| 黑龙江省达连河油页岩地球化学特征及成因探讨 |
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| 引用本文： | 王世辉,陈春瑞,郑玉龙,刘胜英.黑龙江省达连河油页岩地球化学特征及成因探讨[J].吉林大学学报(地球科学版),2006,36(6):933-937. |
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| 作者姓名： | 王世辉 陈春瑞 郑玉龙 刘胜英 |
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| 作者单位： | 中国科学院 地质与地球物理研究所,北京,100029;大庆油田有限责任公司勘探开发研究院,黑龙江,大庆,163712;大庆油田有限责任公司勘探开发研究院,黑龙江,大庆,163712;大庆油田有限责任公司勘探开发研究院,黑龙江,大庆,163712;中国地质大学,能源学院,北京,100083 |
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| 摘 要： | 论述了达连河含煤段油页岩及油页岩段油页岩的地球化学特征,探讨了两套油页岩成因。这两套油页岩地球化学性质有很多相似之处,主要表现为油页岩都属于中熔或难熔的硅质灰分,SiO2、Al2O3及Fe2O3含量很高;无机元素Mn/Ti小于0.1,Sr/Ba为0.1~0.5,V/Ni为2.6~7.0;有机质类型以腐泥腐殖型为主,正构烷烃OEP值为1.55~3.67,具奇碳数优势,主峰碳为nC23和C29,Pr/Ph比值平均高达2.30,具强烈的姥鲛烷优势,Pr/nC17比值为1.18~3.20,说明这两套油页岩都形成于淡水、近岸及弱氧化-弱还原的湖沼相沉积环境。但含煤段油页岩沉积时期高温、湿润的古气候条件下的喜湿植物面貌,使油页岩母质类型具有较多的富氢组分,这是造成两套油页岩品质差异的主要原因。
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| 关 键 词： | 达连河 油页岩 无机元素 有机质类型 饱和烃 成因 |
| 文章编号： | 1671-5888(2006)06-0933-05 |
| 收稿时间： | 2006-08-20 |
| 修稿时间： | 2006年8月20日 |
Study on Geochemical Characteristics and Genesis of the Dalianhe Oil Shale in Heilongjiang Province |
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| WANG Shi-hui,CHEN Chun-rui,ZHENG Yu-long,LIU Sheng-ying.Study on Geochemical Characteristics and Genesis of the Dalianhe Oil Shale in Heilongjiang Province[J].Journal of Jilin Unviersity:Earth Science Edition,2006,36(6):933-937. |
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| Authors: | WANG Shi-hui CHEN Chun-rui ZHENG Yu-long LIU Sheng-ying |
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| Institution: | lnstitute of Geology and Geo physics,Chinese Academy of Science, Beijing 100029, China;2. The Oil field Exploration and Development Research lnstitute, Daqing Oil field Co. Ltd, Daqing,Heilongjiang 163712, China ;3.School of Energy Resources, China University of Geosciences, Beijing 100083, China |
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| Abstract: | The authors discuss the geochemical characteristics and genesis of the Dalianhe oil shale in both the coal and the oil shale members.The oil shale in the two members are quite similar in geochemistry in that both are of high percentage of SiO_2,Al_2O_3 and Fe_2O_3(middle to difficult lava silicon ash),ratios of Mn/Ti less than 0.1,Sr/Ba between 0.1 and 0.5 and V/Ni between 2.6 and 7.0.The organic styles are mainly composed of sapropel humus.OEP values of n-alkanes are between 1.55 and(3.67,) showing outstanding odd carbon number distribution,with nC_(23) and nC_(29) as the highest peaks.Average Pr/Ph ratio is up to(2.30,) indicating pristine dominance.Pr/nC_(17) ratios are between 1.18 and 3.20.All these characteristics reflect the oil shale in the two members are deposited in a fresh water,lake-swamp,alongshore and lower oxygen and anoxic environment condition.The parent material styles from the coal member are richer in hydrogenous component related to wetness-like flora,which is the main reason for the quality difference of the oil shale in the two members. |
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| Keywords: | Dalianhe oil shale inorganic elements organic matter type saturated hydrocarbon genesis |
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