The geodynamics of the Pamir-Punjab syntaxis
The geodynamics of the Pamir-Punjab syntaxis
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DOI：
10.1134/s0016852113010020
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发表时间：
2013-02
期刊：
影响因子：
1.1
通讯作者：
V. Burtman
中科院分区：
文献类型：
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作者：
V. Burtman
渐新世-早中新世印度斯坦与欧亚大陆的碰撞导致欧亚板块帕米尔-喀喇昆仑边缘上地幔对流系统的重新排列，印度斯坦大陆岩石圈俯冲到该边缘之下。帕米尔-旁遮普组合形成于中新世，是一次巨大的水平挤压(凸出)。帕米尔高原南部和中部发育了广泛的推覆体，并伴随着其外带的变形。帕米尔-旁遮普组合在上新世-第四纪继续形成，当时向北传播的变形帕米尔高原正在转化为巨大的异形体。在帕米尔高原前缘的外带形成了褶皱-推覆体系。提出了一种构造形成的地球动力学模型。
The collision of Hindustan with Eurasia in the Oligocene-early Miocene resulted in the rearrangement of the convective system in the upper mantle of the Pamir-Karakoram margin of the Eurasian Plate with subduction of the Hindustan continental lithosphere beneath this margin. The Pamir-Punjab syntaxis was formed in the Miocene as a giant horizontal extrusion (protrusion). Extensive nappes developed in the southern and central Pamirs along with deformation of its outer zone. The Pamir-Punjab syntaxis continued to form in the Pliocene-Quaternary when the deformed Pamirs, which propagated northward, were being transformed into a giant allochthon. A fold-nappe system was formed in the outer zone of the Pamirs at the front of this allochthon. A geodynamic model of syntaxis formation is proposed here.