Lu, Yin; Marco, Shmuel; Wetzler, Nadav; Fang, Xiaomin; Alsop, Ian G; Hubert-Ferrari, Aurélia (2020): A 2-Myr seismite record (3.6-1.6 Ma) from the western Qaidam Basin, NE Tibet [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.922852
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Abstract:
As part of a joint Sino‐German (SG) project, the 723‐m‐deep core SG‐1b (38°21′9.46″N, 92°16′24.72″E) has been drilled from the crest of the Jianshan Anticline, western Qaidam Basin, NE Tibet during 2011. In this study, we focus on the core interval between ~260 and 0 m, which was dated at ~3.6-1.6 Ma. We identify the micro-faults, soft-sediment deformation, slump, and detachment surface in the core as paleoearthquake/tectonics indicators. The core records 164 seismites and five seismite clusters which occurred at 3.61-3.49 Ma, 3.39-3.19 Ma, 3.16-3.09 Ma, 3.00-2.91 Ma, and 2.81-2.75 Ma, suggesting the rate to tectonic strain release by the folds and thrusts in the western Qaidam Basin vary between 3.6 and 2.7 Ma and thus revealing episodic regional deformation.
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Lu, Yin; Marco, Shmuel; Wetzler, Nadav; Fang, Xiaomin; Alsop, Ian G; Hubert-Ferrari, Aurélia (2021): A Paleoseismic Record Spanning 2‐Myr Reveals Episodic Late Pliocene Deformation in the Western Qaidam Basin, NE Tibet. Geophysical Research Letters, 48(5), https://doi.org/10.1029/2020GL090530
Coverage:
Latitude: 38.352628 * Longitude: 92.273533
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
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2 datasets
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Datasets listed in this publication series
- Lu, Y; Marco, S; Wetzler, N et al. (2020): Five seismite clusters of sediment core SG-1b. https://doi.org/10.1594/PANGAEA.922837
- Lu, Y; Marco, S; Wetzler, N et al. (2020): Seismite and age of sediment core SG-1b. https://doi.org/10.1594/PANGAEA.922850