前油沥青的成因类型及其形成机理

Genetic Types and Formational Mechanisms of Pre-oil-bitumen

作者从成因角度将前油沥青分为渗出体、藻类型沥青及动物型沥青等三种类型；在塔里木下古生界源岩中首次识别出藻类型沥青及动物型沥青，并详细地研究了其光学特征，探讨了形成机理，建立了形成模式。

The authors have divided pre-oil-bitumen into three genetic types: exsudatinite, algo-bitumen and zo-bitumen on the basis of its origins. The algo-bitumen and zo-bitumen have been first recognized in the lower Paleozoic source rocks of the Tarim basin. In the paper,their optical properties are discussed in detail, and their formational mechanisms are probed by using thermal simulating experiment. Subsequently. the models for their formation are established.