Arctic lithosphere; a review

Online Access: Get full text
doi: 10.1016/j.tecto.2014.05.033
Author(s): Pease, V.; Drachev, S.; Stephenson, R.; Zhang, X.
Author Affiliation(s): Primary:
Stockholm University, Department of Geological Sciences, Stockholm, Sweden
Other:
ExxonMobil Internationa, United Kingdom
University of Aberdeen, United Kingdom
Volume Title: Tectonophysics
Source: Tectonophysics, Vol.628, p.1-25. Publisher: Elsevier, Amsterdam, Netherlands. ISSN: 0040-1951 CODEN: TCTOAM
Note: In English. 215 refs.; illus., incl. geol. sketch maps
Summary: This article reviews the characteristics of Arctic lithosphere and the principal tectonic events which have shaped it. The current state-of-knowledge associated with the crust, crustal-scale discontinuities, and their ages, as well as knowledge of the lithosphere as a whole from geophysical data, permits the division of Arctic lithosphere into discrete domains. Arctic continental lithosphere is diverse in age, composition, and structure. It has been affected by at least two periods of thermal overprinting associated with large volumes of magmatism, once in the Permo-Triassic and again in the Aptian. In addition, it was attenuated as the result of at least five phases of rifting (in the late Devonian-early Carboniferous, Permo-Triassic, Jurassic, Early Cretaceous, and Late Cretaceous-Cenozoic). Older phases of consolidation are associated with continental lithosphere and occurred through a series of continent-continent collisions in the Paleozoic. Jurassic and Cretaceous extensional phases are related to the dismembering of Pangea and Eurasia, and were concentrated in the Norway-Greenland and Canadian-Alaskan Arctic regions. Large areas of submarine, hyperextended continental (?) lithosphere developed in parts of the Amerasia Basin. After continental breakup and the accretion of new oceanic lithosphere, the Eurasia and Canada basins were formed. Abstract Copyright (2014) Elsevier, B.V.
Year of Publication: 2014
Research Program: IODP Integrated Ocean Drilling Program
Key Words: 18 Geophysics, Solid-Earth; Alaska; Arctic Ocean; Arctic region; Asia; Baltica; Basement; Basement tectonics; Basin analysis; Canada; Canada Basin; Cenozoic; Chronostratigraphy; Chukchi Sea; Continental lithosphere; Cretaceous; Crust; Devonian; Eurasian Plate; Europe; Geophysical methods; Geophysical surveys; Greenland; Integrated Ocean Drilling Program; Laptev Sea; Lithosphere; Lomonosov Ridge; Magmatism; Makarov Basin; Mapping; Mendeleyev Ridge; Mesozoic; Metamorphism; Mid-Arctic Ocean Ridge; Mid-ocean ridges; North America; Norway; Ocean floors; Oceanic lithosphere; Paleogeography; Paleozoic; Petroleum; Petroleum exploration; Petrology; Plate tectonics; Podvodnikov Basin; Scandinavia; Seismic methods; Surveys; Tectonics; Tertiary; United States; Western Europe
Coordinates: N690000 N780000 E0500000 E0300000
Record ID: 2014067940
Copyright Information: GeoRef, Copyright 2019 American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands