Abstract
Thrust zones in a deep-water fold-thrust belt, offshore NW Borneo, display prominent reflections that can be mapped through a 3D seismic volume. Unlike fault plane reflections obtained from thrusts in other systems, these have positive polarity. Well data show that the reflections in the Borneo data set originate from fault-bound sandstone slices, with porosity-occluding calcite cement, entrained along the thrust zone. The thrust zone can support elevated fluid pressures beneath the fault with the cemented sandstones. Multiple sandstone slices indicate complex patterns of thrust zone localization, perhaps a common feature for deformation in sedimentary multilayers typical of many deep-water depositional successions.
Original language | English |
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Pages (from-to) | 1039-1042 |
Number of pages | 4 |
Journal | Geology |
Volume | 46 |
Issue number | 12 |
Early online date | 27 Sept 2018 |
DOIs | |
Publication status | Published - Dec 2018 |
Bibliographical note
This work is part of Ph.D. research supported by INPEX CORPORATION at University of Aberdeen. We thank Conrad Childs, Haakon Fossen, and an anonymous reviewer for their reviews and constructive suggestions. We thank Petronas and INPEX CORPORATION for the provision of seismic and well data to the Ph.D. research, and for permission to publish this work. Schlumberger and Midland Valley are thanked for the academic use of Petrel 2016.1 and Move 2017.2 software.Fingerprint
Dive into the research topics of 'Entrained sand generates fault plane reflections on a deep-water thrust zone'. Together they form a unique fingerprint.Profiles
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Clare Bond
- School of Geosciences, Geology and Geophysics - Personal Chair
- Centre for Energy Transition
Person: Academic
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