【摘 要】
：
Ophiolites are fragments of upper mantle and oceanic crust(Dewey and Bird,1971; Coleman,1977; Nicolas,1989)that were consisting of mantle peridotites and a suite of magmatic rocks.Importantly,ophiolit
【机 构】
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Faculty of Earth Sciences,China University of Geosciences,Wuhan 430074,China
【出 处】
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International Workshop on: Ophiolites, Mantle Processes and
论文部分内容阅读
Ophiolites are fragments of upper mantle and oceanic crust(Dewey and Bird,1971; Coleman,1977; Nicolas,1989)that were consisting of mantle peridotites and a suite of magmatic rocks.Importantly,ophiolite suite is the key sign for the boundary between two terranes,and could be produced in varied settings,such as continent-continent or arc-continent collisions(Dilek and Flower,2003),ridge-trench interactions(Cloos,1993; Lagabrielle et al.,2000),and subduction-accretion orogen(Cawood et al.,2009).The typical ophiolites are formed in a single environment during a single ocean-continent conversion cycle,however,there is a special case in the North Tibetan Plateau,which is characterized by two ophiolites with different chemical affinities and ages located in one same suture zone.
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