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锡铁山铅锌矿床氧化带发育得很完善,是我国西北干旱地区铅锌矿氧化带的一个典型代表。在1958年矿床勘探过程中,原西北地质局锡铁山地质队的同志和中国科学院地球化学研究所涂光炽、李锡林等同志曾做过研究,在氧化带的矿物、分带和发育特征等方面取得了大量的实际资料和认识。现在,由于露天和地下开采,矿床氧化带几乎全部被揭露出来,这为深入研究提供了有利条件。1980年我们在青海省地质局、青海省地质研究所和锡铁山铅锌矿等单位的支持和帮助下,在前人工作基础上,对矿床氧化带进行了较系统的观察和研究。本文主要论述该铅锌矿氧化带形成的物理化学条件和成矿机理。
The oxidation zone of Xieshan lead-zinc deposit is well developed and is a typical representative of the oxidation zone of lead-zinc ore in the arid area of northwestern China. During the exploration of the deposit in 1958, comrades from the Xieshan geological team of the former Northwest Bureau of Geology and Tu Guangchi and Li Xilin from the Institute of Geochemistry, Chinese Academy of Sciences have done research on the mineralization, zonation and developmental characteristics of the oxidation zone A lot of actual data and understanding. Almost all of the oxidation zone in the deposit is now exposed due to open-pit and underground mining, which provides favorable conditions for further research. In 1980, with the support and help of Qinghai Geological Bureau, Qinghai Institute of Geology, and Xitie Shan Lead-Zinc Mine, we systematically observed and studied the oxidation zone of ore deposits on the basis of previous work. This paper mainly discusses the physicochemical conditions and metallogenic mechanism of the oxidation zone of lead-zinc ore.