四川盆地南北缘志留纪Ⅲ型干酪根及其地质意义  

The Silurian type Ⅲ kerogen from the northern and southern margins of the Sichuan Basin and its geological significance

作　　者：张廷山[1,2] 陈晓慧 兰光志[1,2] 边立曾 俞剑华[1,2] 

机构地区：[1]西南石油学院勘探系 [2]南京大学地球科学系

出　　处：《岩相古地理》1998年第2期1-7,共7页

基　　金："油气藏地质及开发工程"国家重点实验室开放基金

摘　　要：从四川盆地南北缘近古陆的下志留统中所获干酪根显示，主要以Ⅲ型为主，其中含有管胞、木质素、纤维素等维管植物成分，而在盆地内的远离古陆地区干酪根则表现出以Ⅰ型为主。据此不仅说明在早志留世早期本区古陆上已出现有维管植物。The analysis of the kerogen from the marine environments on the northern and southern margins of the Sichuan Basin shows that the type Ⅲ kerogen,which comprises the vascular plant compositions such as tracheid,lignin and cellulose ,occurs in large quantities in the Lower Silurian strata near the old land,whereas type Ⅰ kerogen has been found in the areas far away from the old land. The findings suggest that the vascular plants began to land in the study area even early in the Ordovician when the old land came into being,and abounded during the early Early Silurian,and that the environmental conditions may have exerted an important influence on the evolution of the plants.

关 键 词：干酪根 维管植物 四川盆地 早志留世 地层 油藏 

分 类 号：P618.130.2[天文地球—矿床学] P534.43[天文地球—地质学]