摘要：The research on the tectono-thermal histories of the northern Tarim Basin, particularly the eastern Kuqa foldand-thrust belt (KFTB) is crucial for comprehending the basin-mountain tectonic evolution and related coupling in the central Asia. This study aims to reconstruct the tectono-thermal history of the eastern KFTB with a combination of apatite fission track (AFT) ages, apatite (U-Th)/He (AHe) ages and vitrinite reflectance data. The central AFT ages of the samples range from 22.93 Ma to 156.59 Ma, which are younger than the corresponding stratigraphic ages. The single-grain AHe ages range from 4.23 Ma to 24.92 Ma and display some dispersion, likely due to radiation damage and/or grain size effects. Thermal modeling results indicate that the eastern KFTB mainly experienced the Cretaceous and Miocene rapid cooling events (althouth the timing and magnitude of these events varied among the samples), which were related to the collisions of the QiangtangLhasa Terranes and India Plate with the southern margin of the Eurasia Plate. The paleo-heat flow of the eastern KFTB decreased from the Late Triassic (54 - 55 mW/m2) to the Early Miocene (44 - 47 mW/m2) and then increased since the Late Miocene due to thrust fault activity. Furthermore, we reappraised the maturation evolution histories of the source rock in the Huangshanjie and Yangxia formations using the new thermal hirtories, which were consistent with the hydrocarbon charging and accumulation time, as indicated by the homogenization temperature of fluid inclusions. Overall, this study provides valuable insights into the tectonothermal histories of the eastern KFTB. It enhances our understanding of the tectonic evolution of Central Asia and holds great significance for further hydrocarbon exploration and development in the northern Tarim Basin.

关键字：Kuqa fold-and-thrust belt; Central Asia; Apatite low-temperature thermochronometer; Thermal history; Hydrocarbon accumulation

ISSN号：1367-9120

卷、期、页：卷: 259

发表日期：2024-01-01

影响因子：0.000000

期刊分区（SCI为中科院分区）：三区

收录情况：SCI（科学引文索引印刷版）,地学领域高质量科技期刊分级目录（国外T2）,SCIE（科学引文索引网络版）

发表期刊名称：JOURNAL OF ASIAN EARTH SCIENCES

参与作者：张海祖,王祥

通讯作者：杨磊

第一作者：常健,李晨星,邱楠生

论文类型：期刊论文

论文概要：常健,杨磊,李晨星,邱楠生,张海祖,王祥，Tectono-thermal evolution of the northern Tarim Basin, Central Asia: New insights from apatite low-temperature thermochronometers，JOURNAL OF ASIAN EARTH SCIENCES，2024，卷: 259

论文题目：Tectono-thermal evolution of the northern Tarim Basin, Central Asia: New insights from apatite low-temperature thermochronometers