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Phanerozoic continental growth in Central

机译:中部生代大陆生长

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Central Asia (sensu lato; apolitical) is variously known as the Central Asian Orogenic Belt (CAOB), the Central Asian Mobile Belt (CAMB) or the Altaid Tectonic Collage (Altaids). It is situated between the Siberian and Sino-Korean-Tarim cratons, and encompasses an immense area from the Urals in the west, through Kazakhstan, NW China, Mongolia, NE China to the Okhotsk Sea in the Russian Far East. Suess (1908) first recognized several foldbelts arranged peripherally to the west and south of the Angaran nucleus ( = Baikalian structures on the southern side of the Siberian Platform) with successively younger ages away from the craton. A common characteristic feature of the individual orogens in Central Asia is the complex but recurrent arrangement of dominantly accretionary-prism and magmatic-arc material, interspersed with massifs of older continental crust and slivers of oceanic crust (Sengor et al., 1993). In contrast with the better known Caledonides, Hercynides and Himalayas, which are essentially linear belts formed by frontal collision between Precambrian cratons, Central Asia was viewed by Sengor et al. (1993); Sengor and Natal'in (1996) as resulted from growth of voluminous subduction-accretionary complexes and their duplication along large-scale strike-slip faults. Moreover, many isotope tracer studies in the last decade have shown that Central Asia was the world's largest site of juvenile crustal formation in the Phanerozoic eon.
机译:中亚地区(sensu lato;非政治性)被称为中亚造山带(CAOB),中亚移动带(CAMB)或阿尔泰特构造拼贴(Altaids)。它位于西伯利亚和中朝塔里木克拉通之间,从西部的乌拉尔山脉,穿过哈萨克斯坦,西北的中国,蒙古,东北的东北到俄罗斯的远东的鄂霍次克海,范围广泛。 Suess(1908)首先发现了几个折叠带,这些折叠带在Angaran核的西侧和南侧(西伯利亚平台南侧的Baikalian结构)外围分布,并且年龄越来越小。中亚各造山带的一个共同特征是占主导地位的增生棱镜和岩浆弧物质的错综复杂但又反复排列,并散布着较旧的大陆壳和大洋壳碎片(Sengor等,1993)。 Sengor等人认为,与较著名的喀里多尼德,海西尼德和喜马拉雅山基本上是由前寒武纪克拉通之间的正面碰撞形成的线性带,与此相反。 (1993); Sengor和Natal'in(1996)是由于大量俯冲-增生复合物的生长及其在大型走滑断层中的复制所致。此外,在过去的十年中,许多同位素示踪研究表明,中亚是古生代以来世界上最大的地壳形成场所。

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