Magma-induced strain localization in centrifuge models of transfer zones

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• 作者：Corti ; Giacomo ; Bonini ; Marco ; Mazzarini ; Francesco ; Boccaletti ; Mario ; Innocenti ; Fabrizio ; et. al.
• 关键词：Transfer zones ; Strain localisation ; Magma emplacement ; Centrifuge models
• 刊名：Tectonophysics
• 出版年：2002
• 出版时间：April 29, 2002
• 年：2002
• 卷：348
• 期：4
• 页码：205-218
• 全文大小：923 K

文摘

Scaled centrifuge experiments have been used to investigate the dynamic relations between deformation and magma distribution in rift-related transfer zones. The physical models were built using suitable analogue materials, such as sand to represent the brittle upper crust, various kinds of silicone mixtures to simulate the lower crust and upper mantle and glycerol to reproduce magma. Models simulated the development of transfer zones across pre-existing glycerol reservoirs placed at the base of the analogue continental crust. In plan view, different geometries, dimensions and positions of subcrustal reservoirs were reproduced in three different sets of experiments; to compare results, models were also performed without magma-simulating glycerol.