Late Paleozoic seismic sequence stratigraphy and paleogeography of the paleo-Loppa High in the Norwegian Barents Sea
The paleo-Loppa High in the SW Barents Sea is a ridge structure, which developed during the late Paleozoic when the earliest phase of the Atlantic rifting between Greenland and Norway occurred. The southwest of the Barents Sea, located at the northern margin of Pangaea during the Carboniferous and P...
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Online Access: | http://hdl.handle.net/11392/2394424 https://doi.org/10.1016/j.marpetgeo.2018.05.038 https://www.sciencedirect.com/science/article/pii/S0264817218302423 http://www.sciencedirect.com/science/journal/02648172 |
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ftunivferrarair:oai:iris.unife.it:11392/2394424 2024-02-11T10:02:26+01:00 Late Paleozoic seismic sequence stratigraphy and paleogeography of the paleo-Loppa High in the Norwegian Barents Sea Jhosnella Sayago Matteo Di Lucia Maria Mutti Andrea Sitta Axum Cotti Gianluca Frijia Sayago, Jhosnella Di Lucia, Matteo Mutti, Maria Sitta, Andrea Cotti, Axum Frijia, Gianluca 2018 STAMPA http://hdl.handle.net/11392/2394424 https://doi.org/10.1016/j.marpetgeo.2018.05.038 https://www.sciencedirect.com/science/article/pii/S0264817218302423 http://www.sciencedirect.com/science/journal/02648172 eng eng info:eu-repo/semantics/altIdentifier/wos/WOS:000449128000015 volume:97 firstpage:192 lastpage:208 numberofpages:17 journal:MARINE AND PETROLEUM GEOLOGY http://hdl.handle.net/11392/2394424 doi:10.1016/j.marpetgeo.2018.05.038 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-85049757350 https://www.sciencedirect.com/science/article/pii/S0264817218302423 http://www.sciencedirect.com/science/journal/02648172 info:eu-repo/semantics/closedAccess Oceanography Geophysic Geology Economic Geology Stratigraphy info:eu-repo/semantics/article 2018 ftunivferrarair https://doi.org/10.1016/j.marpetgeo.2018.05.038 2024-01-24T17:42:35Z The paleo-Loppa High in the SW Barents Sea is a ridge structure, which developed during the late Paleozoic when the earliest phase of the Atlantic rifting between Greenland and Norway occurred. The southwest of the Barents Sea, located at the northern margin of Pangaea during the Carboniferous and Permian, was characterized by a structural style of half-graben geometries. The northward drift of the northern Pangaea triggered changes in regional climatic conditions that are reflected in the preserved sedimentary deposits. 2D/3D seismic combined with well and core data were used to define depositional seismic sequences and to understand the stratigraphic evolution of the paleo-Loppa High during the late Paleozoic. Based on the geometry of the defined seismic sequences and the character of observed sedimentary facies, a paleogeographic reconstruction of the key stages in the paleo-Loppa High evolution is also proposed and discussed in relation to local tectonic, global sea-level oscillations, and climatic changes. A total of seven seismic sequences, ranging from clastic-dominated to transitional clastic-carbonate sedimentation followed by an evaporitic drawdown phase, then shifting to carbonate-dominated sequences and finally capped by silica- and chert-dominated deposits, have been defined and represent the infill evolution of the paleo-Loppa High. Tectonics processes associated with the rifting are the principal controls in the 3-D morphology of the defined sequences. Sea-level fluctuations and climate changes have modified the biotic evolution and were responsible of the small-scale features inside each sequence. A renewed interest, in the study of the late Paleozoic sedimentary deposits of the paleo-Loppa High, has been manifested due to the recent discoveries of hydrocarbons in the Gohta and Alta prospects. Article in Journal/Newspaper Barents Sea Greenland Loppa Università degli Studi di Ferrara: CINECA IRIS Alta Barents Sea Greenland Loppa ENVELOPE(22.351,22.351,70.240,70.240) Norway Marine and Petroleum Geology 97 192 208 |
institution |
Open Polar |
collection |
Università degli Studi di Ferrara: CINECA IRIS |
op_collection_id |
ftunivferrarair |
language |
English |
topic |
Oceanography Geophysic Geology Economic Geology Stratigraphy |
spellingShingle |
Oceanography Geophysic Geology Economic Geology Stratigraphy Jhosnella Sayago Matteo Di Lucia Maria Mutti Andrea Sitta Axum Cotti Gianluca Frijia Late Paleozoic seismic sequence stratigraphy and paleogeography of the paleo-Loppa High in the Norwegian Barents Sea |
