2015
DOI: 10.1002/2015jb012307
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Geophysical evidence for the extent of crustal types and the type of margin along a profile in the northeastern Baffin Bay

Abstract: Investigating the crust of northern Baffin Bay provides valuable indications for the still debated evolution of this area. The crust of the southern Melville Bay is examined based on wide‐angle seismic and gravity data. The resulting P wave velocity, density, and geological models give insights into the crustal structure. A stretched and rifted continental crust underneath southern Melville Bay is up to 30 km thick, with crustal velocities ranging between 5.5 and 6.9 km/s. The deep Melville Bay Graben contains… Show more

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Cited by 14 publications
(6 citation statements)
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“…2, top left) with depths of 10 km and more in the southern Canada Basin/Beaufort-MacKenzie Sea (Stephenson et al, 1994b;Sippel et al, 2013), Chukchi Basin (Drachev, 2011) and in the eastern Barents Sea (Drachev et al, 2010;Minakov et al, 2012;Klitzke et al, 2015). Other areas with locally substantial sedimentary thickness >5 km are observed in Baffin Bay (Funck et al, 2012;Suckro et al, 2012;Altenbernd et al, 2015), the Sverdrup Basin (Embry, 1991;Embry & Beauchamp, 2008;Oakey & Stephenson, 2008;, the Lincoln Sea (Jackson et al, 2010;Funck et al, 2011), the western Barents Sea (Ritzmann et al, 2007;Klitzke et al, 2015), the Kara Sea (Drachev et al, 2010) and the Russian Arctic shelf (Drachev & Shkarubo, this volume;Drachev, 2011).…”
Section: Crust and Sedimentary Basinsmentioning
confidence: 99%
“…2, top left) with depths of 10 km and more in the southern Canada Basin/Beaufort-MacKenzie Sea (Stephenson et al, 1994b;Sippel et al, 2013), Chukchi Basin (Drachev, 2011) and in the eastern Barents Sea (Drachev et al, 2010;Minakov et al, 2012;Klitzke et al, 2015). Other areas with locally substantial sedimentary thickness >5 km are observed in Baffin Bay (Funck et al, 2012;Suckro et al, 2012;Altenbernd et al, 2015), the Sverdrup Basin (Embry, 1991;Embry & Beauchamp, 2008;Oakey & Stephenson, 2008;, the Lincoln Sea (Jackson et al, 2010;Funck et al, 2011), the western Barents Sea (Ritzmann et al, 2007;Klitzke et al, 2015), the Kara Sea (Drachev et al, 2010) and the Russian Arctic shelf (Drachev & Shkarubo, this volume;Drachev, 2011).…”
Section: Crust and Sedimentary Basinsmentioning
confidence: 99%
“…A mantle plume (Morgan 1971) has been proposed as the causal mechanism for continental breakup and magmatism between Greenland and Canada (e.g. Storey et al 1998;Courtillot et al 1999;Nielsen et al 2002;Funck et al 2007;Gerlings et al 2009;Altenbernd et al 2015). It is postulated that initial rifting was relatively amagmatic (Nielsen et al 2002;Altenbernd et al 2015) and that the arrival of a mantle plume at ca.…”
Section: The Mantle Plume Hypothesis and Breakup Between Greenland And Canadamentioning
confidence: 99%
“…1). However, modern wide-angle seismic datasets reveal that the southern Baffin Bay is underlain by 6 to 9 km thick oceanic crust (Funck et al, 2012;Suckro et al, 2012), and the northwestern Baffin Bay is underlain by 3.5 to 6 km oceanic crust (Altenbernd et al, 2014(Altenbernd et al, , 2015. Regional crustal structure derived from 3D gravity inversion modeling shows a good correlation with the seismic reflection data and supports the occurrence of oceanic crust in the center of Baffin Bay (Welford and Dehler, 2016).…”
Section: Accepted Manuscriptmentioning
confidence: 82%