globalchange  > 影响、适应和脆弱性
DOI: 10.1007/s00531-014-1079-5
Scopus记录号: 2-s2.0-84957934428
论文题名:
Correlation of sedimentary units from grain-size and mineralogic analyses as a tool for constraining trench interpretations in palaeoseismology
作者: Ezquerro L.; Liesa C.L.; Simón J.L.; Arlegui L.E.; Luzón A.; Lafuente P.
刊名: International Journal of Earth Sciences
ISSN: 14373254
出版年: 2014
卷: 103, 期:8
起始页码: 2327
结束页码: 2333
语种: 英语
英文关键词: Correlation ; Grain-size analysis ; Mineralogic analysis ; OSL age rejuvenation ; Palaeoseismology ; Trenching
Scopus关键词: coseismic process ; grain size ; luminescence dating ; mineralogy ; paleoseismicity ; sediment ; seismic hazard ; seismology ; trench ; Iberian Cordillera ; Spain
英文摘要: In palaeoseismological trench studies, precise correlation of sedimentary units between fault blocks has an unquestionable value for accurately inferring the amounts of coseismic displacement and hence for assessing seismic hazard. A methodology based on laser analysis of particle size and mineralogic composition by X-ray diffraction is proposed in order to strengthen the correlation of sedimentary units in a trench excavated across the Concud Fault (central Iberian Chain, Spain). The surveyed sediments show sharp and multiple lateral facies changes, as well as inconsistent optically stimulated luminescence (OSL) ages. The results reinforce the correlation based on field inspection of lithologic and sedimentologic features. Moreover, they allow interpretation of rejuvenation of OSL ages of samples in the upthrown fault block, which has been attributed to partial erosion of sedimentary units, as evidenced by their smaller thickness and erosive boundaries. The correlated units are then used to estimate coseismic displacements for three palaeoseismic events. © 2014, Springer-Verlag Berlin Heidelberg.
URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84957934428&doi=10.1007%2fs00531-014-1079-5&partnerID=40&md5=ea6b7c6581d339e30e2b804b3ea5d4c1
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/70324
Appears in Collections:影响、适应和脆弱性
气候减缓与适应

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作者单位: Departamento de Ciencias de la Tierra, Facultad de Ciencias, Universidad de Zaragoza, Pedro Cerbuna 12, Zaragoza, Spain

Recommended Citation:
Ezquerro L.,Liesa C.L.,Simón J.L.,et al. Correlation of sedimentary units from grain-size and mineralogic analyses as a tool for constraining trench interpretations in palaeoseismology[J]. International Journal of Earth Sciences,2014-01-01,103(8)
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