globalchange  > 科学计划与规划
DOI: 10.1002/2016GL069600
论文题名:
No significant steady state surface creep along the North Anatolian Fault offshore Istanbul: Results of 6 months of seafloor acoustic ranging
作者: Sakic P.; Piété H.; Ballu V.; Royer J.-Y.; Kopp H.; Lange D.; Petersen F.; Özeren M.S.; Ergintav S.; Geli L.; Henry P.; Deschamps A.
刊名: Geophysical Research Letters
ISSN: 0094-8951
EISSN: 1944-8682
出版年: 2016
卷: 43, 期:13
起始页码: 6817
结束页码: 6825
语种: 英语
英文关键词: acoustic ranging ; Marmara Sea ; North Anatolian Fault ; seafloor geodesy
Scopus关键词: Transponders ; Acoustic ranging ; Fault displacement rates ; Horizontal deformation ; Least-squares inversion ; Marmara Sea ; North Anatolian Fault ; Seafloor geodesy ; Steady-state surfaces ; Creep
英文摘要: The submarine Istanbul-Silivri fault segment, within 15 km of Istanbul, is the only portion of the North Anatolian Fault that has not ruptured in the last 250 years. We report first results of a seafloor acoustic ranging experiment to quantify current horizontal deformation along this segment and assess whether the segment is creeping aseismically or accumulating stress to be released in a future event. Ten transponders were installed to monitor length variations along 15 baselines. A joint least squares inversion for across-fault baseline changes, accounting for sound speed drift at each transponder, precludes fault displacement rates larger than a few millimeters per year during the 6 month observation period. Forward modeling shows that the data better fit a locked state or a very moderate surface creep—less than 6 mm/yr compared to a far-field slip rate of over 20 mm/yr—suggesting that the fault segment is currently accumulating stress. ©2016. American Geophysical Union. All Rights Reserved.
URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84978063215&doi=10.1002%2f2016GL069600&partnerID=40&md5=52a3a08e18e69db55653c0a14c3e8a0c
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/9914
Appears in Collections:科学计划与规划
气候变化与战略

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作者单位: Laboratoire Littoral Environnement et Sociétés, Université de La Rochelle and CNRS, La Rochelle, France

Recommended Citation:
Sakic P.,Piété H.,Ballu V.,et al. No significant steady state surface creep along the North Anatolian Fault offshore Istanbul: Results of 6 months of seafloor acoustic ranging[J]. Geophysical Research Letters,2016-01-01,43(13).
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