中国地质Issue(2):469-479,11.
青藏高原东缘甘孜地区新生代隆升过程之磷灰石裂变径迹证据
Apatite fission track evidence for the Cenozoic uplift process in Garze area on the eastern margin of the Tibetan Plateau
摘要
Abstract
Based on fission track analysis of seven samples from Garze area on the eastern margin of the Tibetan Plateau, the authors obtained the apparent ages of the analyzed samples. Using the simulated annealing method, the authors made thermal history simulation for all samples, and obtained the thermal evolution history of these samples. According to the results obtained, the Garze area has experienced similar tectonic evolutions since Palaeogene, and the tectonic uplift occurred in 46-30 Ma and since 9 Ma of Neogene, with the uplift rate and average uplift amount being 1261 m/Ma, 2634 m and 388 m/Ma, 1043 m respectively. The tectonic uplifts in the Garze area are characterized by imbalance as well as stage and regional differences; in addition, there also exist deviations in cooling rate, uplift rate and uplift amplitude.关键词
青藏高原东缘/构造隆升/砂岩磷灰石裂变径迹Key words
eastern margin of the Tibetan Plateau/tectonic uplift/apatite fission track of sandstone分类
天文与地球科学引用本文复制引用
王一伟,梅刚,谢启兴,周晓珂,王刚..青藏高原东缘甘孜地区新生代隆升过程之磷灰石裂变径迹证据[J].中国地质,2015,(2):469-479,11.基金项目
中国地质调查局地质调查项目(1212010918037)资助。 ()