黔西南铊矿床（点）赋矿地层中成矿元素的若干地球化学问题研究

本文以地球化学过程基本定律为指导，根据区域和矿区外围八条剖面１６９件样品的分析数据，采用柯尔莫各洛夫非参数正态检验法，对黔西南铊矿床（点）赋矿地层中成矿元素Ｔｌ、Ａｕ、Ｈｇ、Ｓｂ、Ａｓ、Ｐｂ、Ｚｎ的丰度值进行了研究。

SOME GEOCHEMICAL PROBLEMS OF ORE-FORMING ELEMENTS IN ORE-HOST STRATA OF THALLIUM DEPOSITS (PROSPECTS) IN SOUTHWESTERN GUIZHOU

Developed in southwestern Guizhou is a mineralization zone hosting Tl-Au-Hg-Sb-As deposits. The strata-bound Tl deposits occur mainly in the Permian and Triassic Yelang Formation. Data from 169 samples of various rocks were obtained from eight sections and seven strata.The probability distribution patterns of contents of thallium, gold, mercury, antimony, zinc, lead and arsenic, their abundances, paragenetic associations of elements and superimposition strength of later geological processes were discussed and, the ore potentiality of the strata were evaluated.From the above data, the authors considered that the Emeishan Basalt Formation, the Longtan Formation, the Changxing-Dalong Formation and the Yelang Formation, which are not only the major ore-host strata, but also the original strata of thallium, gold, mercury, antimony and arsenic deposits. Systematic geochemical data for the ore-host strata are presented for the first time in southwestern Guizhou.