Petroleum geology of the Upper Jurassic – Lower Cretaceous of East and North-East Greenland: Blokelv-1 borehole, Jameson Land Basin: Burial and exhumation history of the Jameson Land Basin, East Greenland, estimated from thermochronological data from the Blokelv-1 core (including Appendix)
Apatite fission-track analysis (AFTA) data in two Upper Jurassic core samples from the 231 m deep Blokelv-1 borehole, Jameson Land, East Greenland, combined with vitrinite reflectance data and regional AFTA data, define three palaeo-thermal episodes. We interpret localised early Eocene (55– 50 Ma) p...
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Geological Survey of Denmark and Greenland
2018
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ftdoajarticles:oai:doaj.org/article:fee1a898aa934676918975f36e9e4b8e 2023-05-15T16:03:29+02:00 Petroleum geology of the Upper Jurassic – Lower Cretaceous of East and North-East Greenland: Blokelv-1 borehole, Jameson Land Basin: Burial and exhumation history of the Jameson Land Basin, East Greenland, estimated from thermochronological data from the Blokelv-1 core (including Appendix) Paul F. Green Peter Japsen 2018-12-01T00:00:00Z https://doaj.org/article/fee1a898aa934676918975f36e9e4b8e EN eng Geological Survey of Denmark and Greenland https://eng.geus.dk/media/20460/nr42_p133-147.pdf https://doaj.org/toc/1604-8156 https://doaj.org/toc/1904-4666 1604-8156 1904-4666 https://doaj.org/article/fee1a898aa934676918975f36e9e4b8e Geological Survey of Denmark and Greenland Bulletin, Vol 42, Pp 133-147 (2018) East Greenland Jameson Land Upper Jurassic apatite fission-track analysis burial exhumation Geology QE1-996.5 Geophysics. Cosmic physics QC801-809 article 2018 ftdoajarticles 2022-12-30T23:32:30Z Apatite fission-track analysis (AFTA) data in two Upper Jurassic core samples from the 231 m deep Blokelv-1 borehole, Jameson Land, East Greenland, combined with vitrinite reflectance data and regional AFTA data, define three palaeo-thermal episodes. We interpret localised early Eocene (55– 50 Ma) palaeotemperatures as representing localised early Eocene heating related to intrusive activity whereas we interpret late Eocene (40–35 Ma) and late Miocene (c. 10 Ma) palaeotemperatures as representing deeper burial followed by successive episodes of exhumation. For a palaeogeothermal gradient of 30°C/km and likely palaeo-surface temperatures, the late Eocene palaeotemperatures require that the Upper Jurassic marine section in the borehole was buried below a 2750 m thick cover of Upper Jurassic – Eocene rocks prior to the onset of late Eocene exhumation. As these sediments are now near outcrop at c. 200 m above sea level, they have been uplifted by at least 3 km since maximum burial during post-rift thermal subsidence. The results are consistent with estimates of rock uplift on Milne Land since the late Eocene and with interpretation of Ocean Drilling Program (ODP) data off South-East Greenland suggesting that mid-Cenozoic uplift of the margin triggered the marked influx of coarse clastic turbidites during the late Oligocene above a middle Eocene to upper Oligocene hiatus. Article in Journal/Newspaper East Greenland Greenland Milne Land Geological Survey of Denmark and Greenland Bulletin Directory of Open Access Journals: DOAJ Articles Greenland Jameson Land ENVELOPE(-23.500,-23.500,71.167,71.167) Milne Land ENVELOPE(-26.750,-26.750,70.683,70.683) |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
East Greenland Jameson Land Upper Jurassic apatite fission-track analysis burial exhumation Geology QE1-996.5 Geophysics. Cosmic physics QC801-809 |
spellingShingle |
East Greenland Jameson Land Upper Jurassic apatite fission-track analysis burial exhumation Geology QE1-996.5 Geophysics. Cosmic physics QC801-809 Paul F. Green Peter Japsen Petroleum geology of the Upper Jurassic – Lower Cretaceous of East and North-East Greenland: Blokelv-1 borehole, Jameson Land Basin: Burial and exhumation history of the Jameson Land Basin, East Greenland, estimated from thermochronological data from the Blokelv-1 core (including Appendix) |
topic_facet |
East Greenland Jameson Land Upper Jurassic apatite fission-track analysis burial exhumation Geology QE1-996.5 Geophysics. Cosmic physics QC801-809 |
