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1 前言 在墨西哥大多数沉积盆地的石油勘探中 ,地球化学和地质的石油系统方法未能得到广泛的应用。在本项研究和其它的研究中 ,地球化学数据表明在Ｔａｍｐｉｃｏ -Ｔｕｘｐａｎ和墨西哥东南盆地存在数套烃源岩和不同性质的原油。当这些数据与地质的和古地理的数据相结合 ,
1 Introduction In the petroleum exploration of most sedimentary basins in Mexico, the geochemical and geological petroleum system methods have not been widely used. In this and other studies, geochemical data indicate the presence of several sets of source rocks and different types of crude oil in Tampico-Tuxpan and the South Eastern Mexico Basin. When these data are combined with geological and paleogeographic data,