Combined crustal-geological cross-section of Ellesmere Island
Ellesmere Island, in Canada’s Arctic, consists of a series of ~SW-NE trending tectonic provinces, the crustal structure and geological expression of which represent a combination of interplate, accretionary orogenesis in the Palaeozoic and, most recently, intraplate deformation in the Cenozoic (Eure...
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ftuniaarhuspubl:oai:pure.atira.dk:publications/d30890a1-90ae-454f-acd3-e70ded0f9c32 2023-11-12T04:12:18+01:00 Combined crustal-geological cross-section of Ellesmere Island Stephenson, Randell Alexander Schiffer, Christian Oakey, Gordon 2014-10-22 https://pure.au.dk/portal/da/publications/combined-crustalgeological-crosssection-of-ellesmere-island(d30890a1-90ae-454f-acd3-e70ded0f9c32).html https://gsa.confex.com/gsa/2014AM/webprogram/Paper246028.html eng eng https://pure.au.dk/portal/da/publications/combined-crustalgeological-crosssection-of-ellesmere-island(d30890a1-90ae-454f-acd3-e70ded0f9c32).html info:eu-repo/semantics/restrictedAccess Stephenson , R A , Schiffer , C & Oakey , G 2014 , ' Combined crustal-geological cross-section of Ellesmere Island ' , GSA 2014 Annual Meeting , Vancouver , Canada , 19/11/2014 - 22/11/2014 . < https://gsa.confex.com/gsa/2014AM/webprogram/Paper246028.html > Crustal Strucutre Arctic Canada Geology Geophysics conferenceObject 2014 ftuniaarhuspubl 2023-11-01T23:58:45Z Ellesmere Island, in Canada’s Arctic, consists of a series of ~SW-NE trending tectonic provinces, the crustal structure and geological expression of which represent a combination of interplate, accretionary orogenesis in the Palaeozoic and, most recently, intraplate deformation in the Cenozoic (Eurekan “Orogeny”). An almost complete absence of information about the crustal or lithosphere structure of Ellesmere Island has been addressed by the acquisition of teleseismic data between 2010 and 2012 on a passive seismological array called ELLITE (“Ellesmere Island Teleseismic Experiment”). The ELLITE array consisted of seven broadband stations, deployed for two years on a 520 km long, N-S orientated profile and was logistically supported by the GSC (Canada) and SEIS-UK. Extracted Receiver Functions (RFs) and a resulting composite two-dimensional crustal scale cross-section of Ellesmere Island are reported in detail in another presentation at this symposium (Schiffer et al.). Moho depth, a number of intracrustal horizons and sedimentary thicknesses can be inferred. Meanwhile, geological mapping on Ellesmere Island in the framework of BGR’s (Germany) CASE (“Circum-Arctic Structural Events”) programme resulted in a regional geological cross-section spanning Ellesmere Island from Hansen Point (NW) to the Bache Peninsula (SE). This cross-section, based on the excellent surface exposure afforded in this region, provides a model of the structure of the upper crust to a depth of about 10 km. Although the crustal structure and geological cross-sections are not co-incident, they both cross the same major crustal terranes comprising the geology of Ellesmere Island, through the accretionary and Eurekan overprinted terranes to the passive continental margin of Laurentia in the south. Here, the cross-sections have been integrated to produce a single, combined crustal-geological 2-D model of Ellesmere Island with the aim of illuminating the relationships between crustal architecture and geology as expressed at the surface of and ... Conference Object Arctic Bache Peninsula Ellesmere Island Aarhus University: Research Arctic Bache Peninsula ENVELOPE(-75.589,-75.589,79.173,79.173) Canada Ellesmere Island Hansen Point ENVELOPE(-36.683,-36.683,-54.133,-54.133) |
institution |
Open Polar |
collection |
Aarhus University: Research |
op_collection_id |
ftuniaarhuspubl |
language |
English |
topic |
Crustal Strucutre Arctic Canada Geology Geophysics |
spellingShingle |
Crustal Strucutre Arctic Canada Geology Geophysics Stephenson, Randell Alexander Schiffer, Christian Oakey, Gordon Combined crustal-geological cross-section of Ellesmere Island |
