How the Altyn Tagh fault (ATF) extends eastwards is one of the key questions in the study of the growth of the Qinghai–Tibetan Plateau. Detailed fieldwork at the easternmost part of the ATF shows that the ATF extends eastward and bypasses the Kuantan Mountain; it does not stop at the Kuantan Mountain, but connects with the northern Heishan fault in the east. The ATF does not enter the Alxa Block but extends eastward along the southern Alxa Block to the Jintanan Mountain. The Heishan fault is not a thrust fault but a sinistral strike‐slip fault with a component of thrusting and is a part of the ATF. Further to the east, the Heishan fault may connect with the Jintananshan fault. A typical strike‐slip duplex develops in the easternmost part of the ATF. The cut and deformed Quaternary sediments and displaced present gullies along the easternmost ATF indicate that it is an active fault. The local highest Mountain (i.e., the Kuantan Mountain) in the region forms in a restraining bend of the ATF due to the thrusting and uplifting. The northward growth of the Qinghai–Tibetan Plateau and the active deformation in South Mongolia are realized by sinistral strike‐slipping on a series of NE–SW‐trending faults and thrusting in restraining bends along the strike‐slip faults with the northeastward motion of blocks between these faults.

中文翻译：

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最东端的Altyn Tagh断层的变形：对青藏高原北部生长的制约

Altyn Tagh断层（ATF）如何向东延伸是研究青藏高原增长的关键问题之一。在ATF最东端的详细野外工作表明，ATF向东延伸并绕过关丹山。它不止于关丹山，而是与东部的黑山断层相连。ATF不会进入Alxa街区，而是沿南部的Alxa街区向东延伸到金塔南山。黑山断层不是逆冲断层，而是具有冲断成分的左旋走滑断层，是ATF的一部分。再往东，黑山断裂可能与金坛南山断裂相连。在ATF的最东部出现了典型的走滑双工。沿着最东端的ATF切割并变形的第四纪沉积物和位移的当前沟壑表明它是一个活动断层。由于推力和隆升作用，该地区当地最高的山脉（即关丹山）形成了ATF的约束弯道。青藏高原的向北增长和南蒙古的活跃变形是通过一系列东北-西南向断裂上的左旋走滑，并随着块体的向北运动而沿着走滑断层上的约束弯曲推力来实现的。在这些故障之间。