LITHOSPHERIC STRETCHING MODELING OF QIONGDONGNAN BASIN:BASED ON LINE 1

HE Chao; WU Shimin; LONG Genyuan

doi:10.16028/j.1009-2722.2017.08004

2017 Vol. 33, No. 8

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Article navigation > Marine Geology Frontiers > 2017 > 33(8): 24-31

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HE Chao, WU Shimin, LONG Genyuan. LITHOSPHERIC STRETCHING MODELING OF QIONGDONGNAN BASIN:BASED ON LINE 1[J]. Marine Geology Frontiers, 2017, 33(8): 24-31. doi: 10.16028/j.1009-2722.2017.08004

Citation:

HE Chao, WU Shimin, LONG Genyuan. LITHOSPHERIC STRETCHING MODELING OF QIONGDONGNAN BASIN:BASED ON LINE 1[J]. Marine Geology Frontiers, 2017, 33(8): 24-31. doi: 10.16028/j.1009-2722.2017.08004

LITHOSPHERIC STRETCHING MODELING OF QIONGDONGNAN BASIN:BASED ON LINE 1

1.
Marine Geological Institute of Hainan Province, Haikou 570206, China
2.
School of Earth Science and Engineering, Sun Yat-Sen University, Guangzhou 510275, China

More Information

Corresponding author: WU Shimin, wushim@mail.sysu.edu.cn

Received Date: 16 May 2017

Publish Date: 28 August 2017

Abstract

Abstract

In order to better understand the lithospheric extension process of the Qiongdongnan Basin, lithospheric stretching factors were calculated along the Line 1 which across both the continental shelf and slope. Upper-crust stretching factors were calculated by summing heaves measured on seismically imaged faults, varying from 1.678~2.238. Whole crust stretching factors changed from 1.251~2.468, derived from crustal-thinning constrained by seismic reflection and gravity inversion. Lithosphere stretching factors were determined from the combination of the two-dimensional flexural-cantilever forward and reverse modeling, ranging from 1.062~2.647. The results indicate that the depth dependent model is likely optional in the Qiongdongnan Basin. But the stretch factors are not simply increasing with depth, but also related to rheological features and the anisotropy of lithosphere before stretching.
- stretching factor β /
- 2D forward and reverse modeling /
- Qiongdongnan Basin

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References

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