| 四川盆地中西部上三叠统煤系地层烃源岩的有机岩石学特征 |
| |
| 引用本文： | 王世谦,伍大茂.四川盆地中西部上三叠统煤系地层烃源岩的有机岩石学特征[J].矿物岩石,1997,17(1):63-70. |
| |
| 作者姓名： | 王世谦 伍大茂 |
| |
| 作者单位： | 四川石油管理局研究院，中国地质大学 |
| |
| 摘 要： | 采用反射光与透射光相结合的方法，通过研究区１４５个烃源岩样品的２１３块原岩和干酪根光片的显微观察及测定，建立了煤系烃源岩的显微组分分类方案。根据凝胶化指数（ＧＩ）和组织保存指数（ＴＰＩ），对上三叠统陆源有机质的原始形成环境进行了分析，并研究了上三叠统烃源岩的有机岩石学区域变化特征。研究表明，上三叠统陆源有机质的凝胶化指数高，而组织保存指数低，主要沉积在湖沼型滞水泥炭沼泽和草沼－低位泥炭沼泽环境中，形成了较多的富氢有机组分，为研究区油气的生成奠定了良好的物质基础
|
| 关 键 词： | 四川盆地上三叠统烃源岩有机岩石学显微组分煤相 |
ORGANIC PETROLOGY OF SOURCE ROCKS FROM THE UPPER TRIASSIC COAL MEASURES IN THE CENTRAL AND WESTERN SICHUAN BASIN * |
| |
| Wang Shiqian Luo Qihou,Wu Damao.ORGANIC PETROLOGY OF SOURCE ROCKS FROM THE UPPER TRIASSIC COAL MEASURES IN THE CENTRAL AND WESTERN SICHUAN BASIN *[J].Journal of Mineralogy and Petrology,1997,17(1):63-70. |
| |
| Authors: | Wang Shiqian Luo Qihou Wu Damao |
| |
| Abstract: | Microscopic observation and measurement of 213 polished sections of whole rock and kerogen from 145 source rock samples in the area of interest were made by combination of reflected light and trasmitted light.A maceral classification suggested for source rocks in the coal measures was discussed.The original depositional environments of the Upper Triassic terrigenous organic matter were analysed by use of gelication index and tissue preservation index.Finally,the regional characteristics of organic petrology for the Upper Triassic Source rocks were disscussed.It was indicated that the Upper Triassic terrigenous organic matter was characterised by high GI and low TPI,and that it was predominantly formed in limnetic stagnant peat marsh and lowstand peat swamp conditions,resulting in the enrichment of hydrogen rich macerals,which was favourable for the hydrocarbon formation in the area of interest. |
| |
| Keywords: | Sichuan basin Upper Triassic source rock organic petrology maceral coal facies |
| 本文献已被 CNKI 维普 等数据库收录！ |
