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作为海陆过渡带的活动大陆边缘和岛弧,是构造活动最活跃和地貌景象最壮观的地带。在那里沉积作用、岩浆活动、构造变动、变质作用和成矿作用都留下深刻的烙印。它是大洋地壳向大陆地壳演化的纽带,也是探索大陆地壳成长和增生的关键地带。因此,八十年代开始的国际全球岩石圈计划,作为当前重点研究课题之一。 1885年休斯(E.Suess)早已指出了活动的太平洋型大陆边缘和被动的大西洋型大陆边缘构造的差异特征。从二十世纪六十年代板块理论问世以来,又将太平洋(活动)型大陆边缘进一步划分为三种亚类型:科迪勒拉型,安第斯型和岛弧型。太平洋型活动大陆边缘,中、新生代以来,有明显的板块碰撞和B型俯冲潜没作用,并伴随有火山作用,地
As the continental margin and island arc of the land-sea transitional zone, it is the most active zone in the tectonic movement and the most spectacular landform. Where the sedimentation, magmatic activity, structural changes, metamorphism and mineralization left a deep imprint. It is the bond between the oceanic crust and the continental crust and also the key area for exploring the growth and proliferation of the continental crust. Therefore, the International Global Lithosphere Program, which started in the 1980s, is currently one of the key research topics. 1885 E.Suess has long pointed out the differences between the active Pacific margin and the passive Atlantic margin. Since the advent of plate theory in the 1960s, the continental margins of the Pacific Ocean have been further divided into three subtypes: Cordillera type, Andean type and island arc type. Since the continental margin of the Pacific Ocean was active in the Mesozoic and Cenozoic, there were obvious subduction of plate collision and B-type subduction with volcanism,