Influence of Quaternary glaciations on subsurface temperatures, pore pressures, rock properties and petroleum systems in the onshore northeastern Netherlands
Abstract Pleistocene glacial stages were implemented into a 3D basin and petroleum systems model of the northeastern Netherlands to address the influence of low surface temperatures and the mechanical loading of ice sheets on the subsurface. Two ice sheet thickness scenarios were used based on publi...
Published in: | Netherlands Journal of Geosciences |
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Language: | English |
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Cambridge University Press (CUP)
2022
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Online Access: | http://dx.doi.org/10.1017/njg.2022.6 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0016774622000063 |
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crcambridgeupr:10.1017/njg.2022.6 2024-10-20T14:09:29+00:00 Influence of Quaternary glaciations on subsurface temperatures, pore pressures, rock properties and petroleum systems in the onshore northeastern Netherlands Amberg, Sebastian Sachse, Victoria Littke, Ralf Back, Stefan 2022 http://dx.doi.org/10.1017/njg.2022.6 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0016774622000063 en eng Cambridge University Press (CUP) http://creativecommons.org/licenses/by/4.0/ Netherlands Journal of Geosciences volume 101 ISSN 0016-7746 1573-9708 journal-article 2022 crcambridgeupr https://doi.org/10.1017/njg.2022.6 2024-10-02T04:01:16Z Abstract Pleistocene glacial stages were implemented into a 3D basin and petroleum systems model of the northeastern Netherlands to address the influence of low surface temperatures and the mechanical loading of ice sheets on the subsurface. Two ice sheet thickness scenarios were used based on published data. Overall, Quaternary glacial stages have a substantial impact on the temperature and pressure distribution in the subsurface. Subsurface temperatures are significantly reduced during glacial stages, leading to lowered present-day temperatures and a low geothermal gradient in the shallow subsurface. In deeply buried sedimentary formations, pressures build up with every glacial advance resulting in overpressures at the present day. Glacial stages do not directly influence the petroleum generation of petroleum source rocks in the area, but high pressures during loading might have impacted petroleum expulsion of the early mature Coevorden Formation. Hydrocarbon accumulations in the Lower Saxony Basin were simulated to investigate the possible effects of mechanical ice loading and unloading on hydrocarbon migration. A loss of Coevorden Formation-sourced hydrocarbons to the surface was calculated in the Lower Saxony Basin during the glacial stages, indicating an influence of glacial loading on the Mesozoic petroleum system. Article in Journal/Newspaper Ice Sheet Cambridge University Press Netherlands Journal of Geosciences 101 |
institution |
Open Polar |
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Cambridge University Press |
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crcambridgeupr |
language |
English |
description |
Abstract Pleistocene glacial stages were implemented into a 3D basin and petroleum systems model of the northeastern Netherlands to address the influence of low surface temperatures and the mechanical loading of ice sheets on the subsurface. Two ice sheet thickness scenarios were used based on published data. Overall, Quaternary glacial stages have a substantial impact on the temperature and pressure distribution in the subsurface. Subsurface temperatures are significantly reduced during glacial stages, leading to lowered present-day temperatures and a low geothermal gradient in the shallow subsurface. In deeply buried sedimentary formations, pressures build up with every glacial advance resulting in overpressures at the present day. Glacial stages do not directly influence the petroleum generation of petroleum source rocks in the area, but high pressures during loading might have impacted petroleum expulsion of the early mature Coevorden Formation. Hydrocarbon accumulations in the Lower Saxony Basin were simulated to investigate the possible effects of mechanical ice loading and unloading on hydrocarbon migration. A loss of Coevorden Formation-sourced hydrocarbons to the surface was calculated in the Lower Saxony Basin during the glacial stages, indicating an influence of glacial loading on the Mesozoic petroleum system. |
format |
Article in Journal/Newspaper |
author |
Amberg, Sebastian Sachse, Victoria Littke, Ralf Back, Stefan |
spellingShingle |
Amberg, Sebastian Sachse, Victoria Littke, Ralf Back, Stefan Influence of Quaternary glaciations on subsurface temperatures, pore pressures, rock properties and petroleum systems in the onshore northeastern Netherlands |
author_facet |
Amberg, Sebastian Sachse, Victoria Littke, Ralf Back, Stefan |
author_sort |
Amberg, Sebastian |
title |
Influence of Quaternary glaciations on subsurface temperatures, pore pressures, rock properties and petroleum systems in the onshore northeastern Netherlands |
title_short |
Influence of Quaternary glaciations on subsurface temperatures, pore pressures, rock properties and petroleum systems in the onshore northeastern Netherlands |
title_full |
Influence of Quaternary glaciations on subsurface temperatures, pore pressures, rock properties and petroleum systems in the onshore northeastern Netherlands |
title_fullStr |
Influence of Quaternary glaciations on subsurface temperatures, pore pressures, rock properties and petroleum systems in the onshore northeastern Netherlands |
title_full_unstemmed |
Influence of Quaternary glaciations on subsurface temperatures, pore pressures, rock properties and petroleum systems in the onshore northeastern Netherlands |
title_sort |
influence of quaternary glaciations on subsurface temperatures, pore pressures, rock properties and petroleum systems in the onshore northeastern netherlands |
publisher |
Cambridge University Press (CUP) |
publishDate |
2022 |
url |
http://dx.doi.org/10.1017/njg.2022.6 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0016774622000063 |
genre |
Ice Sheet |
genre_facet |
Ice Sheet |
op_source |
Netherlands Journal of Geosciences volume 101 ISSN 0016-7746 1573-9708 |
op_rights |
http://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.1017/njg.2022.6 |
container_title |
Netherlands Journal of Geosciences |
container_volume |
101 |
_version_ |
1813449004328943616 |