Late Mesozoic magmatism in Svalbard: A review
Late Mesozoic mafic igneous rocks are widespread across the Arctic region, and are collectively referred to as the High Arctic Large Igneous Province (HALIP). In Svalbard the HALIP is represented by the Diabasodden Suite, an extensive system of predominantly basic intrusive doleritic rocks. Associat...
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ftunivnapoliiris:oai:www.iris.unina.it:11588/820162 2024-09-09T18:59:08+00:00 Late Mesozoic magmatism in Svalbard: A review Senger K. Tveranger J. Ogata K. Braathen A. Planke S. Senger, K. Tveranger, J. Ogata, K. Braathen, A. Planke, S. 2014 http://hdl.handle.net/11588/820162 https://doi.org/10.1016/j.earscirev.2014.09.002 eng eng info:eu-repo/semantics/altIdentifier/wos/WOS:000346541400007 volume:139 firstpage:123 lastpage:144 numberofpages:22 journal:EARTH-SCIENCE REVIEWS http://hdl.handle.net/11588/820162 doi:10.1016/j.earscirev.2014.09.002 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-84907778306 Diabase Diabasodden Suite Dolerite HALIP Igneous intrusion Spitsbergen info:eu-repo/semantics/article 2014 ftunivnapoliiris https://doi.org/10.1016/j.earscirev.2014.09.002 2024-06-17T15:19:34Z Late Mesozoic mafic igneous rocks are widespread across the Arctic region, and are collectively referred to as the High Arctic Large Igneous Province (HALIP). In Svalbard the HALIP is represented by the Diabasodden Suite, an extensive system of predominantly basic intrusive doleritic rocks. Associated lava flows are exposed on the far east of the archipelago. Two main igneous centres have been proposed: (1) Central Spitsbergen and (2) the eastern Svalbard dolerite belt, spanning Hinlopenstretet and the islands of Edgeøya and Barentsøya. Offshore seismic and magnetic data suggest a link between the Svalbard and Franz Joseph Land igneous exposures. Intrusions occur predominantly as sills, up to 100. m thick and laterally continuous for up to 30 km. Dykes are present locally, and range in thickness from < 10 m up to 100 m. A compilation of published geochemical data reveals that the vast majority of samples have a basaltic geochemical signature. Comparison to HALIP rocks elsewhere in the Arctic, including paleotectonic reconstructions, suggests that the Diabasodden Suite formed as part of an intra-plate basaltic complex originating from a source near the Alpha Ridge. Apart from Late Mesozoic magmatism, Svalbard has also experienced magmatic activity both before and after the intrusion of the Diabasodden Suite dolerites. These are distinguished on the basis of their geochemical signature and timing. Timing of the Diabasodden Suite magmatism is currently poorly constrained. More than 130 radiometric (Ar-Ar and K-Ar) ages have been published, with a wide range of ages (ca. 75-145 Ma). Modern radiometric dating (U-Pb) on three samples suggests a shorter-lived intrusion pulse at ca. 124.5 Ma (i.e. early Aptian). While much work has been conducted on the Diabasodden Suite in the past, a detailed synthesis of this widespread unit is presently missing. In this contribution we discuss the current knowledge on the Diabasodden Suite, synthesizing and reviewing the past studies as well as pointing out possible future ... Article in Journal/Newspaper alpha ridge Arctic Barentsøya Edgeøya Franz Joseph Land Svalbard Spitsbergen IRIS Università degli Studi di Napoli Federico II Arctic Svalbard Alpha Ridge ENVELOPE(-120.000,-120.000,85.500,85.500) Edgeøya ENVELOPE(22.500,22.500,77.750,77.750) Barentsøya ENVELOPE(21.250,21.250,78.450,78.450) Hinlopenstretet ENVELOPE(20.728,20.728,79.246,79.246) Diabasodden ENVELOPE(16.132,16.132,78.357,78.357) Earth-Science Reviews 139 123 144 |
institution |
Open Polar |
collection |
IRIS Università degli Studi di Napoli Federico II |
op_collection_id |
ftunivnapoliiris |
language |
English |
topic |
Diabase Diabasodden Suite Dolerite HALIP Igneous intrusion Spitsbergen |
spellingShingle |
Diabase Diabasodden Suite Dolerite HALIP Igneous intrusion Spitsbergen Senger K. Tveranger J. Ogata K. Braathen A. Planke S. Late Mesozoic magmatism in Svalbard: A review |
