| 测定沉积盆地古地温的一种新方法:黄铁矿热电参数 |
| |
| 引用本文： | 杨忠芳,徐辉.测定沉积盆地古地温的一种新方法:黄铁矿热电参数[J].现代地质,2000,14(1):69-73. |
| |
| 作者姓名： | 杨忠芳 徐辉 |
| |
| 作者单位： | 中国地质大学地球科学与资源学院!北京100083 |
| |
| 摘 要： | 以酒西盆地窿 3井泥岩及泥灰岩中的黄铁矿为测试对象 ,探讨了利用矿物热电性恢复盆地古地温的可能性。研究表明 ,黄铁矿的热电系数反映了黄铁矿形成过程中的受热温度 ,其形成温度与深度成正相关 ,相关系数 r=0 .92。与此同时 ,对窿 3井砂岩中石英及方解石的流体包裹体进行均一温度测定 ,对相同构造单元的西参 1井进行泥岩镜质体 Ro 测定 ,结果表明 ,3种方法所得出的古地温具有可比性。
|
| 关 键 词： | 沉积盆地 古地温 黄铁矿 热电参数 |
A NEW METHOD FOR DETERMINING PALEOTEMPERATURE OF SEDIMENTARY BASIN:THE THERMOELECTRICAL COEFFICIENT OF PYRITE |
| |
| Yang Zhongfang,Xu Hui.A NEW METHOD FOR DETERMINING PALEOTEMPERATURE OF SEDIMENTARY BASIN:THE THERMOELECTRICAL COEFFICIENT OF PYRITE[J].Geoscience——Journal of Graduate School,China University of Geosciences,2000,14(1):69-73. |
| |
| Authors: | Yang Zhongfang Xu Hui |
| |
| Abstract: | Based on pyrite in mudstone of well Long 3 in the Jiuxi basin,the authors discuss the possibility of determining basin paleotemperature by using mineral thermoelectricity.The results show that the thermoelectrical coefficient relates to formed temperature of pyrite during mudstone sedimentation,and the relativity between the formed temperature of pyrite and its depth is the positive correlation( r =0 92).Meanwhile the homogeneous temperatures of fluid inclusions of quartz and calcite in sandstone cement of well Long 3 and vitrinite reflectance ( R o) from mudstone of well Xican 1 are determined,the results indicate that the paleotemperatures by using three methods have comparative similar results. |
| |
| Keywords: | sedimentary basin paleotemperature pyrite thermoelectrical coefficient |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
