Qiu Nansheng, Liu Shuai
State Key Laboratory of Petroleum Resources and Prospecting, China University of Petroleum, Beijing, 102249, China.
College of Geosciences, China University of Petroleum, Beijing, 102249, China.
Sci Rep. 2018 Jun 22;8(1):9546. doi: 10.1038/s41598-018-27801-7.
Approximately 2284 fission track data were collected to draw a fission track thermotectonic image of the continental area of China. The result exhibits features such that apatite fission track ages increase from the southwestern to eastern and northern continental areas of China. Thermal paths also reveal the different uplift/denudation processes and times between different tectonic units. At the same time, tectonic uplift of the continent has been among the causes of climate change in the continent since the Cenozoic. The uplift of the Qinghai-Tibet Plateau since the Oligocene is the main cause of the formation of the Asian monsoon and inland droughts, and rapid uplift of the Tibet Plateau after the Pliocene has changed the atmospheric circulation. The main period of climate aridity in Central Asia was caused by the rapid uplift of the Tianshan Mountains since the Miocene, and rapid uplift during the Late Miocene to Pliocene intensified the process of aridity. This study provides the first thermotectonic image of uplift and denudation in the continental area of China and provides a new dating of the formation of the Asian monsoon and climate aridity in Central Asia.
收集了约2284条裂变径迹数据，以绘制中国陆域的裂变径迹热构造图像。结果显示出这样的特征：磷灰石裂变径迹年龄从中国陆域的西南部向东部和北部增大。热演化路径也揭示了不同构造单元之间不同的隆升/剥蚀过程和时间。同时，自新生代以来，大陆的构造隆升一直是大陆气候变化的原因之一。渐新世以来青藏高原的隆升是亚洲季风和内陆干旱形成的主要原因，上新世之后青藏高原的快速隆升改变了大气环流。中亚气候干旱的主要时期是由中新世以来天山山脉的快速隆升造成的，晚中新世至上新世的快速隆升加剧了干旱过程。本研究首次提供了中国陆域隆升和剥蚀的热构造图像，并为亚洲季风的形成和中亚气候干旱提供了新的年代测定。