topic_facet |
Diabase Diabasodden Suite Dolerite HALIP Igneous intrusion Spitsbergen |
description |
Late Mesozoic mafic igneous rocks are widespread across the Arctic region, and are collectively referred to as the High Arctic Large Igneous Province (HALIP). In Svalbard the HALIP is represented by the Diabasodden Suite, an extensive system of predominantly basic intrusive doleritic rocks. Associated lava flows are exposed on the far east of the archipelago. Two main igneous centres have been proposed: (1) Central Spitsbergen and (2) the eastern Svalbard dolerite belt, spanning Hinlopenstretet and the islands of Edgeøya and Barentsøya. Offshore seismic and magnetic data suggest a link between the Svalbard and Franz Joseph Land igneous exposures. Intrusions occur predominantly as sills, up to 100. m thick and laterally continuous for up to 30 km. Dykes are present locally, and range in thickness from < 10 m up to 100 m. A compilation of published geochemical data reveals that the vast majority of samples have a basaltic geochemical signature. Comparison to HALIP rocks elsewhere in the Arctic, including paleotectonic reconstructions, suggests that the Diabasodden Suite formed as part of an intra-plate basaltic complex originating from a source near the Alpha Ridge. Apart from Late Mesozoic magmatism, Svalbard has also experienced magmatic activity both before and after the intrusion of the Diabasodden Suite dolerites. These are distinguished on the basis of their geochemical signature and timing. Timing of the Diabasodden Suite magmatism is currently poorly constrained. More than 130 radiometric (Ar-Ar and K-Ar) ages have been published, with a wide range of ages (ca. 75-145 Ma). Modern radiometric dating (U-Pb) on three samples suggests a shorter-lived intrusion pulse at ca. 124.5 Ma (i.e. early Aptian). While much work has been conducted on the Diabasodden Suite in the past, a detailed synthesis of this widespread unit is presently missing. In this contribution we discuss the current knowledge on the Diabasodden Suite, synthesizing and reviewing the past studies as well as pointing out possible future ... |
author2 |
Senger, K. Tveranger, J. Ogata, K. Braathen, A. Planke, S. |
format |
Article in Journal/Newspaper |
author |
Senger K. Tveranger J. Ogata K. Braathen A. Planke S. |
author_facet |
Senger K. Tveranger J. Ogata K. Braathen A. Planke S. |
author_sort |
Senger K. |
title |
Late Mesozoic magmatism in Svalbard: A review |
title_short |
Late Mesozoic magmatism in Svalbard: A review |
title_full |
Late Mesozoic magmatism in Svalbard: A review |
title_fullStr |
Late Mesozoic magmatism in Svalbard: A review |
title_full_unstemmed |
Late Mesozoic magmatism in Svalbard: A review |
title_sort |
late mesozoic magmatism in svalbard: a review |
publishDate |
2014 |
url |
http://hdl.handle.net/11588/820162 https://doi.org/10.1016/j.earscirev.2014.09.002 |
long_lat |
ENVELOPE(-120.000,-120.000,85.500,85.500) ENVELOPE(22.500,22.500,77.750,77.750) ENVELOPE(21.250,21.250,78.450,78.450) ENVELOPE(20.728,20.728,79.246,79.246) ENVELOPE(16.132,16.132,78.357,78.357) |
geographic |
Arctic Svalbard Alpha Ridge Edgeøya Barentsøya Hinlopenstretet Diabasodden |
geographic_facet |
Arctic Svalbard Alpha Ridge Edgeøya Barentsøya Hinlopenstretet Diabasodden |
genre |
alpha ridge Arctic Barentsøya Edgeøya Franz Joseph Land Svalbard Spitsbergen |
genre_facet |
alpha ridge Arctic Barentsøya Edgeøya Franz Joseph Land Svalbard Spitsbergen |
op_relation |
info:eu-repo/semantics/altIdentifier/wos/WOS:000346541400007 volume:139 firstpage:123 lastpage:144 numberofpages:22 journal:EARTH-SCIENCE REVIEWS http://hdl.handle.net/11588/820162 doi:10.1016/j.earscirev.2014.09.002 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-84907778306 |
op_doi |
https://doi.org/10.1016/j.earscirev.2014.09.002 |
container_title |
Earth-Science Reviews |
container_volume |
139 |
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123 |
op_container_end_page |
144 |
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