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Science 4 April 1969:
Vol. 164. no. 3875, pp. 63 - 66
DOI: 10.1126/science.164.3875.63
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Articles

Cllsworth Mountains: Position in West Antarctica ue to Sea-Floor Spreading

James M. Schopf 1

1 U. S. Geological Survey, Ohio State University, Columbus 43210

Similarities of middle anld upper Paleozoic deposits of the Ellsworth fountains with those of the Pensacola, Horlick, and other Transtarctic mountains indicate that all these ranges may have had a related geologic history. A native explanation is now suggested which involves sea-floor spreading atnd anslocationi of the Ellsworth crutstal block from its originilal location adjacent to the East Antarctic Shield. Accordingly, the islands of West Antarctica may differ it origin and the Transantarctic Mountains of East Antarctica may represent one margin of an ancient rift.


THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
Tectonic history of the Ellsworth Mountains, West Antarctica: Reconciling a Gondwana enigma.
M. L. Curtis (2001)
Geological Society of America Bulletin 113, 939-958
   Abstract »    Full Text »    PDF »
Development of kinematic partitioning within a pure-shear dominated dextral transpression zone: the southern Ellsworth Mountains, Antarctica.
M. L. Curtis (1998)
Geological Society, London, Special Publications 135, 289-306
   Abstract »    PDF »
Weddell Sea tectonics and Gondwana break-up: an introduction.
E. C. King, R. A. Livermore, and B. C. Storey (1996)
Geological Society, London, Special Publications 108, 1-10
   Abstract »    PDF »
A review of geological constraints on the pre-break-up position of the Ellsworth Mountains within Gondwana: implications for Weddell Sea evolution.
M. L. Curtis and B. C. Storey (1996)
Geological Society, London, Special Publications 108, 11-30
   Abstract »    PDF »
Summary of palaeomagnetic results from West Antarctica: implications for the tectonic evolution of the Pacific margin of Gondwana during the Mesozoic.
V. Divenere, D. V. Kent, and I. W. D. Dalziel (1996)
Geological Society, London, Special Publications 108, 31-43
   Abstract »    PDF »
Geodynamic evolution of the Antarctic Peninsula during Mesozoic times and its bearing on Weddell Sea history.
B. C. Storey, A. P. M. Vaughan, and I. L. Millar (1996)
Geological Society, London, Special Publications 108, 87-103
   Abstract »    PDF »
Early Cretaceous Uplift in the Ellsworth Mountains of West Antarctica.
P. G. Fitzgerald, P. G. FITZGERALD, and E. STUMP (1991)
Science 254, 92-94
   Abstract »    PDF »
A palaeomagnetic study of Jurassic rocks from the Antarctic Peninsula and its implications.
S. K. Longshaw and D. H. Griffiths (1983)
Journal of the Geological Society 140, 945-954
   Abstract »    PDF »


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