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| 山东黄县断陷盆地油页岩特征及生成机制 | |
| 引用本文： | 许圣传,董清水,闫丽萍,于文斌,杜江峰,厚刚福.山东黄县断陷盆地油页岩特征及生成机制[J].吉林大学学报(地球科学版),2006,36(6):954-958. |
| 作者姓名： | 许圣传 董清水 闫丽萍 于文斌 杜江峰 厚刚福 |
| 作者单位： | 1. 吉林大学,地球科学学院,长春,130026 2. 吉林大学,地球科学学院,长春,130026;吉林石油天然气开发有限责任公司,吉林,松原,138000 3. 吉林大学,地球科学学院,长春,130026;核工业243大队,内蒙古,赤峰,024006 |
| 基金项目： | 国家重大专项(ZP-Y-01) |
| 摘 要： | 古近纪的黄县断陷盆地中,煤与油页岩交互发育,呈旋回式出现。其中油页岩主要呈褐黑色、棕黑色,层理构造不发育,表现为致密坚硬块状。油页岩中有机质质量分数高达45%,并以I型干酪根为主。古生态学显示,古近纪黄县盆地中周期性发生海侵作用,油页岩生成于海水(咸水)与大陆淡水混合的微咸水-半咸水环境中。咸水与淡水混合时发生的凝胶作用是生成该块状油页岩的主要因素。当盆地基底沉降速率较快、发生海侵时,主要为油页岩沉积时期;盆地基底沉降速率较慢、无海侵作用时,盆地为泥炭沼泽环境,主要发育煤层。这种基底沉降速率变化及周期性海水进退,是造成煤与油页岩呈旋回式沉积的主要原因。 |
| 关 键 词： | 黄县 断陷盆地 油页岩 凝胶作用 生成机制 |
| 文章编号： | 1671-5888(2006)06-0954-05 |
| 收稿时间： | 2006-08-20 |
| 修稿时间： | 2006年8月20日 |
The Characteristics and the Formation Mechanism of the Oil Shale in Huangxian Faulted Basin, Shandong Province |
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| XU Sheng-chuan,DONG Qing-shui,YAN Li-ping,YU Wen-bin,DU Jiang-feng,HOU Gang-fu.The Characteristics and the Formation Mechanism of the Oil Shale in Huangxian Faulted Basin, Shandong Province[J].Journal of Jilin Unviersity:Earth Science Edition,2006,36(6):954-958. | |
| Authors: | XU Sheng-chuan DONG Qing-shui YAN Li-ping YU Wen-bin DU Jiang-feng HOU Gang-fu |
| Institution: | 1.College of Earth Sciences, Jilin University, Changchun 130026, China;2. Jilin Oil and Natural Gas Development LTD. , Songyuan, Jilin 138000, China ;3.The No. 243 Team of China Nuclear Industry, Chifeng, Inner Mongolia 024006, China |
| Abstract: | Coal and oil shale occur alternatively and cyclically in the Paleogene Huangxian faulted Basin.The oil shale,lack of bedding structure,is mostly brown black,brownish-black in colour and appears as compact,rigid masses. The content of organic materials is up to 45% and consists mainly of kerogen of I type.Reconstruction of the Palaeoecology in the Paleogene Huangxian faulted Basin indicates that periodical marine invasion dominated.Oil shale was formed in semi-saline or saline water environments caused by commixture of sea water(salty water) with fresh water.While the salt water is mixed up by the fresh water,gelatinous function related to the mixing of two waters resulted in the formation of the oil shale.When the base of the basin subsided quickly with marine invasion,oil shale was deposited.When the subsiding of the basin base became slow down,no marine invasion was found and the basin was dominated by a peat swamp environment in which coal beds were deposited.The cyclic sedimentation of the coal and oil shale was caused by changing subsiding rates of the basin,periodical aggression and retrogression of seawater. |
| Keywords: | Huangxian faulted basin oil shale gelatinous function formation mechanism |
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