海洋地质前沿2016，Vol.32Issue(9)：26-31,6.DOI:10.16028/j.1009-2722.2016.09004
鄂尔多斯盆地伊盟隆起上古生界烃源岩地球化学特征
GEOCHEMISTRY AND EVALUATION OF UPPER PALEOZOIC SOURCE ROCK ON YIMENG UPLIFT,ORDOS BASIN
摘要
Abstract
Source rock founds the basis for hydrocarbon generation and is of significance to determination of the resource potential in the exploration area.This paper is devoted to the lithology,thickness and geochemical characteristics of the Upper Paleozoic source rock in the Yimeng Uplift belonging to Ordos Basin.The Upper Paleozoic source rocks in the Yimeng Uplift are mainly consisting of dark mudstone,carbonaceous mudstone and coal of the Taiyuan and Shanxi Formations.According to the statistics,the total thickness of the Upper Paleozoic dark mudstone in northern Ordos Basin ranges from 10 to 50m while the total thickness of coal is between 2 and 25m.Hydrocarbon source rocks in the southern and eastern parts of the Yimeng Uplift are thicker than those in the northern and western parts,and the quality of source rocks seems better in some depressions than that in other areas.Carbonaceous mudstone and coals in the Taiyuan and Shanxi Formations are relatively high in organic matters,dominated by the Type Ⅲ of Kerogen followed by the type Ⅱ.The original organic matter is supposed to be deposited in an aerobic environment.Ro value ranges from 0.6％ to 1.8％,suggesting that the source rock has entered a matured or high matured stage.The amount of gas generated by the Upper Paleozoic source rock in the southern part is larger than that produced in the northern part of the Yimeng Uplift.The results of the study may provide a basis for hydrocarbon evaluation of the Upper Paleozoic in the Yimeng Uplift.关键词
鄂尔多斯盆地/伊盟隆起/上古生界/烃源岩/地球化学Key words
Ordos Basin/Yimeng Uplift/Upper Palaeozoic/source rock/geochemistry分类
天文与地球科学引用本文复制引用
王明健,孟祥君,陈唏,朱晓青..鄂尔多斯盆地伊盟隆起上古生界烃源岩地球化学特征[J].海洋地质前沿,2016,32(9):26-31,6.基金项目
山东省博士后创新项目专项资金(201201001) （201201001）
国土资源部海洋油气资源与环境地质重点实验室开放基金(MRE201223) （MRE201223）
中国地质调查局地质调查项目(GZH201400205) （GZH201400205）
国家自然科学基金(41606079) （41606079）
