Geodynamics, 05-19-2010: Petrologic and seismic constraints on thermal models of subduction zones

Aug 20, 2012

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Geodynamics, 05-19-2010: Petrologic and seismic constraints on thermal models of subduction zones

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Earth’s Mantle: A View Through Volcanism’s Window

Earth’s Mantle: A View Through Volcanism’s Window. William M. White Dept. of Earth & Atmospheric Sciences Cornell University Ithaca NY USA. Subduction Zones. Mid-ocean ridges. Oceanic Islands/Hot spots. Terrestrial Volcanism. Subduction Zones. Mid-ocean ridges. Oceanic Islands/Hot spots.

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Alistair Webb | Geodynamics Limited

Geothermal Energy in the Hunter Presentation to the Hunter Valley Protection Alliance February 2, 2010. Alistair Webb | Geodynamics Limited. Geodynamics. About the Company, Geodynamics: Is Australia’s leading geothermal energy company;

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Long -lived Thermal constraints Surface area:volume Small - bask Left-right shunt!

Long -lived Thermal constraints Surface area:volume Small - bask Left-right shunt!. Large Size (8’ long leatherback!) Thermal inertia . 37 degree BT in 29 deg water Counter-current exchange of heat in flippers . Most aquatic and sea turtles carnivorous (jellyfish, sponges, molluscs)

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Constraining the composition and thermal state of the Moon from inversion of seismic velocities

Constraining the composition and thermal state of the Moon from inversion of seismic velocities. Oleg Kuskov, Victor Kronrod, Ecaterina Kronrod Vernadsky Institute of Geochemistry. IKI, Moscow, 2011. Reinterpretation of seismic studies.

386 views • 20 slides

Subduction zone magmatism

Subduction zone magmatism. Activity along arcuate volcanic island chains along subduction zones Distinctly different from the mainly basaltic provinces thus far Composition more diverse and silicic Basalt generally occurs in subordinate quantities

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Space remote sensing for urban damage detection mapping and mitigation

EQ at time t 0. OPTICAL pre-seismic. OPTICAL post-seismic. SAR-SLC t 0 +1 post-seismic. SAR-SLC t 0 -1 pre-seismic. SAR-SLC t 0 -2 pre-seismic. Pre-seismic complex coherence Pre-seismic intensity correlation Co-seismic complex coherence Co-seismic intensity correlation Change image.

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General Structural Equations

General Structural Equations. Week 2 #5 Different forms of constraints Introduction for models estimated in multiple groups. Multiple Group Models (Hayduk: “Stacked” models). Constraints on parameters Running separate models in different groups Applying equality constraints across groups.

527 views • 36 slides

NIGERIAN NATIONAL NETWORK OF SEISMIC STATIONS

NIGERIAN NATIONAL NETWORK OF SEISMIC STATIONS. CENTRE FOR GEODESY AND GEODYNAMICS NATIONAL SPACE RESEARCH AND DEVELOPMENT AGENCY FEDERAL MINISTRY OF SCIENCE AND TECHNOLOGY PMB 011, TORO BAUCHI STATE, NIGERIA. Background. Although Nigeria is not located within the

324 views • 15 slides

Thermal and compositional evolution of a three-layer Titan

Thermal and compositional evolution of a three-layer Titan. ?. Michael Bland and William McKinnon. Constraints on Titan’s internal structure. C/MR 2  0.34. Iess et al. 2010. = 1879.8 kg m -3. Jacobson, 2006. Fortes, 2012. Two (of several) possible interior states. Ice. Ice.

217 views • 11 slides

Volcanic Hazards

Volcanic Hazards. Lava or Pyroclasts. Magma. Hotter. T=1,020°C. T=1,100°C. SOLIDUS. T=1,180°C. T=1,210°C. LIQUIDUS. T=1,020°C. Subduction zone. Transform Boundary. ???. Divergent Boundary. Volcanoes occur:. Above subduction zones At divergent boundaries At hot spots.

