丹寨汞金矿床卤素元素与古油藏关系探讨

丹寨汞金矿床是与古油藏共生的金属矿床 ,产在古油藏的边缘 ,矿区内发育大量的油气演化产物沥青、含烃有机包裹体等有机质 ,可见该矿床与古油藏有密切的地质关系。对矿区内卤素元素地球化学特征的研究结果表明 ,矿区内溴、碘的富集程度远比氟、氯高 ,这与古油藏油田卤水的形成演化有关。而且 ,油田卤水是该矿床成矿热液的主要来源。

A DISCUSSION OF THE RELATION BETWEEN HALOGEN ELEMENTS OF DANZHAI MERCURY-GOLD DEPOSIT AND PALAEO-OIL POOL

The Danzhai Hg|Au deposit is associated with a paleo|oil pool. It was developed in the marginal area of the paleo|oil pool. There has been developed a great deal of organic matter in the mining district, including bitumen and hydrocarbon|bearing inclusions. There is a close geological relation between this deposit and the paleo|oil pool. The geochemical characteristics of halogen elements in the mining district indicate that the enrichment of Br and I is much higher than that of F and Cl in the deposit, which seems to be related with the formation and development of the paleo|oil pool.;