncan, J S Marsh, A P le Roex, S H
Richardson
1000h Break
1030h VA41B-03 Ontong Java and Kerguelen Plateaus:
Cretaceous Icelands?: M F Coffin, L M Gahagan
1045h VA41B-04 A Fresh Look at Ontong Java Plateau: *E L
Winterer, M Nakanishi
1100h VA41B-05 Mantle Plume Melting and Magmatic
Fractionation in Oceanic Plateau Genesis: A
Model for the Crustal Structure of the
Ontong Java Plateau: *C G Farnetani, M A
Richards, M S Ghiorso
1115h VA41B-06 Drillhole Lavas From the Northwestern Deccan
Traps, and the Evolution of Reunion Plume
Mantle: *J J Mahoney, Z X Peng
1130h VA41B-07 Deccan Flood Basalt Province: *K V Subbarao,
P R Hooper, J N Walsh
VA41C EC:Arena Thurs 0830h
V5 Dynamics of the Magma/Hydrothermal Interface - Posters
Presiding: S Ingebritsen, USGS, Menlo Park; C Jaupart,
Inst de Physique du Globe de Paris
0830h VA41C-01 POSTER Numerical Modeling of Heat Transport
and Oxygen Isotope Alteration in
Hydrothermal Systems: The Skaergaard
Intrusion Revisited: *T H Brikowski, R T
Gregory
0830h VA41C-02 POSTER Mathematical Modeling of
Magma-Hydrothermal System, Usu Volcano, Japan:
*N Matsushima, T Ishido
0830h VA41C-03 POSTER Transport Rates of Magmatic Fluids
to the Hydrothermal System of Redoubt
Volcano, Alaska, Constrained From
Long-Period Seismicity: *M M Morrissey, B A
Chouet
0830h VA41C-04 POSTER Determination of the Level of Water
Source in Geyser Valley (Kamchatka): Static
Hydrothermal Approach: A S Steinberg, E A
Korolev
0830h VA41C-05 POSTER Magma-Groundwater Interactions Shown
by Dike Contact Phenomena in Antarctic
Volcanoes: *W E LeMasurier
0830h VA41C-06 POSTER Volcanic-Hydrothermal System of
Baransky Volcano, Iturup Island, Kuriles: Y A
Taran, L M Yurova
0830h VA41C-07 POSTER Volcanological Significance of Low
Resistive Layer Beneath Volcanoes: *T
Kagiyama, H Utada
0830h VA41C-08 POSTER Tectonic Features, Volcanic
Activity, and Hydrothermal Circulations on
La Fournaise Volcano Inferred From Self
Potential Surveys: S Michel, *J Zlotnicki
0830h VA41C-09 POSTER Morphological Insights of Self
Potential Anomalies on Eight Volcanoes: *Y
Nishida, J Zlotnicki
0830h VA41C-10 POSTER Fluids Geochemistry of Mt. Etna
Volcano: P Allard, W D'Alessandro, *F Parello
VA41D UMC:Forum Room Thurs 0830h
V5 Dynamics of the Magma/Hydrothermal Interface
Presiding: S Ingebritsen, USGS, Menlo Park; C Jaupart,
Inst de Physique du Globe de Paris
0830h VA41D-01 INVITED The Magmatic-Hydrothermal Interface
Intersected by Geothermal Wells Drilled into
Mt. Pinatubo Volcano, the Philippines: *A G
Reyes
0900h VA41D-02 INVITED Volatile Fluxes Integrated Over
Four Decades at Grimsvotn Volcano, Iceland:
*A M Agustsdottir, S L Brantley
0915h VA41D-03 High Heat Discharge, Volcanic Activity, and
Caldera Collapse in the Grimsvotn Volcano,
Iceland: *M T Gudmundsson
0930h VA41D-04 INVITED Topology and Dynamics of a
Magma-Influenced Brine Interface: *M A
McKibben, A E Williams
1000h Break
1030h VA41D-05 INVITED Do Black Smoker Hydrothermal
Systems Originate From Magma Bodies, Crustal
Hot Rock, or Mantle Diapirs?: *C R B Lister
1100h VA41D-06 Modeling of Heat Exchange Between the
Sea-Floor Black Smoker System and Magma
Chamber: *A O Gliko, A G Petrunin
