Mapping the Surficial Geology of the Arctic Ocean
Surficial geologic mapping of the Arctic Ocean was undertaken to provide a basis for understanding different geologic environments in this polar setting. Mapping was based on data acquired from numerous icebreaker and submarine missions to the polar region. The intent was to create a geologic layer...
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ftuninhampshire:oai:scholars.unh.edu:ccom-1049 2023-05-15T14:38:15+02:00 Mapping the Surficial Geology of the Arctic Ocean Mosher, D. C. Jakobsson, Martin Gebhardt, C. Mayer, Larry A. 2014-09-01T07:00:00Z https://scholars.unh.edu/ccom/50 unknown University of New Hampshire Scholars' Repository https://scholars.unh.edu/ccom/50 Center for Coastal and Ocean Mapping text 2014 ftuninhampshire 2023-01-30T21:31:34Z Surficial geologic mapping of the Arctic Ocean was undertaken to provide a basis for understanding different geologic environments in this polar setting. Mapping was based on data acquired from numerous icebreaker and submarine missions to the polar region. The intent was to create a geologic layer overlying the International Bathymetric Chart of the Arctic Ocean. Analysis of subbottom profiler and multibeam bathymetric data in conjunction with sediment cores and the regional morphology rendered from the IBCAO data were used to map different surficial geologic units. For a relatively small ocean basin, the Arctic Ocean reveals a plethora of margin and basin types reflecting both the complex tectonic origins of the basin and its diverse sedimentation history. Broad and narrow shelves were subjected to a complex ice-margin history in the Quaternary, and bear the sediment types and morphological features as a result. Some shelfal areas are heavily influenced by rivers. Extensive deep water ridges and plateaus are isolated from coastal input and have a long history of hemipelagic deposition. An active spreading ridge and regions of recent volcanism have volcani-clastic and heavily altered sediments. Some regions of the Arctic Ocean are proposed to have been influenced by bolide impact. The flanks of the basins demonstrate complex sedimentation patterns resulting from mass failures and ice-margin outflow. The deep basins of the Arctic Ocean are filled with turbidites resulting from these mass-flows and are interbedded with hemiplegic deposits. Text Arctic Arctic Ocean University of New Hampshire: Scholars Repository Arctic Arctic Ocean |
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University of New Hampshire: Scholars Repository |
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description |
Surficial geologic mapping of the Arctic Ocean was undertaken to provide a basis for understanding different geologic environments in this polar setting. Mapping was based on data acquired from numerous icebreaker and submarine missions to the polar region. The intent was to create a geologic layer overlying the International Bathymetric Chart of the Arctic Ocean. Analysis of subbottom profiler and multibeam bathymetric data in conjunction with sediment cores and the regional morphology rendered from the IBCAO data were used to map different surficial geologic units. For a relatively small ocean basin, the Arctic Ocean reveals a plethora of margin and basin types reflecting both the complex tectonic origins of the basin and its diverse sedimentation history. Broad and narrow shelves were subjected to a complex ice-margin history in the Quaternary, and bear the sediment types and morphological features as a result. Some shelfal areas are heavily influenced by rivers. Extensive deep water ridges and plateaus are isolated from coastal input and have a long history of hemipelagic deposition. An active spreading ridge and regions of recent volcanism have volcani-clastic and heavily altered sediments. Some regions of the Arctic Ocean are proposed to have been influenced by bolide impact. The flanks of the basins demonstrate complex sedimentation patterns resulting from mass failures and ice-margin outflow. The deep basins of the Arctic Ocean are filled with turbidites resulting from these mass-flows and are interbedded with hemiplegic deposits. |
format |
Text |
author |
Mosher, D. C. Jakobsson, Martin Gebhardt, C. Mayer, Larry A. |
spellingShingle |
Mosher, D. C. Jakobsson, Martin Gebhardt, C. Mayer, Larry A. Mapping the Surficial Geology of the Arctic Ocean |
author_facet |
Mosher, D. C. Jakobsson, Martin Gebhardt, C. Mayer, Larry A. |
author_sort |
Mosher, D. C. |
title |
Mapping the Surficial Geology of the Arctic Ocean |
title_short |
Mapping the Surficial Geology of the Arctic Ocean |
title_full |
Mapping the Surficial Geology of the Arctic Ocean |
title_fullStr |
Mapping the Surficial Geology of the Arctic Ocean |
title_full_unstemmed |
Mapping the Surficial Geology of the Arctic Ocean |
title_sort |
mapping the surficial geology of the arctic ocean |
publisher |
University of New Hampshire Scholars' Repository |
publishDate |
2014 |
url |
https://scholars.unh.edu/ccom/50 |
geographic |
Arctic Arctic Ocean |
geographic_facet |
Arctic Arctic Ocean |
genre |
Arctic Arctic Ocean |
genre_facet |
Arctic Arctic Ocean |
op_source |
Center for Coastal and Ocean Mapping |
op_relation |
https://scholars.unh.edu/ccom/50 |
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1766310365181771776 |