Introduction to Circum-Arctic Structural Events: Tectonic Evolution of the Arctic Margins and Trans-Arctic Links with Adjacent Orogens
Karsten Piepjohn, Justin V. Strauss, Lutz Reinhardt, William C. McClelland, "Introduction to Circum-Arctic Structural Events: Tectonic Evolution of the Arctic Margins and Trans-Arctic Links with Adjacent Orogens", Circum-Arctic Structural Events: Tectonic Evolution of the Arctic Margins and Trans-Arctic Links with Adjacent Orogens, Karsten Piepjohn, Justin V. Strauss, Lutz Reinhardt, William C. McClelland
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The circum-Arctic region has received considerable attention over the past several decades with vigorous debate focused on topics such as mechanisms for opening of the Eurasian and Amerasian basins, the importance of plume-related magmatism in the development of the Arctic Ocean, and tectonic models for ancient terrane translation along the Arctic margins. Public and political interest in the Arctic has also peaked around controversy regarding resource development and the establishment of firm political boundaries under the United Nations Convention on the Law of the Sea (UNCLOS). The CASE program (Circum-Arctic Structural Events) is an international polar research effort organized and led by the Bundesanstalt für Geowissenschaften und Rohstoffe (BGR), Germany, to facilitate land-based geological research. The program entered its 25th year of circum-Arctic research in 2017 and in recognition of this anniversary, we have assembled a collaborative publication that highlights progress made under the CASE initiative to advance the understanding of Arctic geology (Fig. 1). This Geological Society of America (GSA) Special Paper presents recent results from 18 major field expeditions organized, funded, and led by the BGR but involving a large number of international geoscientists from a broad spectrum of disciplines (Fig. 2).
The CASE program was initiated in 1988 by Dr. Franz Tessensohn (Estrada et al., 2009; Tessensohn et al., 2012) under the name “Correlation of Alpine Structural Events in Spitsbergen and North Greenland.” After two pre-site surveys in cooperation with the University of Münster in 1988 and 1991, the first BGR expeditions were carried out in Spitsbergen in 1992 (CASE 1) and North Greenland in 1994 (CASE 2)….