宁顺地区及其周围大陆架的上新世-现世构造与应变速率

IF 2.4 Q2 GEOSCIENCES, MULTIDISCIPLINARY

VIETNAM JOURNAL OF EARTH SCIENCES Pub Date : 2020-12-04 DOI:10.15625/0866-7187/15694

N. Liem, P. T. Trinh, T. Phong, Vy Thi Hong Lien, N. Hương, Nguyễn Quang Xuyên, Bùi Nhị Thanh, D. Hao, B. Pham, N. Dung, V. Dang, Vu Hoa An

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引用次数: 7

摘要

本文通过GPS测量和地震解释，提供了上新世现今构造和应变速率的详细数据。使用国际参考系ITRF08，我们揭示了GPS站点的绝对构造速度，东部的滑动速率在22至25毫米/年之间，南部的滑动速率为4至8毫米/年。目前的应变速率是根据目前的构造速度确定的，这些速度与根据地震剖面、上新世-第四纪沉积物厚度确定的最近应变速率一致。目前的应变速率从每年10到30纳米不等，这表明该地区在稳定的构造状态下发生了微弱的变形。

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Pliocene - present tectonics and strain rate in Ninh Thuan region and surrounding continental shelf

In this paper, we present detail data of Pliocene - present tectonics and strain rate from GPS measurement and seismic interpretation. Using international reference frame ITRF08, we revealed absolute tectonic velocities of GPS sites with the slip rate to the east between 22 to 25 mm/year, to the south between 4 to 8 mm/year. The present strain rate was determined from present tectonic velocities that were consistent with the recent strain rates determined from seismic profiles, thickness of Pliocene - Quaternary sediments. Present day strain rate varying from 10 to 30 nano per year indicated that the region has been deformed weakly, in a stable tectonic regime.

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来源期刊

VIETNAM JOURNAL OF EARTH SCIENCES GEOSCIENCES, MULTIDISCIPLINARY-

CiteScore

3.60

自引率

20.00%

发文量