Direct dating Paleo-fluid flow events in sedimentary basins
Reconstructing fluid evolution history in old sedimentary basins is extremely challenging due to the prolonged evolution, lack of exact age constraints and absence of preserved fluids. By integrating in-situ calcite U–Pb dating, fluid inclusion analysis, measurements of major and trace elements and...
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| Format: | Journal Article |
| Language: | English |
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ELSEVIER
2022
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| Online Access: | http://purl.org/au-research/grants/arc/LE150100013 http://hdl.handle.net/20.500.11937/95553 |
| _version_ | 1848766025167798272 |
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| author | Yang, P. Liu, K. Li, Zhen Rankenburg, Kai McInnes, Brent I.A. Liu, J. Evans, Noreen |
| author_facet | Yang, P. Liu, K. Li, Zhen Rankenburg, Kai McInnes, Brent I.A. Liu, J. Evans, Noreen |
| author_sort | Yang, P. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | Reconstructing fluid evolution history in old sedimentary basins is extremely challenging due to the prolonged evolution, lack of exact age constraints and absence of preserved fluids. By integrating in-situ calcite U–Pb dating, fluid inclusion analysis, measurements of major and trace elements and carbon‑oxygen‑strontium isotopes, and molecular composition analysis of petroleum, we have reconstructed the fluid evolution history during the Carboniferous in an Ordovician deeply-buried carbonate reservoir in the Tarim Basin, China, with unprecedented temporal resolution. Five generations of calcite cementation spanning over 37 m.y. are dated in a single calcite vein with U–Pb ages ranging from ~353 Ma to ~316 Ma. The initial cement was associated with an intrusion of hyper-saline brine, enriched in REEs. This was followed by influx of meteoric water to precipitate the second and third generations of cement, which are characterized by reduced salinity, anomalously high 87Sr/86Sr ratios and extremely low concentration of REEs. The fourth generation of calcite cement was formed in a deep-fluid system accompanied by oil charge as indicated by the presence of bitumen, oil inclusions and low δ13C and 87Sr/86Sr ratios. The fifth generation of cement was precipitated from equilibrated connate water, and has the lowest salinity and a comparable REE signature to the host rock. Oil charge event occurred around 326 Ma. This study demonstrates the effectiveness of combining in-situ calcite U–Pb geochronology, fluid inclusion analysis, elemental and isotopic geochemistry to elucidate high-resolution temporal fluid evolution in old sedimentary basins with a complex tectonic history, providing a new paradigm for studying geofluid evolution. |
| first_indexed | 2025-11-14T11:44:35Z |
| format | Journal Article |
| id | curtin-20.500.11937-95553 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-14T11:44:35Z |
| publishDate | 2022 |
| publisher | ELSEVIER |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-955532024-10-09T05:28:09Z Direct dating Paleo-fluid flow events in sedimentary basins Yang, P. Liu, K. Li, Zhen Rankenburg, Kai McInnes, Brent I.A. Liu, J. Evans, Noreen Science & Technology Physical Sciences Geochemistry & Geophysics Fluid flow In-situ calcite U-Pb dating Fluid inclusions Isotope geochemistry Carbonate reservoir Tarim Basin U-PB GEOCHRONOLOGY LUNNAN LOW UPLIFT TAHE OIL-FIELD TARIM BASIN NW CHINA HYDROCARBON MIGRATION SECONDARY POROSITY PETROLEUM SYSTEMS THERMAL EVOLUTION MARINE PETROLEUM Reconstructing fluid evolution history in old sedimentary basins is extremely challenging due to the prolonged evolution, lack of exact age constraints and absence of preserved fluids. By integrating in-situ calcite U–Pb dating, fluid inclusion analysis, measurements of major and trace elements and carbon‑oxygen‑strontium isotopes, and molecular composition analysis of petroleum, we have reconstructed the fluid evolution history during the Carboniferous in an Ordovician deeply-buried carbonate reservoir in the Tarim Basin, China, with unprecedented temporal resolution. Five generations of calcite cementation spanning over 37 m.y. are dated in a single calcite vein with U–Pb ages ranging from ~353 Ma to ~316 Ma. The initial cement was associated with an intrusion of hyper-saline brine, enriched in REEs. This was followed by influx of meteoric water to precipitate the second and third generations of cement, which are characterized by reduced salinity, anomalously high 87Sr/86Sr ratios and extremely low concentration of REEs. The fourth generation of calcite cement was formed in a deep-fluid system accompanied by oil charge as indicated by the presence of bitumen, oil inclusions and low δ13C and 87Sr/86Sr ratios. The fifth generation of cement was precipitated from equilibrated connate water, and has the lowest salinity and a comparable REE signature to the host rock. Oil charge event occurred around 326 Ma. This study demonstrates the effectiveness of combining in-situ calcite U–Pb geochronology, fluid inclusion analysis, elemental and isotopic geochemistry to elucidate high-resolution temporal fluid evolution in old sedimentary basins with a complex tectonic history, providing a new paradigm for studying geofluid evolution. 2022 Journal Article http://hdl.handle.net/20.500.11937/95553 10.1016/j.chemgeo.2021.120642 English http://purl.org/au-research/grants/arc/LE150100013 ELSEVIER restricted |
| spellingShingle | Science & Technology Physical Sciences Geochemistry & Geophysics Fluid flow In-situ calcite U-Pb dating Fluid inclusions Isotope geochemistry Carbonate reservoir Tarim Basin U-PB GEOCHRONOLOGY LUNNAN LOW UPLIFT TAHE OIL-FIELD TARIM BASIN NW CHINA HYDROCARBON MIGRATION SECONDARY POROSITY PETROLEUM SYSTEMS THERMAL EVOLUTION MARINE PETROLEUM Yang, P. Liu, K. Li, Zhen Rankenburg, Kai McInnes, Brent I.A. Liu, J. Evans, Noreen Direct dating Paleo-fluid flow events in sedimentary basins |
| title | Direct dating Paleo-fluid flow events in sedimentary basins |
| title_full | Direct dating Paleo-fluid flow events in sedimentary basins |
| title_fullStr | Direct dating Paleo-fluid flow events in sedimentary basins |
| title_full_unstemmed | Direct dating Paleo-fluid flow events in sedimentary basins |
| title_short | Direct dating Paleo-fluid flow events in sedimentary basins |
| title_sort | direct dating paleo-fluid flow events in sedimentary basins |
| topic | Science & Technology Physical Sciences Geochemistry & Geophysics Fluid flow In-situ calcite U-Pb dating Fluid inclusions Isotope geochemistry Carbonate reservoir Tarim Basin U-PB GEOCHRONOLOGY LUNNAN LOW UPLIFT TAHE OIL-FIELD TARIM BASIN NW CHINA HYDROCARBON MIGRATION SECONDARY POROSITY PETROLEUM SYSTEMS THERMAL EVOLUTION MARINE PETROLEUM |
| url | http://purl.org/au-research/grants/arc/LE150100013 http://hdl.handle.net/20.500.11937/95553 |