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Major Miocene geological events in southern Tibet and eastern Asia induced by the subduction of the Ninetyeast Ridge 被引量:4

Major Miocene geological events in southern Tibet and eastern Asia induced by the subduction of the Ninetyeast Ridge
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摘要 Cenozoic adakitic rocks in the Gangdese changed from barren continental melts to ore-forming slab melts at * 23 Ma. The distribution and chemical characteristics of the ore-forming adakites point to an association with the Ninetyeast Ridge. The subduction of the thick,rigid Ninetyeast Ridge changed the geometry and rheology of the eastern Tibetan Plateau lithosphere and asthenosphere, restrained the eastward escape of asthenospheric mantle as well as continental fragments, and promoted the uplift and building of the Tibetan Plateau, which consequently changed the tectonic and climatic regimes in eastern Asia. Cenozoic adakitic rocks in the Gangdese changed from barren continental melts to ore-forming slab melts at * 23 Ma. The distribution and chemical characteristics of the ore-forming adakites point to an association with the Ninetyeast Ridge. The subduction of the thick,rigid Ninetyeast Ridge changed the geometry and rheology of the eastern Tibetan Plateau lithosphere and asthenosphere, restrained the eastward escape of asthenospheric mantle as well as continental fragments, and promoted the uplift and building of the Tibetan Plateau, which consequently changed the tectonic and climatic regimes in eastern Asia.
出处 《Acta Geochimica》 EI CAS CSCD 2018年第3期395-401,共7页 地球化学学报(英文)
基金 supported by NSFC 91328204 to W.D.S. Strategic Priority Research Program(B)of the Chinese Academy of Sciences(XDB18020102)to W.D.S. and X.L.S.
关键词 RIDGE SUBDUCTION Eastern Tibetan Plateau CENOZOIC MINERALIZATION Seismic anomaly Ridge subduction Eastern Tibetan Plateau Cenozoic mineralization Seismic anomaly
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