| Thermal History of Rocks in the Shiwandashan Basin, Southern China： Evidence from Apatite Fission-Track Analysis |
| |
| 引用本文： | WangXinwei WangXinwen MaYongsheng. Thermal History of Rocks in the Shiwandashan Basin, Southern China： Evidence from Apatite Fission-Track Analysis[J]. 中国地质大学学报(英文版), 2005, 16(1): 29-37 |
| |
| 作者姓名： | WangXinwei WangXinwen MaYongsheng |
| |
| 作者单位： | Wang Xinwei Wang Xinwen Key Laboratory of Lithospheric Tectonics and Lithoprobing Technology，China University of Geosciences，Beijing 100083，China; School of the Earth Sciences and Resources，China University of Geosciences，Beijing 100083，China Ma Yongsheng Southern Exploration and Production Sub company of SINOPEC，Kunming 650021，China |
| |
| 基金项目： | theSouthernExplorationandProduction SubcompanyofSINOPEC(No. 00 010). |
| |
| 摘 要： | INTRODUCTIONThe strong Indosinian orogeny that occurred atthe end of the Middle Triassic leads to the end of ma rine sedimentation in the southern part of China. Asa result of this strong orogeny, a continental sedi mentary basin called as th…
|
| 关 键 词： | 受热历程 磷灰石 裂变径迹 长度分布 数学模型 三叠纪 海洋沉积 |
Thermal History of Rocks in the Shiwandashan Basin, Southern China: Evidence from Apatite Fission-Track Analysis |
| |
| Wang Xinwei,Wang Xinwen,Ma Yongsheng. Thermal History of Rocks in the Shiwandashan Basin, Southern China: Evidence from Apatite Fission-Track Analysis[J]. Journal of China University of Geosciences, 2005, 16(1): 29-37 |
| |
| Authors: | Wang Xinwei Wang Xinwen Ma Yongsheng |
| |
| Abstract: | Based on interpretations of the apatite fission-track analysis data for 10 outcrop samples and forward modeling of confined fission-track length distributions, the thermal history of rocks in the Shiwandashan basin and its adjacent area, southern China, has been qualitatively and semi-quantitatively studied. The results reflect several features of the thermal history. Firstly, all the samples have experienced temperatures higher than 60-70 ℃. Secondly, the time that the basement strata (T1b) on the northwestern side of the Shiwandashan basin were uplifted and exhumed to the unannealed upper crust (with a paleogeotemperature of below 60-70 ℃) is much earlier than the basement rocks (γ15) on the southeastern side of the basin. Thirdly, the thermal history of samples from the basin can be divided into six stages, I.e., the fast burial and heating stage (220-145 Ma), the transient cooling stage (145-135 Ma), the burial and heating stage (135-70 Ma), the rapid cooling stage (70-50 Ma), the relatively stable stage (50-20 Ma) and another rapid cooling stage (20 Ma to present). |
| |
| Keywords: | apatite fission track analysis forward modeling of confined fission track length distribution thermal history Shiwandashan basin. |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
