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ISAES 10 - 2007: Antarctica:
keystone in a changing world

The Program Committee, chaired by Terry Wilson, has developed the themes below.   Topics have been based on active SCAR Geoscience research programs, thematic topics at international meetings in recent years, and input from the Antarctic Earth Science community.   In keeping with SCAR geoscience goals, the main session themes are designed to promote interdisciplinary research and to highlight Antarctica's role in the global Earth system.  Questions and comments are always welcome - please get in touch with Terry by email at:   twilson@mps.ohio-state.edu .


Thematic Sessions

A)  Antarctic Climate Evolution: Global Linkages from Integration of Records in Ice Cores, Geological Cores, Outcrops, and Models

B)  GeoCryoDynamics: Feedbacks and Coupling between the Geosphere, Cryosphere and Climate

C)  Antarctica in the Global Geodynamic System

D)  Antarctic Earth Science in the International Polar Year  

E)  Antarctica's Impact on Global Biosphere Evolution

F)  New Frontiers in Technologies and Polar Databases

G)  General Antarctic Earth Science

 

A)  Antarctic Climate Evolution: Global Linkages from Integration of Records in Ice Cores, Geological Cores, Outcrops, and Models

Overarching Questions:
•  What roles have Antarctica and the Southern Ocean played in global climate?
•    What have been the key triggers for abrupt climate changes from the Snowball Earth to the present?

  1. Antarctica, the Southern Ocean, and Climate Evolution:   Insights from Drilling, Coring and Geophysical Surveys
  2. Climate Records:   Ice Cores and Quaternary Geological Records
  3. Antarctic Climate Evolution from Cretaceous and Tertiary Fossil Floras
  4. Climate Transitions:   Greenhouse-Refrigerator-Freezer
  5. Abrupt Climate Change
  6. The State of Permafrost in A Changing Environment
  7. Instability in Antarctic Ice Sheets and Ice Shelves
  8. Seismic Stratigraphy of the Ross Sea and the Antarctic Margin: Climate Archives and Tectonic History
  9. Teleconnections in the Late Paleozoic World:   Antarctica's Role in Pangea Earth Systems


B)  GeoCryoDynamics: Feedbacks and Coupling between the Geosphere, Cryosphere and Climate

Overarching Questions:
•  How have Antarctic tectonics influenced evolution and mass balance of ice sheets?
•  How are ice sheet dynamics preserved in polar landscapes, isostatic rebound history, and the sedimentary and subglacial record?

  1.  Ice Sheet History and Dynamics: Solid-Earth, Subglacial, Terrestrial and Marine Geological Records
  2. Glaciation, Climate, Surface Processes and Tectonism: The Landscape Record
  3. Active and Ancient Surface Processes
  4. Surface Exposure Dating in Antarctica
  5. Solid Earth Heat Flux: Influence on Ice Dynamics and Geodynamics
  6. Seismicity, 'Glacial Earthquakes', and Crustal Stress:   Influence of Ice Mass Change and Ice Dynamics
  7. Isostatic rebound:   Geodetic measurement and modeling
  8. Mass Balance of Antarctic Ice Sheets: Satellite and In Situ Measurements
  9. Subglacial Hydrologic Systems


C)  Antarctica in the Global Geodynamic System

Overarching Questions:
•  What role has Antarctica played in supercontinent breakup?
•    How does the assembly of the Antarctic continent compare to other major continents?
•  What active processes are affecting the Antarctic plate?

  1. Evolution of Antarctic Lithosphere
  2. Antarctica in Rodinia, Gondwana and Pangea: In honor of the contributions of Campbell Craddock
  3. Supercontinent Breakup History and Processes
  4. Plate Motions and Oceanic Gateways
  5. Antarctic Neotectonics:   Intraplate and Plate Boundary Regimes
  6. Structures and Processes in the Deep Earth: Insights From Antarctica
  7. Magmatic Processes During Supercontinent Breakup
  8. Melting Processes and Volcanism Beneath A Stationary Antarctic Plate


D)  Antarctic Earth Science in the International Polar Year   [topics to be refined as IPY programs crystallize]

  1. Holocene To Modern Antarctic Environments and Global Change
  2. Subglacial Lake Environments
  3. Exploration Beneath the Ice Sheets and Ice Shelve
  4. Geophysical and Geodetic Observations at the Poles
    -Mantle and Core
    -Geomagnetic Field
    -Crustal motions
  1. Polar Education and Outreach Initiatives
  2. History of the IPY and the International Geophysical Year (IGY)


E)  Antarctica's Impact on Global Biosphere Evolution

Overarching Questions:
•  How did life on Earth react to the onset of continental glaciation?
 How extreme is the Antarctic subglacial environment compared to other planets?

  1. Understanding Antarctic Biological Evolution:   molecular, Biogeographic, Glaciological and Geological Studies
  2. Biotic Evolution and Radiation of Life:   Before and after Gondwana Breakup
  3. Evolution of Life in Extreme Polar Environment
    -Cenozoic extinctions of terrestrial and neritic taxa
    -Development of cryospheric microbial communities
    -Character and pace of evolutionary response to polar environmental changes
    -Evolution of sea-ice biota
  4. The Role of the Antarctic circumpolar current and Upwelling Systems in Changing Global Biogeochemical Cycling
  5. Carbon Sequestration Beneath the Antarctic Ice Sheets


F)  New Frontiers in Technologies and Polar Databases

Overarching Questions:
•  What are the cutting edge technologies needed to enable research on new questions in Antarctic geoscience?
•  How can the community emerge from the International Polar year with next-generation access to data?

  1. Polar Databases, Repositories, & Maps
  2. Platforms and Tools for Remote Sensing of the Antarctic environment
  3. Geodetic and Geophysical Observatories: Problems and Progress
  4. Drilling Technologies and Tools For Deep Sampling of the Antarctic Environment
  5. Polar Instrumentation Technologies


G)  General Antarctic Earth Science

 
 
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