1115h VA41D-07 INVITED Hydrodynamical Cellular Automata
Models of Fluid Flow and Mineral
Precipitation in Mid-ocean Ridge
Hydrothermal Systems: *W C Shanks, D R
Janecky, S Y Chen
1145h VA41D-08 Seawater Contribution to Volcanic Gases: *Y A
Taran
VA41E ENGR:CRO-30 Thurs 0930h
V7 Volcano Flank Instability
Presiding: R Denlinger, Hawaii Volcano Observatory; A Borgia,
Istituto Nazionale di Geofisica
0930h VA41E-01 A Rift-Transform System on an Active
Volcano: Etna, Italia: *A Borgia, A Tibaldi,
G Pasquare, M Neri, V H M Garduno
0950h VA41E-02 Why Was the 1980 Bulge on the North Flank of
Mount St. Helens?: *D A Swanson, B P Hausback,
D R Zimbelman
1010h Break
1030h VA41E-03 Twin Debris Avalanche: Evidence of
Multi-phase Collapse Events Occurring at
Stratovolcanoes: *T Ui, M Yoshimoto, S G
Geronimo-Catane
1050h VA41E-04 Destruction of the Cone of Stratovolcano: V V
Adushkin, *Y N Zykov, S A Fedotov
1110h VA41E-05 Long-Term Evolution of Stratovolcanoes
Viewed as Self-Organized Critical Phenomenon:
*A Szakacs, C Suteanu
1130h VA41E-06 Destabilizing Hydrothermal Pressurization in
Volcanoes: *M E Reid
1150h VA41E-07 The Development of Collapse Structures in
Stratocones: *B van Wyk de Vries
VA42A D WRD:Auditorium Thurs 1330h
V1 Origin of Large Igneous Provinces
Presiding: N Arndt, Univ de Rennes; S L Chung,
National Taiwan Univ
1330h VA42A-01 Komatiite Volcanism: Evidence for a 3.5 Ga
Oceanic Plateau From the Barberton
Greenstone Belt, South Africa: *M Cloete
1345h VA42A-02 Dynamic Melting Produces Heterogeneities in
the Plume Source of Gorgona Komatiites: *N T
Arndt, A Kerr, J Tarney, A Saunders, G
Marriner, M J Cheadle
1400h VA42A-03 Shatsky Rise and Its Implications for the
Plume-Head Hypothesis of Oceanic Plateau
Formation: *W W Sager
1415h VA42A-04 The Interior of an Oceanic Plateau: Evidence
From the Obducted Mafic and Ultramafic
Sequences in Western Colombia: *A C Kerr, J
Tarney, A D Saunders, G F Marriner, A Nivia,
N T Arndt
1430h VA42A-05 ~L40~KAr/~L39~KAr Results From the Etendeka
Magmatic Province, Namibia, and Comparison
With the Parana Province: *P R Renne, S C
Milner, J M Glen
1445h VA42A-06 ~L40~KAr/~L39~KAr Dating of Ethiopian Traps:
C Hofmann, G Feraud, R Pik, C Coulon, G Yirgu,
D Ayalew, C Deniel, V Courtillot
1500h Break
1530h VA42A-07 Excess ~L40~KAr in Biotite and Hornblende
From the Noril'sk 1 Intrusion: Implications
for the Age of the Siberian Traps: *P R Renne
1545h VA42A-08 Age and Duration of Magmatism Contributing
to the Siberian Flood Basalt Province: C
Mitchell, J G Fitton, *M S Pringle, J R
Wiijbrans, A I Al'Mukhamedov, V V Zolotukhin,
Y R Vassil'eva, N K Kulakhmetov
1600h VA42A-09 Episodes of Flood Basalt Volcanism Defined
by ~L40~KAr/~L30~KAr Age Distributions:
Correlation With Mass Extinctions?: *M R
Rampino, B M Haggerty
1615h VA42A-10 Mass Extinctions in the Last 300 Ma: One
Impact and Seven Flood Basalts: *V Courtillot
1630h VA42A-11 Origin of the Emeishan Flood Volcanism in
South China and Its Connection With the
Permo-Triassic Mass Extinction: *S L Chung,
L H Lin, C H Lo, B M Jahn
1645h VA42A-12 Permian and Cenozoic Large Igneous Provinces
in China: *X Mo
VA42B UMC:Forum Room Thurs 1330h
V5 Dynamics of the Magma/Hydrothermal Interface
