DOI: 10.1016/j.epsl.2018.08.052
Scopus记录号: 2-s2.0-85053475535
论文题名: Active fault system across the oceanic lithosphere of the Mozambique Channel: Implications for the Nubia–Somalia southern plate boundary
作者: Deville E. ; Marsset T. ; Courgeon S. ; Jatiault R. ; Ponte J.-P. ; Thereau E. ; Jouet G. ; Jorry S.J. ; Droz L.
刊名: Earth and Planetary Science Letters
ISSN: 0012821X
出版年: 2018
卷: 502 起始页码: 210
结束页码: 220
语种: 英语
英文关键词: active faults
; Mozambique Channel
; Nubia plate
; plate boundary
; Somalia plate
Scopus关键词: Earthquakes
; Geologic models
; Strike-slip faults
; Structural geology
; Transform faults
; Active fault
; Earthquake epicenter
; Mozambique channels
; Multibeam echo sounder
; Oceanic lithosphere
; Plate boundaries
; Somalia
; Volcanic activities
; Fault slips
; active fault
; African plate
; earthquake epicenter
; echo sounder
; multibeam sonar
; oceanic lithosphere
; plate boundary
; rift zone
; seismic reflection
; shipborne measurement
; transtension
; Indian Ocean
; Mozambique Channel
英文摘要: Seismic reflection and multibeam echosounder data were acquired in the Mozambique Channel in 2014 and 2015 during the PTOLEMEE, PAMELA-MOZ02 and -MOZ04 marine surveys aboard the RV Atalante and Pourquoi Pas? These data revealed that an active fault system is deforming the oceanic lithosphere of the Mozambique Basin which has developed during Jurassic-Cretaceous times. The correlation between the fault system and the arrangement of earthquake epicenters suggests that this tectonically active zone directly connects northward with the southern part of the eastern branch of the East African Rift System which corresponds to the seismically active graben system bounding the northern part of the Davie ridge. The fault zone extends southwestward of the Mozambique Ridge along the same trend as the Agulhas-Falkland transform fault zone. The general organization of the fault zone shows the characteristics of an extensional system north of the Mozambique Channel (north of the Europa Island) and a right-lateral transtensional system with coeval normal faults and strike-slip faults south-west of Europa. This tectonic activity is associated with volcanic activity since at least Late Miocene times. Our findings emphasize that the eastern branch of East African Rift System is extending largely toward the south, not only in continental domains but also through the oceanic lithosphere of the Mozambique basin. This fault zone is participating to the complex plate boundary between the main African continent (Nubia Plate) and Madagascar (Somalia Plate). © 2018 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/109647
Appears in Collections: 影响、适应和脆弱性 气候变化事实与影响
There are no files associated with this item.
作者单位: IFPEN-IFP School, 1-4 avenue de Bois-Préau, Rueil-Malmaison, 92852, France; IFREMER, Unité Géosciences Marines, Plouzané, 29280, France; University of Geneva, Department of Earth Sciences, Rue des Maraichers 13, Geneva, CH-1205, Switzerland; TOTAL, Exploration and Production, CSTJF, Avenue Larribau, Pau, 64000, France; CNRS, Laboratoire CEFREM, Avenue Paul Alduy, Perpignan, 66000, France; Université de Rennes 1, campus Beaulieu OSUR, Rennes cedex, 35042, France; Université de Bretagne occidentale, IUEM, Plouzané, 29280, France
Recommended Citation:
Deville E.,Marsset T.,Courgeon S.,et al. Active fault system across the oceanic lithosphere of the Mozambique Channel: Implications for the Nubia–Somalia southern plate boundary[J]. Earth and Planetary Science Letters,2018-01-01,502