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| 江陵凹陷古新统光卤石的发现及其钾盐找矿意义 | |
| 引用本文： | 王春连,刘成林,刘宝坤,沈立建,蔡晓琳,余小灿,谢腾骁,王立成,赵艳军,宣之强.江陵凹陷古新统光卤石的发现及其钾盐找矿意义[J].地质学报,2015,89(1):129-136. |
| 作者姓名： | 王春连 刘成林 刘宝坤 沈立建 蔡晓琳 余小灿 谢腾骁 王立成 赵艳军 宣之强 |
| 作者单位： | 1. 中国地质科学院矿产资源研究所,国土资源部成矿作用与资源评价重点实验室,北京,100037 2. 中国地质大学地球科学与资源学院,地质过程与矿产资源国家重点实验室,北京,100083 3. 天津科技大学,天津,300457 |
| 基金项目： | 973和国家自然科学基金 |
| 摘 要： | 通过薄片鉴定和XRD等分析,在江陵凹陷古新统发现光卤石矿物,单层厚度达23cm,经化学分析该层含光卤石石盐岩中光卤石含量为1.6%。光卤石在江陵凹陷古新统有两种产出状态:一种是被包裹在石盐岩内,呈颗粒状分布,粒度大小0.1~0.5mm;另一种是充填硬石膏孔隙中,粒度大小0.1~0.2mm。经石盐包裹体测温、碳氧同位素和元素地球化学研究,确定了江陵凹陷古新统时期的古气候属于"暖旱"型。江陵凹陷古近纪时期属于裂谷型小盆地,构造期沉降较大,盆地封闭性良好,同时期火山活动频繁,为凹陷带来丰富的成矿物质,火山期后的温热泉水补给同样也为凹陷带来丰富的成矿物质;裂谷的某些部分与大洋沟通,接受海水补给。这样的构造条件、物质条件与古近纪时期的干旱气候相互耦合,出现光卤石沉积。江陵凹陷古新统光卤石发现,说明在该时期江陵凹陷卤水已演化到析出钾盐阶段,具有重要找钾指示意义。 |
| 关 键 词： | 江陵凹陷 古新统 光卤石 古气候 裂谷盆地 钾盐 |
| 收稿时间： | 2014/1/11 0:00:00 |
| 修稿时间： | 2014/7/23 0:00:00 |
The Discovery of Carnallite in Paleocene Jiangling Depression and Its Potash Searching Significance |
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| WANG Chunlian,LIU Chenglin,LIU Baokun,SHEN Lijian,CAI Xiaolin,YU Xiaocan,XIE Tengxiao,WANG Licheng,ZHAO Yanjun and XUAN Zhiqiang.The Discovery of Carnallite in Paleocene Jiangling Depression and Its Potash Searching Significance[J].Acta Geologica Sinica,2015,89(1):129-136. | |
| Authors: | WANG Chunlian LIU Chenglin LIU Baokun SHEN Lijian CAI Xiaolin YU Xiaocan XIE Tengxiao WANG Licheng ZHAO Yanjun and XUAN Zhiqiang |
| Institution: | MLR Key Laboratory of Metallogeny and Mineral Assessment, Institute of Mineral Resources, Chinese Academy of Geological Sciences, Beijing, 100037;MLR Key Laboratory of Metallogeny and Mineral Assessment, Institute of Mineral Resources, Chinese Academy of Geological Sciences, Beijing, 100037;State Key Laboratory of Geological Processes and Mineral Resources, School of the Earth Sciences and Resources, China University of Geosciences, Beijing, 100083;MLR Key Laboratory of Metallogeny and Mineral Assessment, Institute of Mineral Resources, Chinese Academy of Geological Sciences, Beijing, 100037;Tianjin University of Science & Technology, Tianjin, 300457;State Key Laboratory of Geological Processes and Mineral Resources, School of the Earth Sciences and Resources, China University of Geosciences, Beijing, 100083;State Key Laboratory of Geological Processes and Mineral Resources, School of the Earth Sciences and Resources, China University of Geosciences, Beijing, 100083;MLR Key Laboratory of Metallogeny and Mineral Assessment, Institute of Mineral Resources, Chinese Academy of Geological Sciences, Beijing, 100037;MLR Key Laboratory of Metallogeny and Mineral Assessment, Institute of Mineral Resources, Chinese Academy of Geological Sciences, Beijing, 100037;Institute of Geology, Bureau of Mining of China Chemical Industry, Zhuozhou, Hebei, 072754 |
| Abstract: | |
| Keywords: | Jiangling Depression Paleocene carnallite paleoclimate rift basin potash |
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