Presiding: S Ingebritsen, USGS, Menlo Park; C Jaupart,
Inst de Physique du Globe de Paris
1330h VA42B-01 Transport of Energy and Volatiles From Dykes
Into a Geothermal System: Evidence From the
1975-1985 Rifting Episode in Krafla,
N-Iceland: *N Oskarsson
1345h VA42B-02 Models for Volatile Transport Beneath
Mammoth Mountain, California: *M L Sorey, W C
Evans, C D Farrar, B M Kennedy
1400h VA42B-03 Magma-Groundwater Interaction: Evidence From
Cyclic Tremor Occurrence and Geomagnetic
Variations at Izu-Oshima Volcano, Japan: *H
Watanabe
1415h VA42B-04 Mechanics of Magma/Water Interaction,
Ukinrek Maars, Alaska: M H Ort, K H Wohletz,
C A Neal, V S McConnell
1430h VA42B-05 INVITED Transitions Between Explosive and
Effusive Eruptions: *A W Woods
1500h Break
1530h VA42B-06 Experiments on Phreatomagmatic Explosions in
a Transparent System: B Zimanowski, G
Froehlich, V Lorenz
1545h VA42B-07 Drilling the Magma-hydrothermal Interface:
WISDP, The White Island Scientific Drilling
Project, New Zealand: *W A Elders
1600h VA42B-08 Magmatic Interludes in Active Hydrothermal
Systems: Processes and Chemical Signatures:
*B W Christenson
1615h VA42B-09 Single-Stage Hydrothermal Alteration at
Mount Rainier Volcano, Washington: *D R
Zimbelman, R O Rye, G S Plumlee
1630h VA42B-10 INVITED Hydrologic Modeling of
Magmatic-Hydrothermal Systems: *D O Hayba,
S E Ingebritsen
1645h VA42B-11 Air Convection in the Vicinity of Igneous
Intrusions: L A Auer, N D Rosenberg
VA51A EC:Arena Fri 0830h
VJS2 Subduction Zone Processes at 25-200 km Depth - Posters
(joint with ILP,S)
Presiding: G Bebout, Lehigh University
0830h VA51A-01 POSTER Cinder Cone Size Related to
Subduction Signature in the Ipala Graben,
Southeast Guatemala: *K G Bemis, L C Patino,
M J Carr
0830h VA51A-02 POSTER A Temperature and Gravity Model of
Spreading-Centre Subduction, With
Application to Southern Chile: *A J Daniel,
N J Kusnir, P Styles
0830h VA51A-03 POSTER Mantle Processes of the Western
Mediterranean Recorded in the Ronda
Peridotite: *R Govers, D van der Wal
0830h VA51A-04 POSTER Constraints on Mantle Dynamics in
the SW Pacific: New Pb-Sr-Nd Isotope Data
From 'Eua Island, Tonga: *P D Kempton, D
Tappin
0830h VA51A-05 POSTER Interaction of Tonalitic Melts With
Mantle Peridotite: Evidence From a Xenolith
of the Southern Andes: *R Kilian
0830h VA51A-06 POSTER Thermal Structure and Hydration
Conditions in the Southern Alaska Subduction
Zone From Thermal Modeling and Seismic
Tomography: *S C Ponko, S M Peacock, C O
Sanders
0830h VA51A-07 POSTER Do Crustal High Conductivity Zones
at Active Continental Margins Image Tectonic
Processes?: *G Schwarz
0830h VA51A-08 POSTER Three-Dimensional Attenuation
Structure of the Uppermost Mantle of the
Subduction Zone at Central Japan: *S
Sekiguchi
0830h VA51A-09 POSTER Systematics of Garnet Structure
Variation With Pressure and Composition: *H M
Smith, J R Smyth, M Harrell, J M Brown
0830h VA51A-10 POSTER Transport of Metamorphic Fluid in
Subducting Slab: *E I Suetnova
0830h VA51A-11 POSTER Subducted Sediments in Magmas From
Gunung Slamet Volcano, Java: Trace-Element
and Isotopic Constraints: *D Vukadinovic, C
Gariepy, I A Nicholls, D J Whitford
