Antarctica Research

Current Research 

Christine Siddoway’s current focus is a collaborative Antarctic Integrated Systems Science  project, “Uncovering the Ross Ocean and Ice Shelf Environment and Tectonic setting Through Aerogeophysical Surveys and Modeling (ROSETTA-ICE)” that explores the bedrock geology, oceanography, glaciology and geophysics of the Ross Ice Shelf. The Shelf acts as a buttress for the West Antarctic Ice Sheet, slowing or preventing Ice Sheet advance toward the Southern Ocean. ROSETTA-ICE researchers from Columbia University, Oregon State University, Scripps Institute of Oceanography, and Colorado College come together to characterize the dynamic ice-ocean system for the intact Ice Shelf, in order to assess the present and future consequences of warming ocean and atmosphere. Christine’s geological expertise will contribute to the collective task of mapping the geology and geological faults of the seabed beneath the Ross Ice Shelf, including rock types, centers of volcanism and sources of geothermal heat.

Participation in U.S. Antarctic Program : Siddoway’s  work in Antarctica addresses the tectonic development of the active margin of East Gondwana, the geological evolution of Marie Byrd Land within the context of Mesozoic Gondwana, the development of the West Antarctic rift system, and the tectonic processes that led to breakup of the active margin of the Gondwana supercontinent in Cretaceous time.

    • 1989 Tectonics of the Scotia Arc, International Geological Congress Field Trip to Tierra del Fuego and Antarctic Peninsula, led by Ian W.D. Dalziel and based off of R/V Polar Duke.
    • 1989-1991 Geological and Geophysical Studies in the Ford Ranges of Marie Byrd Land, West Antarctica, Ph.D. research supported by NSF-OPP 8817615 to B. Luyendyk and D. Kimbrough, University of California – Santa Barbara.
    • 1998-2001 Air-Ground Study of Tectonics at the Boundary Between the Eastern Ross Embayment and Western Marie Byrd Land, Antarctica: Basement Geology and Structure. NSF-OPP 9615282
    • 2004-07 Gneiss dome architecture: Investigation of form and process in the Fosdick Mountains, West Antarctica, NSF-OPP 0338279
    • 2010-2011 Research at Undergraduate Institutions: Development of an on-line GIS repository of geological data from the Ford Ranges, Marie Byrd Land, and application to Cenozoic paleogeography reconstruction, NSF-OPP-0944777
    • 2010-13  Polyphase orogenesis and crustal differentiation in West Antarctica, NSF- OPP-0944600. This collaboration involved colleagues from University of Maryland and Curtin Technol. University in Perth. Using exemplary migmatite-granite rock associations in the Fosdick Mountains, we explored the fundamental process of continental crust formation via metamorphic transformations and rock melting.
    • 2015-2018  ROSETTA-Ice:  Uncovering the Ross Ocean and ice Shelf Environment and Tectonic setting Through Aerogeophysical surveys and modeling of the Ross ICE Shelf, NSF- AISS – 1443497.

 Participation in international research programs in Antarctica 

  • 1992-93 GANOVEX VII, 7th German Antarctic North Victorialand Expedition
  • 1995-96 Programma Nazionale di Ricerche in Antartide, Spedizione X: Lanterman Range (“Camp Jackman”) via Terra Nova Bay station. Collaboration with Carlo Alberto Ricci, Università di Siena, Italy; with funding from NSF-OPP 9702161
  • 2019 IODP379 International Ocean Discovery Expedition 379: Amundsen Sea West Antarctic Ice Sheet History

Links to web resources

Antarctic Master Directory metadata description, Global Change Master Directory

SESAR sample registration via online search routine

 Supported by:

U.S. Antarctic Program

The material at this site is based upon work supported by the National Science Foundation under awards listed above. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the author and do not necessarily reflect the views of the National Science Foundation.    U.S. Antarctic Program