topic_facet |
Oceanography Geophysic Geology Economic Geology Stratigraphy |
description |
The paleo-Loppa High in the SW Barents Sea is a ridge structure, which developed during the late Paleozoic when the earliest phase of the Atlantic rifting between Greenland and Norway occurred. The southwest of the Barents Sea, located at the northern margin of Pangaea during the Carboniferous and Permian, was characterized by a structural style of half-graben geometries. The northward drift of the northern Pangaea triggered changes in regional climatic conditions that are reflected in the preserved sedimentary deposits. 2D/3D seismic combined with well and core data were used to define depositional seismic sequences and to understand the stratigraphic evolution of the paleo-Loppa High during the late Paleozoic. Based on the geometry of the defined seismic sequences and the character of observed sedimentary facies, a paleogeographic reconstruction of the key stages in the paleo-Loppa High evolution is also proposed and discussed in relation to local tectonic, global sea-level oscillations, and climatic changes. A total of seven seismic sequences, ranging from clastic-dominated to transitional clastic-carbonate sedimentation followed by an evaporitic drawdown phase, then shifting to carbonate-dominated sequences and finally capped by silica- and chert-dominated deposits, have been defined and represent the infill evolution of the paleo-Loppa High. Tectonics processes associated with the rifting are the principal controls in the 3-D morphology of the defined sequences. Sea-level fluctuations and climate changes have modified the biotic evolution and were responsible of the small-scale features inside each sequence. A renewed interest, in the study of the late Paleozoic sedimentary deposits of the paleo-Loppa High, has been manifested due to the recent discoveries of hydrocarbons in the Gohta and Alta prospects. |
author2 |
Sayago, Jhosnella Di Lucia, Matteo Mutti, Maria Sitta, Andrea Cotti, Axum Frijia, Gianluca |
format |
Article in Journal/Newspaper |
author |
Jhosnella Sayago Matteo Di Lucia Maria Mutti Andrea Sitta Axum Cotti Gianluca Frijia |
author_facet |
Jhosnella Sayago Matteo Di Lucia Maria Mutti Andrea Sitta Axum Cotti Gianluca Frijia |
author_sort |
Jhosnella Sayago |
title |
Late Paleozoic seismic sequence stratigraphy and paleogeography of the paleo-Loppa High in the Norwegian Barents Sea |
title_short |
Late Paleozoic seismic sequence stratigraphy and paleogeography of the paleo-Loppa High in the Norwegian Barents Sea |
title_full |
Late Paleozoic seismic sequence stratigraphy and paleogeography of the paleo-Loppa High in the Norwegian Barents Sea |
title_fullStr |
Late Paleozoic seismic sequence stratigraphy and paleogeography of the paleo-Loppa High in the Norwegian Barents Sea |
title_full_unstemmed |
Late Paleozoic seismic sequence stratigraphy and paleogeography of the paleo-Loppa High in the Norwegian Barents Sea |
title_sort |
late paleozoic seismic sequence stratigraphy and paleogeography of the paleo-loppa high in the norwegian barents sea |
publishDate |
2018 |
url |
http://hdl.handle.net/11392/2394424 https://doi.org/10.1016/j.marpetgeo.2018.05.038 https://www.sciencedirect.com/science/article/pii/S0264817218302423 http://www.sciencedirect.com/science/journal/02648172 |
long_lat |
ENVELOPE(22.351,22.351,70.240,70.240) |
geographic |
Alta Barents Sea Greenland Loppa Norway |
geographic_facet |
Alta Barents Sea Greenland Loppa Norway |
genre |
Barents Sea Greenland Loppa |
genre_facet |
Barents Sea Greenland Loppa |
op_relation |
info:eu-repo/semantics/altIdentifier/wos/WOS:000449128000015 volume:97 firstpage:192 lastpage:208 numberofpages:17 journal:MARINE AND PETROLEUM GEOLOGY http://hdl.handle.net/11392/2394424 doi:10.1016/j.marpetgeo.2018.05.038 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-85049757350 https://www.sciencedirect.com/science/article/pii/S0264817218302423 http://www.sciencedirect.com/science/journal/02648172 |
op_rights |
info:eu-repo/semantics/closedAccess |
op_doi |
https://doi.org/10.1016/j.marpetgeo.2018.05.038 |
container_title |
Marine and Petroleum Geology |
container_volume |
97 |
container_start_page |
192 |
op_container_end_page |
208 |
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1790598382054539264 |