0830h VA51A-12 POSTER Geochemical Evidence for the
Multiple Source Components Beneath the Bashi
Segment of the Taiwan-Luzon Arc: *T F Yang,
C H Chen, T Lee, M D Kurz, R S Punongbayan
VA51B D WRD:Auditorium Fri 0830h
VJS2 Subduction Zone Processes at 25-200 km Depth (joint
with ILP,S)
Presiding: S Peacock, Arizona State University
0830h VA51B-01 On the Petrologic, Thermal, and Seismic
Structure of the Subduction-Zone Mantle Wedge:
*S M Peacock, S C Ponko, C O Sanders
0850h VA51B-02 Water in Subduction Zones: *I Selwyn Sacks, D
Zhao, C Kincaid
0910h VA51B-03 Seismic Tomography of Subduction Zones and
Its Implications for Island Arc Magmatism: *D
Zhao
0930h VA51B-04 Subduction of the Pacific Plate Beneath the
NE Japan Arc as Estimated From Seismic
Observations: A Hasegawa, N Umino, T
Matsuzawa, S Matsumoto, N Tsumura
0950h Discussion
1000h Break
1030h VA51B-05 Crustal Slab Metamorphism, Intraslab
Earthquakes, and Arc Volcanism: *S H Kirby,
E R Engdahl, R Denlinger
1050h VA51B-06 Frequency-Dependent Propagation of Regional
Body Waves and the Nature of Subducted Crust
at 100-150 km Depths Beneath Alaska: G A
Abers, G Sarker
1110h VA51B-07 The Nature of the Seismic Events in the
Nazca Slab Between 70 and 120 km Depth - A
Natural Hydraulic Phenomenon?: G Asch, *P
Giese, F Graeber, A Rudloff, K Wylegalla
1130h VA51B-08 Seismotectonics of the Subduction Zone Near
Nicaragua: Z Hernandez, K Atakan, *J
Havskov
1150h Discussion
VA51C EC:Arena Fri 0830h
V2 Seafloor Volcanism - Posters
Presiding: J Karsten, Univ of Hawaii; T Shibata, Okayama Univ
0830h VA51C-01 POSTER Anomalous Magnetic Field of
Submarine Volcanoes of the Kuril Island Arc:
*V A Rashidov
0830h VA51C-02 POSTER Compositional Variability of Venting
Fluids From Seafloor Hydrothermal
Manifestations of the Kurile-Kamchatka Arc:
*A B Osipenko
0830h VA51C-03 POSTER Recent Volcanic Eruptions Between
17-19~Lo~KS on the EPR: J M Auzende, J Sinton,
V Ballu, R Batiza, D Bideau, M H Cormier, Y
Fouquet, P Geistdoerfer, Y Lagabrielle, P
Spadea
0830h VA51C-04 POSTER Isotopic and Geochemical Mantle
Boundary Coincident With Dueling Propagation
on the East Pacific Rise Near 20.7~Lo~KS: *S M
Smaglik, J M Sinton, J J Mahoney
0830h VA51C-05 POSTER Structure and Petrology of a Tethyan
Ophiolite in the Ankara Melange (Ankara
Province), Turkey: *A Tankut, Y Dilek, A P
Onen
0830h VA51C-06 POSTER Submarine Dome Volcanism, Ponza,
Italy: Preliminary Observations: *R A F Cas,
C L Moore, C Scutter
0830h VA51C-07 POSTER The Effect of Volcanoes on Rifting: *B
van Wyk de Vries, O Merle
0830h VA51C-08 POSTER Extensive Volcanism Near Easter
Seamount Chain: D F Naar, Z J Liu, Y
Rappaport, R Hagen, R Hey, P Johnson, F
Martinez, J Korenaga
0830h VA51C-09 POSTER Deepening of the Axial Magma Chamber
on the Southern East Pacific Rise Toward the
Garret Fracture Zone: *M Tolstoy, A J Harding,
J A Orcutt
0830h VA51C-10 POSTER A Straightness Mechanism for MORs: A
New View of Ocean Genesis and Evolution: *M F
Osmaston
0830h VA51C-11 POSTER Ancient Near-Axis Seamounts in the
Indian Ocean: *R Mukhopadhyay
VA51D SRC:Room 1 Fri 0830h
V2 Seafloor Volcanism
Presiding: M Perfit, Univ of Florida; J L Cheminee, IPGP Paris
