藻类有机质的成烃机制探讨  

Inquisition to the Hydrocarbon Generation Mechanism for Algal Organic Matter

作　　者：郭汝泰[1] 杨凤丽[2] 

机构地区：[1]中国科学研究院广州地球化学研究所 [2]同济大学海洋地质与地球物理系,上海200092

出　　处：《同济大学学报（自然科学版）》2002年第1期41-45,共5页Journal of Tongji University:Natural Science

摘　　要：通过有机地球化学、生物有机地球化学、微生物学、石油地质学等多种学科的交叉研究 ,进行了某些藻类在不同沉积环境和复杂生化条件下的生化产烃模拟、富藻湖底淤泥的加水、加压生烃热模拟 ,系统地研究了有机质从沉积早期的生化作用阶段———成岩作用中后期的低温热催化、热催化阶段的成烃机制 ,建立了不同沉积环境藻类有机质的生烃模式 ,研究了藻类、细菌等生烃的生物标志物特征及判识标志 ,并提出了藻类有机质的早期、多期连续生烃的成烃机制 .Based upon the comprehensive study to the organic geochemistry,bio-geochemistry,microbiology and geology,the paper finished the modeling to biochemical hydrocarbon generation for some kinds of algae under different sedimentary environments and complicated biochemical conditions,and the thermal modeling to hydrocarbon generation under the watering and pressured condition for the lake-floor sludge,studied systemically the hydrocarbon generating mechanism of organic matter from biochemical stage during the early period of deposition to the thermal catalysis at low temperature during the middle and late periods of diageneses,set up a hydrocarbon generating model for algal organic matter under different sedimentary environments,analyzed the characteristics of organism marks and the diagnostic criterium to the hydrocarbon generation of algae and bacterium,and suggested the hydrocarbon generation mechanism featured by early and multiple stages continuity for algal organic matter.

关 键 词：有机质 生化产烃模拟 热催化 热降解 藻类 成烃机制 生化作用 成岩作用 

分 类 号：P618.130.1[天文地球—矿床学]