Architecture and differential hydrocarbon enrichment of basins under joint constraints of basement nature and regional stresses: A case study of the passive continental margin basins along the East Coast of Canada

The East Coast of Canada presents multiple passive continental margin basins (PCMBs) characterized by significant architectural differences and limited oil and gas discoveries, establishing these basins as the global frontier for hydrocarbon exploration. Limited understanding of the characteristics...

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Main Authors: Zhenrui Bai, Naxin Tian, Gaokui Wu, Yanyang Wang, Kun Tian
Format: Article
Language:English
Published: KeAi Communications Co., Ltd. 2025-06-01
Series:Petroleum
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Online Access:http://www.sciencedirect.com/science/article/pii/S240565612500032X
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author Zhenrui Bai
Naxin Tian
Gaokui Wu
Yanyang Wang
Kun Tian
author_facet Zhenrui Bai
Naxin Tian
Gaokui Wu
Yanyang Wang
Kun Tian
author_sort Zhenrui Bai
collection DOAJ
description The East Coast of Canada presents multiple passive continental margin basins (PCMBs) characterized by significant architectural differences and limited oil and gas discoveries, establishing these basins as the global frontier for hydrocarbon exploration. Limited understanding of the characteristics of basin architectures and their control of hydrocarbon accumulation hinders exploration breakthroughs in these basins. Using magnetic anomaly, seismic, and drilling data, this study conducts integrated geological and geophysical interpretations of the PCMBs. Accordingly, this study reveals that the PCMBs have undergone three evolutionary stages, namely rifting (comprising three episodes), depression, and continental margin, with the synthem of each stage being referred to as rift layer, depression layer, and continental margin layer, respectively. Under the control of transform faults and basement nature, four distinct types of PCMBs have formed: transtensional, transform, gentle-rampy, and volcanic rifted types from south to north. The basins with varying architectures govern the sedimentary filling, the combination of petroleum system elements, and differential hydrocarbon accumulation across three major types of synthems. Furthermore, this study highlights substantial hydrocarbon exploration potentials in the turbidite sandstones within the slope and basin-floor areas of the transtensional and transform types of PCMBs, as well as in the deltaic sandstones within the rift and depression layers of the gentle-rampy type of PCMBs.
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spelling doaj-art-cc3f99a6b203417a9b09f6f59b8a2c5b2025-06-29T04:52:31ZengKeAi Communications Co., Ltd.Petroleum2405-65612025-06-01113277289Architecture and differential hydrocarbon enrichment of basins under joint constraints of basement nature and regional stresses: A case study of the passive continental margin basins along the East Coast of CanadaZhenrui Bai0Naxin Tian1Gaokui Wu2Yanyang Wang3Kun Tian4Petroleum Exploration and Production Research Institute, SINOPEC, Beijing, 102206, ChinaCorresponding author.; Petroleum Exploration and Production Research Institute, SINOPEC, Beijing, 102206, ChinaPetroleum Exploration and Production Research Institute, SINOPEC, Beijing, 102206, ChinaPetroleum Exploration and Production Research Institute, SINOPEC, Beijing, 102206, ChinaPetroleum Exploration and Production Research Institute, SINOPEC, Beijing, 102206, ChinaThe East Coast of Canada presents multiple passive continental margin basins (PCMBs) characterized by significant architectural differences and limited oil and gas discoveries, establishing these basins as the global frontier for hydrocarbon exploration. Limited understanding of the characteristics of basin architectures and their control of hydrocarbon accumulation hinders exploration breakthroughs in these basins. Using magnetic anomaly, seismic, and drilling data, this study conducts integrated geological and geophysical interpretations of the PCMBs. Accordingly, this study reveals that the PCMBs have undergone three evolutionary stages, namely rifting (comprising three episodes), depression, and continental margin, with the synthem of each stage being referred to as rift layer, depression layer, and continental margin layer, respectively. Under the control of transform faults and basement nature, four distinct types of PCMBs have formed: transtensional, transform, gentle-rampy, and volcanic rifted types from south to north. The basins with varying architectures govern the sedimentary filling, the combination of petroleum system elements, and differential hydrocarbon accumulation across three major types of synthems. Furthermore, this study highlights substantial hydrocarbon exploration potentials in the turbidite sandstones within the slope and basin-floor areas of the transtensional and transform types of PCMBs, as well as in the deltaic sandstones within the rift and depression layers of the gentle-rampy type of PCMBs.http://www.sciencedirect.com/science/article/pii/S240565612500032XPassive continental margin basin (PCMB)Basin architectureTectonic evolutionSediment fillHydrocarbon accumulation conditionEast Coast of Canada
spellingShingle Zhenrui Bai
Naxin Tian
Gaokui Wu
Yanyang Wang
Kun Tian
Architecture and differential hydrocarbon enrichment of basins under joint constraints of basement nature and regional stresses: A case study of the passive continental margin basins along the East Coast of Canada
Petroleum
Passive continental margin basin (PCMB)
Basin architecture
Tectonic evolution
Sediment fill
Hydrocarbon accumulation condition
East Coast of Canada
title Architecture and differential hydrocarbon enrichment of basins under joint constraints of basement nature and regional stresses: A case study of the passive continental margin basins along the East Coast of Canada
title_full Architecture and differential hydrocarbon enrichment of basins under joint constraints of basement nature and regional stresses: A case study of the passive continental margin basins along the East Coast of Canada
title_fullStr Architecture and differential hydrocarbon enrichment of basins under joint constraints of basement nature and regional stresses: A case study of the passive continental margin basins along the East Coast of Canada
title_full_unstemmed Architecture and differential hydrocarbon enrichment of basins under joint constraints of basement nature and regional stresses: A case study of the passive continental margin basins along the East Coast of Canada
title_short Architecture and differential hydrocarbon enrichment of basins under joint constraints of basement nature and regional stresses: A case study of the passive continental margin basins along the East Coast of Canada
title_sort architecture and differential hydrocarbon enrichment of basins under joint constraints of basement nature and regional stresses a case study of the passive continental margin basins along the east coast of canada
topic Passive continental margin basin (PCMB)
Basin architecture
Tectonic evolution
Sediment fill
Hydrocarbon accumulation condition
East Coast of Canada
url http://www.sciencedirect.com/science/article/pii/S240565612500032X
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