|
|||||
|
|
| 江汉盐湖盆地盐间白云岩特征及成因分析 | |
| 引用本文： | 柯小平,覃建雄,李余生,黄克难,刘岫峰.江汉盐湖盆地盐间白云岩特征及成因分析[J].沉积与特提斯地质,2009,29(3):1-8. |
| 作者姓名： | 柯小平 覃建雄 李余生 黄克难 刘岫峰 |
| 作者单位： | 1. 中国科学院测量与地球物理研究所动力大地测量重点实验室,湖北武汉,430077 2. 成都理工大学沉积地质研究所,四川成都,610059 3. 中国石化江汉油田分公司勘探开发研究 |
| 摘 要： | 江汉盐湖盆地潜江凹陷古近系潜江组广泛沉积了一套盐间非砂岩,本文详细研究了该套盐间非砂岩中白云岩的分布、类型、矿物学特征及地球化学特征,探讨了盐间白云岩的成因。研究表明,该套白云岩主要为泥晶白云岩。发育程度与盐岩量成正比。盐间白云岩的矿物组分复杂,白云石有序度低,微量元素以富Fe、Na、高Fe/Mn比值为特征。盐间白云岩主要为盐湖湖盆沉积环境的产物,水体盐度高,总体为碱性环境,Mg/Ca比值低,主要为原生-准同生阶段沉积的产物。 |
| 关 键 词： | 江汉盆地 盐湖 白云岩 成因 |
Characteristics and genesis of the inter-salt dolostones in the Jianghan Basin |
|
| KE Xiao-ping,QIN Jian-xiong,LI Yu-sheng,HUANG Ke-nan,LIU Xiu-feng.Characteristics and genesis of the inter-salt dolostones in the Jianghan Basin[J].Sedimentary Geology and Tethyan Geology,2009,29(3):1-8. | |
| Authors: | KE Xiao-ping QIN Jian-xiong LI Yu-sheng HUANG Ke-nan LIU Xiu-feng |
| Institution: | 1.Institute of Geodesy and Geophysics; Chinese Academy of Sciences; Wuhan 430077; Hubei; China; 2.Institute of Sedimentary Geology; Chengdu University of Technology; Chengdu 610059; Sichuan; 3.Research Institute of Petroleum Exploration and Development; Jianghan Oil Field Company; SINOPEC; Qianjiang 433124; China); |
| Abstract: | A succession of inter-salt non-sandstones occurs on a wide range of scales in the Palaeogene Qianjiang Formation in the Qianjiang depression,Jianghan salt lake basin.The present paper deals,in detail,with the distribution,type,mineralogy,geochemistry and genesis of the dolostones in the inter-salt non-sandstones from the basin.The inter-salt dolostones dominated by micritic dolostones are characterized by complex mineral compositions,lower ordering degree,rich Fe and Na and high Fe/Mn ratios,and thus interp... |
| Keywords: | Jianghan Basin salt lake dolostone genesis |
| 本文献已被 维普 万方数据 等数据库收录！ | |
| 点击此处可从《沉积与特提斯地质》浏览原始摘要信息 | |
| 点击此处可从《沉积与特提斯地质》下载免费的PDF全文 | |