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Balancing deformation in NW Borneo: Quantifying plate-scale vs. gravitational tectonics in a delta and deepwater fold-thrust belt system |
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| Authors: | Rosalind C King Guillaume Backé Christopher K Morley Richard R Hillis Mark RP Tingay |
| Institution: | 1. Australian School of Petroleum, University of Adelaide, Adelaide, SA 5005, Australia;2. School of Earth and Environmental Sciences, University of Adelaide, Adelaide, SA 5005, Australia;3. Geological and Geophysical Services, PTEPP, 555 Vibhavadi-Rangsit, Chatuchak, Bangkok 10900, Thailand;4. Department of Applied Geology, Curtin University of Technology, GPO Box U1987, Perth, WA 6845, Australia |
| Abstract: | Recent GPS measurements demonstrate that NW Borneo undergoes 4–6 mm of plate-scale shortening a year, which is not accommodated by plate-scale structures. The only geological structure in NW Borneo described to accommodate on-going shortening is the Baram Delta System located on the outer shelf to basin floor. Delta toe fold-thrust belts are commonly thought to be caused by margin-normal compressional stresses generated by margin-parallel upslope gravitational extension. |
| Keywords: | 2D restoration Deepwater fold-thrust belt Delta system Numerical modelling Baram delta NW Borneo |
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