摘要：The thermal regime and thermal history of sedimentary basins play an important role in basin dynamics and hydrocarbon accumulation. The sedimentary basins in the western and eastern China underwent different tectonic background and dynamic mechanism, which resulted in the differentials of their thermal regimes. In this paper, the Meso-Cenozoic thermal regimes of the Bohai Bay Basin in the eastern China and Tarim Basin in the western China were studied based on the thermal history, “thermal” lithosphere and lithospheric thermal structure, and the results show that the thermal regimes in these two basins underwent different evolution since the Mesozoic. The heat flow of the Bohai Bay Basin underwent two peak evolution phases occurred in the Early Cretaceous to the early Late Cretaceous (K1-K2¹) and the Eocene-Oligocene (E2-E3) respectively, while the heat flow in the Tarim Basin gradually decreased from the Mesozoic to the Cenozoic. Two rapidly thinning processes of the “thermal” lithosphere in the Bohai Bay Basin occurred in the Late Early Cretaceous and the Paleocene, and its minimum thickness was only 43-55 km in the Paleocene. However, the thickness of the “thermal” lithosphere in the Tarim Basin increased slowly in the Mesozoic and then rapidly since the Paleocene. The ratio of crust to mantle heat flow revealed that the lithospheric thermal structure of the Bohai Bay Basin was divided into two phases: “cold mantle and hot crust” type during the Triassic-Jurassic but “hot mantle and cold crust” type since the Cretaceous, while that of the Tarim Basin always stayed in the “hot mantle and cold crust” phase and then transferred to “cold mantle and hot crust” phase since the end of the Neocene. The differences of the lithoshperic thermal structures and thermal conditions between these two basins were closely related to the thermal-rheological structure and deformation of the lithosphere. The research on the thermal history and lithospheric thermal structure of the sedimentary basins could effectively reveal the thermal regime in the deep of the sedimentary basins and provide scientific reference for studying the basin dynamic mechanism during the Meso-Cenozoic.
©, 2014, The Editorial Office of Earth Science Frontiers. All right reserved.

ISSN号：1005-2321

卷、期、页：v 22,n 1,p157-168

发表日期：2015-01-01

期刊分区（SCI为中科院分区）：四区

收录情况：EI（工程索引）

发表期刊名称：Earth Science Frontiers

参与作者：左银辉,许威

第一作者：邱楠生,常健,朱传庆

论文类型：期刊论文

论文概要：邱楠生,左银辉,常健,许威,朱传庆，Characteristics of Meso-Cenozoic thermal regimes in typical eastern and western sedimentary basins of China，Earth Science Frontiers，2015，v 22,n 1,p157-168

论文题目：Characteristics of Meso-Cenozoic thermal regimes in typical eastern and western sedimentary basins of China