Cao, L, Sun, Q and Magee, C orcid.org/0000-0001-9836-2365 (Cover date: December 2023) Reutilization of fluid flow pathways over 54 million years, offshore New Zealand. Basin Research, 35 (6). pp. 2349-2363. ISSN 0950-091X
Abstract
Structures that facilitate fluid migration are common in sedimentary basins. We document several possible hydrothermal and/or volcanic vents located above a >157 km2, late Cretaceous volcanic field in the Great South Basin, offshore New Zealand. Three of the four vents are vertically stacked, suggesting episodic re-use of the same fluid pathway between ca. 75 and 56 Ma. A palaeo-pockmark dated to ca. 49 Ma and free gas occurring within strata ca. 21 Myr old are located directly above these stacked vents. The spatial association of the vents, pockmark and free gas further suggests re-use of the fluid migration pathway(s) extended for over 54 Myr. Our results imply that reutilization of fluid flow pathways can affect the distribution of fluids within basins over prolonged periods, potentially impacting hydrocarbon/geothermal exploration and geohazard assessment.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2023 International Association of Sedimentologists and European Association of Geoscientists and Engineers and John Wiley & Sons Ltd. This is the peer reviewed version of the following article: Cao, L, Sun, Q and Magee, C (2023) Reutilization of fluid flow pathways over 54 million years, offshore New Zealand. Basin Research. ISSN 0950-091X, which has been published in final form at https://doi.org/10.1111/bre.12801. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions. This article may not be enhanced, enriched or otherwise transformed into a derivative work, without express permission from Wiley or by statutory rights under applicable legislation. Copyright notices must not be removed, obscured or modified. The article must be linked to Wiley’s version of record on Wiley Online Library and any embedding, framing or otherwise making available the article or pages thereof by third parties from platforms, services and websites other than Wiley Online Library must be prohibited. |
Keywords: | fluid migration; gas chimney; Great South Basin; hydrothermal vent; pockmark |
Dates: |
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Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Environment (Leeds) > School of Earth and Environment (Leeds) > Inst of Geophysics and Tectonics (IGT) (Leeds) |
Depositing User: | Symplectic Publications |
Date Deposited: | 29 Jun 2023 12:59 |
Last Modified: | 10 Dec 2024 16:25 |
Status: | Published |
Publisher: | Wiley |
Identification Number: | 10.1111/bre.12801 |
Related URLs: | |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:200878 |