蛇纹石化橄榄岩的有机化合物与生物成因性探索  

The Organic Compounds in the Serpentinized Peridotite and Their Biogenesis

作　　者：王先彬[1] 张明峰[1] 卓胜广[2] 迟洪兴[2] 王作栋[1] 王有孝[1] 吴应琴[1] 李振西[1] 杨辉[1] 刘艳[1] 王永莉[1] 孙则朋 

机构地区：[1]甘肃省油气资源研究重点实验室/中国科学院油气资源研究重点实验室,兰州730000 [2]东北大学秦皇岛分校,河北秦皇岛066004

出　　处：《矿物岩石地球化学通报》2016年第2期222-230,共9页Bulletin of Mineralogy, Petrology and Geochemistry

基　　金：国家自然科学基金项目(41103022;41272146;41272146)

摘　　要：超基性岩蛇纹石化为化能自养微生物群落提供了所需要的能量和初始物质,是生命起源最重要的变质水化反应。研究显示,蛇纹石化橄榄岩中有两种来源的有机化合物,一是蛇纹石化期间,在还原和高浓度H_2条件下,通过费-托合成反应产生的非生物成因有机化合物;另一是海洋有机质热降解和/或包含微生物活动残留的有机化合物。但要确定后者与生命演化的相关性和同生性,尚缺乏必要和充分的证据。The serpentinization of uhramafic rocks could provide necessary energy and raw materials to support chemosyn- thetic microbial communities. It is the most crucial metamorphic hydration reaction in the formation of life. Organic com- pounds in serpentinized peridotite could be sourced either from abiogenic organic compounds generated through the FTT type reaction under condition of reduction and high hydrogen concentration during serpentinization of peridotite, or from biogenic organic compounds originated from Thermal degradation of oceanic organic matter and/or from residual organic matter of microbial activity. However, there is still lack of sufficient evidences to confirm the relationship between the bio- genic organic compounds in serpentinized peridotite and the evolution of life.

关 键 词：蛇绿岩 蛇纹石化橄榄岩 碳同位素组成 有机化合物 生物成因性 

分 类 号：P588.125[天文地球—岩石学]