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Subduction Zone Observatory

Subduction Zone Observatory. An international multi-disciplinary observatory along a major subduction zone plate boundary “ subduction collaboratory ” AGU 2013 SIG. Subduction Zone Observatory. From a UW workshop on seafloor geology in Cascadia, June, 2012. Subduction Zone Observatory.

492 views • 15 slides

Cascadia Subduction Zone Earthquakes and Critical Infrastructure Workshop Edward Perez, FERC

Cascadia Subduction Zone Earthquakes and Critical Infrastructure Workshop Edward Perez, FERC. Background Part 12D Report. Every 5 years. Top-to-bottom review of safety. Accept/Supplement Remedial Action. Safe or not? Seismic Load case Stay up to speed with latest science.

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The causes of a tsunami

The causes of a tsunami. Lo: to be able to explain what causes a tsunami. http://whs.moodledo.co.uk/file.php/1365/EarthSystems/Earth%20Systems/Subduction.swf. From memory sketch and label your own diagram of a destructive plate boundary. 2 types of plate Subduction zones

177 views • 4 slides

An integrated view of subduction zones from geochemistry, seismology, and dynamics

An integrated view of subduction zones from geochemistry, seismology, and dynamics. Reported by Mike Gurnis. Emerging threads from CTO studies of subduction. Observational controls on slab dip, Carl Tape, M. Gurnis, H. Kanamori & M. Simons

411 views • 24 slides

Probabilistic Seismic Hazard Analysis Project

Probabilistic Seismic Hazard Analysis Project. Origins and Objectives. 12-05-2012. BC has all four types of tectonic regions Active Crustal: WNA Stable Continental: CENA Subduction Zones: Cascadia Volcanic: Volcanic Arc/Cascades. >80 dams 18 Extreme Consequence 6 > 10,000 PAR.

630 views • 27 slides

Geodynamics

Geodynamics. Geodynamics is what we often call “modelling”. We use what we know about the physics of how materials behave and interpret our observations in ways that conform to that physics.

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13: SUBDUCTION ZONES Understand kinematics & dynamics of boundary processes

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Petrologic Constraints on Mantle Temperature and Water Content

Petrologic Constraints on Mantle Temperature and Water Content. Marc Hirschmann University of Minnesota. Stixrude&Lithgow-Bertelloni, 2005. Stixrude&Lithgow-Bertelloni, 2005. Oceanic Crust Production Langmuir et al., 1992; Asimow et al., 2001. Trace amounts of H 2 O enhance melting….

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By Alicia Thompson

Subduction Zones of the World: Comparison to the Cascadia Subduction Zone and the Potential for Producing Large-scale Earthquakes. By Alicia Thompson. Outline. Subduction Zone and Large-scale earthquake Tour of subduction zones South American New Zealand Sumatra Nankai

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Geodynamics, 05-19-2010: Petrologic and seismic constraints on thermal models of subduction zones

Geodynamics, 05-19-2010: Petrologic and seismic constraints on thermal models of subduction zones

Presentation Transcript

Earth’s Mantle: A View Through Volcanism’s Window

Alistair Webb | Geodynamics Limited

Long -lived Thermal constraints Surface area:volume Small - bask Left-right shunt!

Constraining the composition and thermal state of the Moon from inversion of seismic velocities

Subduction zone magmatism

Space remote sensing for urban damage detection mapping and mitigation

General Structural Equations

NIGERIAN NATIONAL NETWORK OF SEISMIC STATIONS

Thermal and compositional evolution of a three-layer Titan

Volcanic Hazards

Subduction Zone Observatory

Cascadia Subduction Zone Earthquakes and Critical Infrastructure Workshop Edward Perez, FERC

The causes of a tsunami

An integrated view of subduction zones from geochemistry, seismology, and dynamics

Probabilistic Seismic Hazard Analysis Project

Geodynamics

13: SUBDUCTION ZONES Understand kinematics &amp; dynamics of boundary processes

Petrologic Constraints on Mantle Temperature and Water Content

By Alicia Thompson

13: SUBDUCTION ZONES Understand kinematics & dynamics of boundary processes