0830h VA51D-01 Magnetotelluric Soundings Over Axial
Seamount and Southern Reykjanes Ridge: *A
White, G Heinson, S Constable
0845h VA51D-02 Crustal Structure and Tectonic Lineations
Around Easter Island and GETU Seamount
(Nazca Plate): J J Danobeitia, J P Canales, J
Gallart, N Vidal, J Diaz, R Carbonell, D Naar,
G A Dehghani, J Francheteau, M Farran, S Pou,
E Vera
0900h VA51D-03 Application of SP Techniques in Hydrothermal
Fields: *R Nolasco, P Tarits, P Watremez
0915h VA51D-04 Stable Isotopes and Temporal Variability of
Mid-ocean Ridge Hydrothermal Systems: *W C
Shanks, J K Bohlke, R R Seal, M E Berndt
0930h VA51D-05 Hydrothermal Heat Flux at Mid-ocean Ridges:
*Y J Chen
0945h VA51D-06 Laboratory Models of Two Different Growth
Mechanisms of "Black Smoker" Chimneys: *J S
Turner
1000h Break
1030h VA51D-07 Biogeographic Patterns of Hot Vent Faunas
and the History of Mid-Ocean Ridges: V
Tunnicliffe, *C M R Fowler
1045h VA51D-08 Lava Effusion Rates, Eruption Frequencies,
and Eruption Durations Along Mid-ocean Ridges:
*T K P Gregg, J H Fink
1100h VA51D-09 Along-Axis Shift of Volcanic and
Hydrothermal Activity Within a Single Rift
Segment (East Pacific Rise, 21.5~Lo~KS): *S G
Krasnov, I M Poroshina, G A Cherkashev
1115h VA51D-10 Volcanologic, Hydrothermal, Petrologic, and
Geochemical Investigations of the East
Pacific Rise: 9~Lo~K17'N-9~Lo~K54'N: *M R
Perfit, M C Smith, D J Fornari, M H Edwards,
R M Haymon
1130h VA51D-11 Recent Advances in U-Series Dating of
Magmatic Processes at Ocean Ridges: Results
From 9-10~Lo~KN East Pacific Rise (EPR): *S J
Goldstein, M R Perfit, R Batiza, D J Fornari,
M T Murrell
1145h VA51D-12 How Does the Mantle Melt? Constraints on
MORB Petrogenesis From the Uranium Series:
*C C Lundstrom, Q Williams, J B Gill, M R
Perfit
VA52A D WRD:Auditorium Fri 1330h
VJS2 Subduction Zone Processes at 25-200 km Depth (joint
with ILP,S)
Presiding: C Manning, UCLA
1330h VA52A-01 Slab-Mantle Chemical Exchanges Between 40
and 250 km: The Makeup of Slab Fluids and
the Role of the Wedge: *J G Ryan, G Bebout, A
Hochstaedter, J Morris
1350h VA52A-02 Mechanical and Metasomatic Mixing in a
High-T, Subduction-Related Melange -
Insights Into the Structural and Geochemical
Evolution of the Slab-Mantle Interface: *G E
Bebout
1410h VA52A-03 Silica Metasomatism in Subduction Zones:
Examples From the Catalina Schist and the
Mariana Forearc: *C E Manning
1430h VA52A-04 Partitioning of Trace Elements Between
Slab-Derived Trondhjemitic-Tonalitic Melts
and Refractory Eclogite Residue: An Ion
Microprobe Study: *R P Rapp, N Shimizu
1450h Discussion
1500h Break
1530h VA52A-05 Subduction Zone Magmatism: Mantle Processes
at Depths to 2900 km: *Y Tatsumi, R Arai, T
Kogiso
1550h VA52A-06 Evolution of the Upper Mantle in Subduction
Zones: Coupled Convection and Melt Migration
Models: *C Kincaid, M Spiegelman, I S Sacks
1610h VA52A-07 Volcanism Associated With Two Subducting
Slabs Beneath Central Japan: *S Noguchi
1630h VA52A-08 Does Calc-Alkaline and Shoshonitic Volcanism
Imply a Coeval Subduction Setting? Lessons
From the Aeolian Islands, S. Tyrrhenian Sea:
G M Crisci, S Esperanca
1650h Discussion
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