Multiple cooling episodes in the Central Tarim (Northwest China) revealed by apatite fission track analysis and vitrinite reflectance data
摘要:Apatite fission track and vitrinite reflectance are integrated for the first time to study the cooling history in the Central Tarim, northwest China. The paleo-temperature profiles from vitrinite reflectance data of the Z1 and Z11 wells showed a linear relationship with depth, suggesting an approximately 24.8 A degrees C/km paleo-geothermal gradient and 2700-3900 m of erosion during the Early Mesozoic. The measured apatite fission track ages from well Z2 in the Central Tarim range from 39 to 159 Ma and effectively record the Meso-Cenozoic cooling events that occurred in Central Tarim. Moreover, two cooling events at 190-140 Ma in the Early Jurassic-Early Cretaceous and 80-45 Ma in the Late Cretaceous-Paleocene revealed by measured AFT data and thermal modeling results are related to the collisions of the Qiangtang-Lhasa terranes and the Greater India Plate with the southern margin of the Eurasian Plate, respectively. This study provides new insights into the tectonic evolution of the Tarim Basin (and more broadly Central Asia) and for hydrocarbon generation and exploration in the Central Tarim.
关键字:Central Tarim Apatite fission track Vitrinite reflectance Cooling events Tarim Basin
ISSN号:1437-3254
卷、期、页:卷: 105 期: 4 页: 1257-1272
发表日期:2016-06-01
影响因子:2.283000
期刊分区(SCI为中科院分区):三区
收录情况:SCIE(科学引文索引网络版)
发表期刊名称:INTERNATIONAL JOURNAL OF EARTH SCIENCES
参与作者:宋鑫颖,李慧莉
第一作者:常健,邱楠生
论文类型:期刊论文
论文概要:常健,邱楠生,宋鑫颖,李慧莉,Multiple cooling episodes in the Central Tarim (Northwest China) revealed by apatite fission track analysis and vitrinite reflectance data,INTERNATIONAL JOURNAL OF EARTH SCIENCES,2016,卷: 105 期: 4 页: 1257-1272
论文题目:Multiple cooling episodes in the Central Tarim (Northwest China) revealed by apatite fission track analysis and vitrinite reflectance data