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Science 4 October 1991:
Vol. 254. no. 5028, pp. 92 - 94
DOI: 10.1126/science.254.5028.92
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Articles

Early Cretaceous Uplift in the Ellsworth Mountains of West Antarctica

PAUL G. FITZGERALD 1 and EDMUND STUMP 1

1 Department of Geology, Arizona State University, Tempe, AZ 85287

Apatite fission-track analysis of samples covering a 4.2-kilometer vertical section from the western flank of Vinson Massif, Antarctica's highest mountain, indicates that the Ellsworth Mountains were uplifted by 4 kilometers or more during the Early Cretaceous following the initial separation of East and West Gondwana and accompanying the opening of the Weddell Sea. Relief of at least 1.8 kilometers has persisted in the Ellsworth Mountains since the Early Cretaceous, and a maximum of 3 kilometers of uplift has occurred since that time.

Submitted on June 3, 1991
Accepted on August 6, 1991


THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
Tectonic history of the Ellsworth Mountains, West Antarctica: Reconciling a Gondwana enigma.
M. L. Curtis (2001)
GSA Bulletin 113, 939-958
   Abstract »    Full Text »    PDF »
Mantle plumes and Antarctica-New Zealand rifting: evidence from mid-Cretaceous mafic dykes.
B. C. STOREY, P. T. LEAT, S. D. WEAVER, R. J. PANKHURST, J. D. BRADSHAW, and S. KELLEY (1999)
Journal of the Geological Society 156, 659-671
   Abstract »    PDF »


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Science. ISSN 0036-8075 (print), 1095-9203 (online)