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Book Chapter

Eurasian orogens and Arctic tectonics: an overview

By
V. Pease
V. Pease
Department of Geological Sciences, Stockholm University, 104 05 Stockholm, Sweden (e-mail: vicky.pease@geo.su.se)
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Published:
January 01, 2011

Abstract

This review summarizes our current understanding of the major Eurasian orogens in the context of Arctic tectonics: the Ediacaran Timanides, the middle Palaeozoic Caledonides, the late Palaeozoic Uralides and the Mesozoic fold belts of Taimyr and Verkhoyansk. Controversies and problems are associated with the: (i) regional extent, timing, and nature of deformation associated with Ediacaran Timanian orogenesis; (ii) northward extent of Caledonian deformation; (iii) continuation of Permo-Carboniferous Uralian orogenesis on Novaya Zemlya and understanding this deformation in Taimyr; (iv) timing, location and style of deformation associated with Mesozoic deformation in Taimyr and Verkhoyansk, and its relationship to the opening of the Amerasia Basin; (v) original size of the Arctic Alaska–Chukotka microplate (AACM) and the nature of its boundaries, including the timing and amount of extension of the AACM and the location of the South Anyui Suture; and (vi) age and nature of pre-Okhotsk–Chukotka volcano-plutonic belt basement across eastern Russia and western Alaska and its relationship to the development of the Canada Basin/Amerasia Basin. The resolution of these controversies is needed to test hypotheses for the tectonic development of the Amerasia Basin, in particular, and for understanding the tectonic development of the Circum-Arctic as a whole.

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Contents

Geological Society, London, Memoirs

Arctic Petroleum Geology

Anthony M. Spencer
Anthony M. Spencer
Statoil, Norway
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Ashton F. Embry
Ashton F. Embry
Geological Survey of Canada, Canada
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Donald L. Gautier
Donald L. Gautier
United States Geological Survey, USA
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Antonina V. Stoupakova
Antonina V. Stoupakova
Moscow State University, Russia
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Kai Sørensen
Kai Sørensen
Geological Survey of Denmark and Greenland
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Geological Society of London
Volume
35
ISBN electronic:
9781862394100
Publication date:
January 01, 2011

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