Christine Siddoway

She is currently working on Ice sheet erosional Interaction with Hot geotherm (ICI-Hot) in West Antarctica, International Ocean Discovery Program (IODP) 379, 2019-2021 Amundsen Sea – West Antarctic Ice Sheet History, Cryogenian intracontinental sedimentary records for Rodinia, and Geodesign at Colorado College – International Geodesign Collaborative. . A recently completed project is Collaborative Research: A systems approach to understanding the Ross Ocean and ice Shelf Environment, and Tectonic setting Through Aerogeophysical surveys and modeling (ROSETTA-ICE).

Siddoway co-founded the ANTscape project in 2009 which stimulated research in the reconstruction of bedrock topography of Antarctica for key intervals of the geologic past – an important parameter for understanding the origins and evolution of the Antarctic ice sheet.

Siddoway was elected a Fellow of the Geological Society of America in 2009 and received the Antarctica Service Medal in 2003.

Siddoway has served on committees of the Geological Society of America, including as Associate Editor for the GSA Bulletin. She has also served twice on the Organizing Committee for the International Symposium on Antarctic Earth Sciences (1995, 2007) and on the Transantarctic Mountain Science Planning Committee (2015).

Siddoway's career includes multiple research seasons in the Antarctic since 1989. The central issue was when and how mid crustal rocks found here became exhumed. Her work demonstrated a role for doming and diapir intrusion, within a regional context of right lateral strike slip—leading to a model of rapid exhumation via transtension rather than orthogonal extension as in a core complex – that had been the working model that proved to be incorrect. She continued to refine the fundamentals of the process of gneiss dome emplacement authoring a special publication on that topic with the Fosdick range as a type model. An outgrowth of the early work explored the Fosdick Mountains gneiss dome as a repository of information about crustal differentiation leading to stabilization of the landmass of Marie Byrd Land within the Antarctic continent.

Siddoway completed her undergraduate education at Carleton College in 1984. Siddoway received a master's degree in 1987 from the University of Arizona, then attended the University of California, Santa Barbara where she earned her Ph.D in 1995. Her dissertation focused on the only known gneiss dome in Antarctica, in the Fosdick Mountains, Marie Byrd Land. As graduate student, she began the first of a series of studies in the Fosdick Metamorphic Complex in Marie Byrd Land with her PhD advisor and project principal investigator Bruce Luyendyk.