description |
Apatite fission-track analysis (AFTA) data in two Upper Jurassic core samples from the 231 m deep Blokelv-1 borehole, Jameson Land, East Greenland, combined with vitrinite reflectance data and regional AFTA data, define three palaeo-thermal episodes. We interpret localised early Eocene (55– 50 Ma) palaeotemperatures as representing localised early Eocene heating related to intrusive activity whereas we interpret late Eocene (40–35 Ma) and late Miocene (c. 10 Ma) palaeotemperatures as representing deeper burial followed by successive episodes of exhumation. For a palaeogeothermal gradient of 30°C/km and likely palaeo-surface temperatures, the late Eocene palaeotemperatures require that the Upper Jurassic marine section in the borehole was buried below a 2750 m thick cover of Upper Jurassic – Eocene rocks prior to the onset of late Eocene exhumation. As these sediments are now near outcrop at c. 200 m above sea level, they have been uplifted by at least 3 km since maximum burial during post-rift thermal subsidence. The results are consistent with estimates of rock uplift on Milne Land since the late Eocene and with interpretation of Ocean Drilling Program (ODP) data off South-East Greenland suggesting that mid-Cenozoic uplift of the margin triggered the marked influx of coarse clastic turbidites during the late Oligocene above a middle Eocene to upper Oligocene hiatus. |
format |
Article in Journal/Newspaper |
author |
Paul F. Green Peter Japsen |
author_facet |
Paul F. Green Peter Japsen |
author_sort |
Paul F. Green |
title |
Petroleum geology of the Upper Jurassic – Lower Cretaceous of East and North-East Greenland: Blokelv-1 borehole, Jameson Land Basin: Burial and exhumation history of the Jameson Land Basin, East Greenland, estimated from thermochronological data from the Blokelv-1 core (including Appendix) |
title_short |
Petroleum geology of the Upper Jurassic – Lower Cretaceous of East and North-East Greenland: Blokelv-1 borehole, Jameson Land Basin: Burial and exhumation history of the Jameson Land Basin, East Greenland, estimated from thermochronological data from the Blokelv-1 core (including Appendix) |
title_full |
Petroleum geology of the Upper Jurassic – Lower Cretaceous of East and North-East Greenland: Blokelv-1 borehole, Jameson Land Basin: Burial and exhumation history of the Jameson Land Basin, East Greenland, estimated from thermochronological data from the Blokelv-1 core (including Appendix) |
title_fullStr |
Petroleum geology of the Upper Jurassic – Lower Cretaceous of East and North-East Greenland: Blokelv-1 borehole, Jameson Land Basin: Burial and exhumation history of the Jameson Land Basin, East Greenland, estimated from thermochronological data from the Blokelv-1 core (including Appendix) |
title_full_unstemmed |
Petroleum geology of the Upper Jurassic – Lower Cretaceous of East and North-East Greenland: Blokelv-1 borehole, Jameson Land Basin: Burial and exhumation history of the Jameson Land Basin, East Greenland, estimated from thermochronological data from the Blokelv-1 core (including Appendix) |
title_sort |
petroleum geology of the upper jurassic – lower cretaceous of east and north-east greenland: blokelv-1 borehole, jameson land basin: burial and exhumation history of the jameson land basin, east greenland, estimated from thermochronological data from the blokelv-1 core (including appendix) |
publisher |
Geological Survey of Denmark and Greenland |
publishDate |
2018 |
url |
https://doaj.org/article/fee1a898aa934676918975f36e9e4b8e |
long_lat |
ENVELOPE(-23.500,-23.500,71.167,71.167) ENVELOPE(-26.750,-26.750,70.683,70.683) |
geographic |
Greenland Jameson Land Milne Land |
geographic_facet |
Greenland Jameson Land Milne Land |
genre |
East Greenland Greenland Milne Land Geological Survey of Denmark and Greenland Bulletin |
genre_facet |
East Greenland Greenland Milne Land Geological Survey of Denmark and Greenland Bulletin |
op_source |
Geological Survey of Denmark and Greenland Bulletin, Vol 42, Pp 133-147 (2018) |
op_relation |
https://eng.geus.dk/media/20460/nr42_p133-147.pdf https://doaj.org/toc/1604-8156 https://doaj.org/toc/1904-4666 1604-8156 1904-4666 https://doaj.org/article/fee1a898aa934676918975f36e9e4b8e |
_version_ |
1766399164699115520 |