地球化学急变带及对中国南方油气勘探的思考  

Thoughts about Sharp Geochemical Change Belt to Oil-Gas Exploration in South China

作　　者：朱炳泉[1] 

机构地区：[1]中国科学院广州地球化学研究所

出　　处：《海相油气地质》1997年第4期1-3,共3页Marine Origin Petroleum Geology

摘　　要：地球化学急变带反映了克拉通边缘的地球化学特征,它可比地质观察更有效地揭示克拉通边界的位置。地球化学急变带分为构造显性与构造隐性两种类型,克拉通边缘前陆盆地多出现干构造隐性急变带上,这对油气勘探有重要指示意义。渤海周边油气田、南襄盆地、江汉盆地油气田均位于急变带上,中国南方油气勘探前景较好的苏南块体、金衢盆地、黔南—桂中盆地、楚雄盆地等也与急变带有密切的关系。Sharp geochemical change belt reflects the geochemical characteristics of block margin of craton and so on,which reveals the boundary location more effective than geological survey.The geochemical sharp change belts may be divided into two types of apparent and hidden structural sharp change belts.Craton marginal foreland basin are common in hidden structural sharp change belts,which are of great significance in oil-gas exploration.Many oil-gas fields surrounding Bohai Bay,Nanxiang Basin,oil-gas fields in Jianghan Basin are all in the sharp change belts.The prospective areas in South China such as Sunan Block,Jinqu Basin,Qiannan-Guizhong and Chuxiong Basin etc.are also closely related with sharp change belts.

关 键 词：地球化学 油气勘探 同位素异常 区域勘探 

分 类 号：P618.130.8[天文地球—矿床学]