DOI: 10.1038/s41561-018-0066-z
论文题名: Puzzling features of western Mediterranean tectonics explained by slab dragging
作者: Spakman W. ; Chertova M.V. ; Van Den Berg A. ; Van Hinsbergen D.J.J.
刊名: Nature Geoscience
ISSN: 17520894
出版年: 2018
卷: 11, 期: 3 起始页码: 211
结束页码: 216
语种: 英语
英文摘要: The recent tectonic evolution of the western Mediterranean region is enigmatic. The causes for the closure of the Moroccan marine gateway prior to the Messinian salinity crisis, for the ongoing shortening of the Moroccan Rif and for the origin of the seismogenic Trans-Alboran shear zone and eastern Betics extension are unclear. These puzzling tectonic features cannot be fully explained by subduction of the east-dipping Gibraltar slab in the context of the regional relative plate motion frame. Here we use a combination of geological and geodetic data, as well as three-dimensional numerical modelling of subduction, to show that these unusual tectonic features could be the consequence of slab dragging - the north to north-eastward dragging of the Gibraltar slab by the absolute motion of the African Plate. Comparison of our model results to patterns of deformation in the western Mediterranean constrained by geological and geodetic data confirm that slab dragging provides a plausible mechanism for the observed deformation. Our results imply that the impact of absolute plate motion on subduction is identifiable from crustal observations. Identifying such signatures elsewhere may improve the mantle reference frame and provide insights on subduction evolution and associated crustal deformation. © 2018 The Author(s). Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/105590
Appears in Collections: 气候减缓与适应 科学计划与规划
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作者单位: Department of Earth Sciences, Utrecht University, Utrecht, Netherlands; Centre of Earth Evolution and Dynamics (CEED), University of Oslo, Oslo, Norway
Recommended Citation:
Spakman W.,Chertova M.V.,Van Den Berg A.,et al. Puzzling features of western Mediterranean tectonics explained by slab dragging[J]. Nature Geoscience,2018-01-01,11(3)