Organic maturation study of Permian coal seams, Rajmahal Basin, Bihar

被引：0

作者：

Singh, MP ^{[1
]}

Singh, PK ^{[1
]}

机构：

[1] Banaras Hindu Univ, Dept Geol, Varanasi 221005, Uttar Pradesh, India

来源：

JOURNAL OF THE GEOLOGICAL SOCIETY OF INDIA | 1998年 / 51卷 / 03期

关键词：

coal petrology; Permian; Rajmahal Basin; Bihar;

D O I：

暂无

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

The coals are sub-bituminous to high volatile bituminous in rank and show evidences of "bituminization" stage of. maturation. They have distinctive petrographic characteristics being rich in secondary liptinites such as exsudatinite (nil to 7.66%), bituminite (0.94 to 28.88%) and fluorinite (nil to 0.99%). The rock-eval data suggest that they are hydrogen-rich and have immature organic matter-kerogen type III. The study corroborates the earlier contention regarding the onset of 'oil window' at Rom of 0.5% and suggests that the paleodepth of burial of the coal bearing horizon in the Rajmahal basin was from 1890 to 2970m. The loss of cover has been estimated to range from 1440 to 1720m.

引用

页码：279 / 294

页数：16

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