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Tectonic evolution of the western Kunlun orogenic belt, western China

机译：中国西部昆仑造山带的构造演化

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The western Kunlun orogenic belt in western China evolved through the development of a large subduction-accretionary complex, including flysch sediments and granitic plutons, and by collision of three terranes, namely the North and South Kunlun and Karakorum-Qiangtang blocks from the early Paleozoic to the early Mesozoic. North-dipping subduction of the Paleo-Tethys ocean beneath the Kunlun terranes, which may have commenced in the Cambrian, produced an early Paleozoic Andean-type magmatic arc on the South Kunlun, and a marginal back arc basin, represented by the early Paleozoic Oytag-Kudi ophiolite belt, between the North and South Kunlun. A northward subduction zone consumed the basin and the young, hot upper plate lithosphere was obducted southward onto the South Kunlun following closure of the basin. This resulted in collision of the North and South Kunlun in the early Devonian. Continuous northward subduction of Paleo-Tethys resulted in the development of a Carboniferous-Triassic magmatic arc, and a back arc rifting sequence composed of the Carboniferous to Permian carbonates and clastic sediments on the North and South Kunlun terranes. The Paleo-Tethys ocean finally closed in the late Triassic-early Jurassic, when the Kunlun and Karakorum-Qiangtang blocks were accreted, with the Kara-Kunlun accretionary prism marking their suture zone.
机译：中国西部的昆仑造山带是通过发展大型的俯冲-增生复合体（包括飞石沉积物和花岗质岩体）以及从早古生代到北昆仑的南北昆仑和喀喇昆仑-塘三个地块的碰撞而演化而来的。早期中生代。昆仑地块下方的古特提斯海洋北倾俯冲可能始于寒武纪，在南昆仑产生了早期的古生代安第斯型岩浆弧，并以早期的古生代牡蛎为代表的边缘反弧盆地-南北昆仑之间的古帝蛇绿岩带。向北俯冲带吞噬了盆地，盆地封闭后，年轻，炎热的上板岩石圈被向南引到南昆仑。这导致泥盆纪早期南北昆仑相撞。古特提斯不断向北俯冲，形成了石炭纪-三叠纪岩浆弧，并形成了北昆仑和南昆仑地层中由石炭纪至二叠纪碳酸盐和碎屑沉积物组成的反弧裂陷序列。古特提斯洋最终在晚三叠世-侏罗纪时期关闭，当时昆仑和喀喇昆仑-钱塘地块被增生，而卡拉昆仑增生棱镜标记了它们的缝合带。

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