Preliminary results of a geophysical study of the East Greenland Caledonides:Receiver Functions map crustal architecture
The present-day topography and crustal structure of the East Greenland Caledonides were intensively influenced by several constructive and destructive processes, including the Caledonian orogeny, the subsequent extensional collapse, continental breakup and fluvial and glacial erosional processes. Al...
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ftuniaarhuspubl:oai:pure.atira.dk:publications/a12778c6-2771-4709-a48b-2987a90a3783 2023-05-15T16:03:30+02:00 Preliminary results of a geophysical study of the East Greenland Caledonides:Receiver Functions map crustal architecture Schiffer, Christian Jacobsen, B. H. Balling, N. Nielsen, S.B. 2012-03-07 application/pdf https://pure.au.dk/portal/da/publications/preliminary-results-of-a-geophysical-study-of-the-east-greenland-caledonides(a12778c6-2771-4709-a48b-2987a90a3783).html https://pure.au.dk/ws/files/44737308/DGG_EGC_RF.pdf eng eng info:eu-repo/semantics/restrictedAccess Schiffer , C , Jacobsen , B H , Balling , N & Nielsen , S B 2012 , ' Preliminary results of a geophysical study of the East Greenland Caledonides : Receiver Functions map crustal architecture ' , DGG Meeting 2012 , Hamburg , Germany , 05/03/2012 - 08/03/2012 . Caledonides East Greenland Receiver Functions conferenceObject 2012 ftuniaarhuspubl 2020-07-18T21:17:09Z The present-day topography and crustal structure of the East Greenland Caledonides were intensively influenced by several constructive and destructive processes, including the Caledonian orogeny, the subsequent extensional collapse, continental breakup and fluvial and glacial erosional processes. Although erosion driven uplift related to fjord formation is a significant mechanism, the average topographic elevation still exceeds 1 km. This apparent longevity of topography remains matter of discussion. In this context the relationship of topography to crustal thickness and isostatic compensation are of central importance. Furthermore, erosion and possible subcrustal mechanisms have to be considered. Possible shallow structures, related to extensional basin formation, a possible lower crustal high velocity layer and the possible presence of a crustal root attract special attention. A first approach to these issues is the interpretation of Receiver Functions in terms of crustal discontinuities and Moho depth. 11 temporary broadband stations (Ella Ø array) were deployed and maintained by Aarhus University for a period of 2 years (2009 - 2011). The profile is approximately 270 km long and crosses the East Greenland Caledonides from the ice sheet to the coastline at about 73°north. The data are of high quality. Initial Receiver Function results are shown and compared with synthetic data, using velocity models from published wide angle seismic studies in the area. Conference Object East Greenland Greenland Ice Sheet Aarhus University: Research Ella Ø ENVELOPE(-25.056,-25.056,72.848,72.848) Greenland |
institution |
Open Polar |
collection |
Aarhus University: Research |
op_collection_id |
ftuniaarhuspubl |
language |
English |
topic |
Caledonides East Greenland Receiver Functions |
spellingShingle |
Caledonides East Greenland Receiver Functions Schiffer, Christian Jacobsen, B. H. Balling, N. Nielsen, S.B. Preliminary results of a geophysical study of the East Greenland Caledonides:Receiver Functions map crustal architecture |
topic_facet |
Caledonides East Greenland Receiver Functions |
description |
The present-day topography and crustal structure of the East Greenland Caledonides were intensively influenced by several constructive and destructive processes, including the Caledonian orogeny, the subsequent extensional collapse, continental breakup and fluvial and glacial erosional processes. Although erosion driven uplift related to fjord formation is a significant mechanism, the average topographic elevation still exceeds 1 km. This apparent longevity of topography remains matter of discussion. In this context the relationship of topography to crustal thickness and isostatic compensation are of central importance. Furthermore, erosion and possible subcrustal mechanisms have to be considered. Possible shallow structures, related to extensional basin formation, a possible lower crustal high velocity layer and the possible presence of a crustal root attract special attention. A first approach to these issues is the interpretation of Receiver Functions in terms of crustal discontinuities and Moho depth. 11 temporary broadband stations (Ella Ø array) were deployed and maintained by Aarhus University for a period of 2 years (2009 - 2011). The profile is approximately 270 km long and crosses the East Greenland Caledonides from the ice sheet to the coastline at about 73°north. The data are of high quality. Initial Receiver Function results are shown and compared with synthetic data, using velocity models from published wide angle seismic studies in the area. |
format |
Conference Object |
author |
Schiffer, Christian Jacobsen, B. H. Balling, N. Nielsen, S.B. |
author_facet |
Schiffer, Christian Jacobsen, B. H. Balling, N. Nielsen, S.B. |
author_sort |
Schiffer, Christian |
title |
Preliminary results of a geophysical study of the East Greenland Caledonides:Receiver Functions map crustal architecture |
title_short |
Preliminary results of a geophysical study of the East Greenland Caledonides:Receiver Functions map crustal architecture |
title_full |
Preliminary results of a geophysical study of the East Greenland Caledonides:Receiver Functions map crustal architecture |
title_fullStr |
Preliminary results of a geophysical study of the East Greenland Caledonides:Receiver Functions map crustal architecture |
title_full_unstemmed |
Preliminary results of a geophysical study of the East Greenland Caledonides:Receiver Functions map crustal architecture |
title_sort |
preliminary results of a geophysical study of the east greenland caledonides:receiver functions map crustal architecture |
publishDate |
2012 |
url |
https://pure.au.dk/portal/da/publications/preliminary-results-of-a-geophysical-study-of-the-east-greenland-caledonides(a12778c6-2771-4709-a48b-2987a90a3783).html https://pure.au.dk/ws/files/44737308/DGG_EGC_RF.pdf |
long_lat |
ENVELOPE(-25.056,-25.056,72.848,72.848) |
geographic |
Ella Ø Greenland |
geographic_facet |
Ella Ø Greenland |
genre |
East Greenland Greenland Ice Sheet |
genre_facet |
East Greenland Greenland Ice Sheet |
op_source |
Schiffer , C , Jacobsen , B H , Balling , N & Nielsen , S B 2012 , ' Preliminary results of a geophysical study of the East Greenland Caledonides : Receiver Functions map crustal architecture ' , DGG Meeting 2012 , Hamburg , Germany , 05/03/2012 - 08/03/2012 . |
op_rights |
info:eu-repo/semantics/restrictedAccess |
_version_ |
1766399188199800832 |