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首页> 外文期刊>Journal of Asian earth sciences >Exhumation of the western Qinling mountain range and the building of the northeastern margin of the Tibetan Plateau
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Exhumation of the western Qinling mountain range and the building of the northeastern margin of the Tibetan Plateau

机译：西秦岭山脉的发掘和青藏高原东北缘的建设

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摘要

This study presents new apatite fission-track data collected from intrusive and sedimentary rocks of the western Qinling mountain range. Results show a large range of data, with ages spanning from Upper Jurassic to Oligocene. No particular age-elevation relationships have been detected. Thermal modelling shows clearly that the region was affected by a nearly steady-state slow cooling starting from the Jurassic. This is particularly true for samples collected north of the West Qinling Fault whereas samples collected to the south show a re-heating event, followed by enhanced exhumation. As a whole, these data testify that the studied part of the western Qinling region was relatively stable for a long period and relatively insensitive to the tectonics related to the growth of the Tibetan Plateau. The present-day relief is mainly the result of transtensional tectonics that occurred in the Eocene.
机译：这项研究提供了新的磷灰石裂变径迹数据，该数据是从西秦岭山脉的侵入岩和沉积岩中收集的。结果显示范围广泛的数据，年龄从上侏罗世到渐新世。尚未检测到特定的年龄-海拔关系。热模型清楚地表明，从侏罗纪开始，该区域受到了接近稳态的缓慢冷却的影响。对于西秦岭断层以北采集的样品尤其如此，而向南采集的样品则显示出再热事件，随后发掘出尸体。总体而言，这些数据证明，西部秦岭地区的研究区域长期稳定，对与青藏高原生长有关的构造学相对不敏感。今天的缓解主要是始新世发生的张性构造的结果。

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