globalchange  > 科学计划与规划
DOI: 10.1002/2016GL068233
论文题名:
Active tectonics west of New Zealand's Alpine Fault: South Westland Fault Zone activity shows Australian Plate instability
作者: De Pascale G.P.; Chandler-Yates N.; Dela Pena F.; Wilson P.; May E.; Twiss A.; Cheng C.
刊名: Geophysical Research Letters
ISSN: 0094-9176
EISSN: 1944-8907
出版年: 2016
卷: 43, 期:7
起始页码: 3120
结束页码: 3125
语种: 英语
英文关键词: Alpine Fault ; CPT ; New Zealand ; South Westland Fault Zone ; uplift ; Westland Basin
Scopus关键词: Luminescence ; Plates (structural components) ; Stratigraphy ; Alpine Faults ; Fault zone ; New zealand ; Uplift ; Westland Basin ; Faulting
英文摘要: The 300 km long South Westland Fault Zone (SWFZ) is within the footwall of the Central Alpine Fault (<20 km away) and has 3500 m of dip-slip displacement, but it has been unknown if the fault is active. Here the first evidence for SWFZ thrust faulting in the "stable" Australian Plate is shown with cumulative dip-slip displacements up to 5.9 m (with 3 m throw) on Pleistocene and Holocene sediments and gentle hanging wall anticlinal folding. Cone penetration test (CPT) stratigraphy shows repeated sequences within the fault scarp (consistent with thrusting). Optically stimulated luminescence (OSL) dating constrains the most recent rupture post-12.1 ± 1.7 ka with evidence for three to four events during earthquakes of at least Mw 6.8. This study shows significant deformation is accommodated on poorly characterized Australian Plate structures northwest of the Alpine Fault and demonstrates that major active and seismogenic structures remain uncharacterized in densely forested regions on Earth. © 2016. American Geophysical Union. All Rights Reserved.
URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84979467675&doi=10.1002%2f2016GL068233&partnerID=40&md5=69d38e30ec8640f732e8f8f837e37d5e
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/10139
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: Departmento de Geologia y Centro de Excelencia en Geotermia de Los Andes, Facultad de Ciencias Fisicas y Matematicas, Universidad de Chile, Santiago, Chile

Recommended Citation:
De Pascale G.P.,Chandler-Yates N.,Dela Pena F.,et al. Active tectonics west of New Zealand's Alpine Fault: South Westland Fault Zone activity shows Australian Plate instability[J]. Geophysical Research Letters,2016-01-01,43(7).
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