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Seismological evidence for a fossil subduction zone in the East Greenland Caledonides

2014; Geological Society of America; Volume: 42; Issue: 4 Linguagem: Inglês

10.1130/g35244.1

1943-2682

Christian Schiffer, Niels Balling, Bo Holm Jacobsen, Randell Stephenson, Søren B. Nielsen,

earthquake and tectonic studies

Research Article| April 01, 2014 Seismological evidence for a fossil subduction zone in the East Greenland Caledonides Christian Schiffer; Christian Schiffer 1Department of Geoscience, Aarhus University, Høegh Guldbergs Gade 2, 8000 Aarhus, Denmark Search for other works by this author on: GSW Google Scholar Niels Balling; Niels Balling 1Department of Geoscience, Aarhus University, Høegh Guldbergs Gade 2, 8000 Aarhus, Denmark Search for other works by this author on: GSW Google Scholar Bo H. Jacobsen; Bo H. Jacobsen 1Department of Geoscience, Aarhus University, Høegh Guldbergs Gade 2, 8000 Aarhus, Denmark Search for other works by this author on: GSW Google Scholar Randell A. Stephenson; Randell A. Stephenson 1Department of Geoscience, Aarhus University, Høegh Guldbergs Gade 2, 8000 Aarhus, Denmark2Geology and Petroleum Geology, University of Aberdeen, Meston Building, Aberdeen, AB24 3UE, Scotland Search for other works by this author on: GSW Google Scholar Søren B. Nielsen Søren B. Nielsen 1Department of Geoscience, Aarhus University, Høegh Guldbergs Gade 2, 8000 Aarhus, Denmark Search for other works by this author on: GSW Google Scholar Author and Article Information Christian Schiffer 1Department of Geoscience, Aarhus University, Høegh Guldbergs Gade 2, 8000 Aarhus, Denmark Niels Balling 1Department of Geoscience, Aarhus University, Høegh Guldbergs Gade 2, 8000 Aarhus, Denmark Bo H. Jacobsen 1Department of Geoscience, Aarhus University, Høegh Guldbergs Gade 2, 8000 Aarhus, Denmark Randell A. Stephenson 1Department of Geoscience, Aarhus University, Høegh Guldbergs Gade 2, 8000 Aarhus, Denmark2Geology and Petroleum Geology, University of Aberdeen, Meston Building, Aberdeen, AB24 3UE, Scotland Søren B. Nielsen 1Department of Geoscience, Aarhus University, Høegh Guldbergs Gade 2, 8000 Aarhus, Denmark Publisher: Geological Society of America Received: 29 Oct 2013 Revision Received: 08 Jan 2014 Accepted: 15 Jan 2014 First Online: 09 Mar 2017 Online ISSN: 1943-2682 Print ISSN: 0091-7613 © 2014 Geological Society of America Geology (2014) 42 (4): 311–314. https://doi.org/10.1130/G35244.1 Article history Received: 29 Oct 2013 Revision Received: 08 Jan 2014 Accepted: 15 Jan 2014 First Online: 09 Mar 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn Email Permissions Search Site Citation Christian Schiffer, Niels Balling, Bo H. Jacobsen, Randell A. Stephenson, Søren B. Nielsen; Seismological evidence for a fossil subduction zone in the East Greenland Caledonides. Geology 2014;; 42 (4): 311–314. doi: https://doi.org/10.1130/G35244.1 Download citation file: Ris (Zotero) Refmanager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentBy SocietyGeology Search Advanced Search Abstract The postorogenic collapse of the early Paleozoic Caledonian orogeny is well documented; however, several different plate tectonic models exist for the convergent phase involving closure of the Iapetus Ocean and the collision of Laurentia and Baltica. Receiver function analysis of 11 broadband seismometers along a 270 km transect in the East Greenland Caledonides reveals the existence of an east-dipping high velocity slab. Numerical modeling demonstrates that relict subducted and eclogitized crust is a plausible explanation. Thus, eastward subduction preceded subsequent west-dipping subduction during the formation of the East Greenland and Scandinavian Caledonides. This is a key constraint for understanding the Caledonian and continental margin evolution in the North Atlantic realm. You do not have access to this content, please speak to your institutional administrator if you feel you should have access.