topic_facet |
Crustal Strucutre Arctic Canada Geology Geophysics |
description |
Ellesmere Island, in Canada’s Arctic, consists of a series of ~SW-NE trending tectonic provinces, the crustal structure and geological expression of which represent a combination of interplate, accretionary orogenesis in the Palaeozoic and, most recently, intraplate deformation in the Cenozoic (Eurekan “Orogeny”). An almost complete absence of information about the crustal or lithosphere structure of Ellesmere Island has been addressed by the acquisition of teleseismic data between 2010 and 2012 on a passive seismological array called ELLITE (“Ellesmere Island Teleseismic Experiment”). The ELLITE array consisted of seven broadband stations, deployed for two years on a 520 km long, N-S orientated profile and was logistically supported by the GSC (Canada) and SEIS-UK. Extracted Receiver Functions (RFs) and a resulting composite two-dimensional crustal scale cross-section of Ellesmere Island are reported in detail in another presentation at this symposium (Schiffer et al.). Moho depth, a number of intracrustal horizons and sedimentary thicknesses can be inferred. Meanwhile, geological mapping on Ellesmere Island in the framework of BGR’s (Germany) CASE (“Circum-Arctic Structural Events”) programme resulted in a regional geological cross-section spanning Ellesmere Island from Hansen Point (NW) to the Bache Peninsula (SE). This cross-section, based on the excellent surface exposure afforded in this region, provides a model of the structure of the upper crust to a depth of about 10 km. Although the crustal structure and geological cross-sections are not co-incident, they both cross the same major crustal terranes comprising the geology of Ellesmere Island, through the accretionary and Eurekan overprinted terranes to the passive continental margin of Laurentia in the south. Here, the cross-sections have been integrated to produce a single, combined crustal-geological 2-D model of Ellesmere Island with the aim of illuminating the relationships between crustal architecture and geology as expressed at the surface of and ... |
format |
Conference Object |
author |
Stephenson, Randell Alexander Schiffer, Christian Oakey, Gordon |
author_facet |
Stephenson, Randell Alexander Schiffer, Christian Oakey, Gordon |
author_sort |
Stephenson, Randell Alexander |
title |
Combined crustal-geological cross-section of Ellesmere Island |
title_short |
Combined crustal-geological cross-section of Ellesmere Island |
title_full |
Combined crustal-geological cross-section of Ellesmere Island |
title_fullStr |
Combined crustal-geological cross-section of Ellesmere Island |
title_full_unstemmed |
Combined crustal-geological cross-section of Ellesmere Island |
title_sort |
combined crustal-geological cross-section of ellesmere island |
publishDate |
2014 |
url |
https://pure.au.dk/portal/da/publications/combined-crustalgeological-crosssection-of-ellesmere-island(d30890a1-90ae-454f-acd3-e70ded0f9c32).html https://gsa.confex.com/gsa/2014AM/webprogram/Paper246028.html |
long_lat |
ENVELOPE(-75.589,-75.589,79.173,79.173) ENVELOPE(-36.683,-36.683,-54.133,-54.133) |
geographic |
Arctic Bache Peninsula Canada Ellesmere Island Hansen Point |
geographic_facet |
Arctic Bache Peninsula Canada Ellesmere Island Hansen Point |
genre |
Arctic Bache Peninsula Ellesmere Island |
genre_facet |
Arctic Bache Peninsula Ellesmere Island |
op_source |
Stephenson , R A , Schiffer , C & Oakey , G 2014 , ' Combined crustal-geological cross-section of Ellesmere Island ' , GSA 2014 Annual Meeting , Vancouver , Canada , 19/11/2014 - 22/11/2014 . < https://gsa.confex.com/gsa/2014AM/webprogram/Paper246028.html > |
op_relation |
https://pure.au.dk/portal/da/publications/combined-crustalgeological-crosssection-of-ellesmere-island(d30890a1-90ae-454f-acd3-e70ded0f9c32).html |
op_rights |
info:eu-repo/semantics/restrictedAccess |
_version_ |
1782330906288062464 |