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本文利用Rb－Sr法计时原理，分析测定了贵州烂泥沟大型卡林型金矿床不同成矿阶段的石英流体包裹体与方解石脉矿物的Rb、Sr同位素组成，获得一条线性较好的Rb－Sr等时线，其年龄值为105．6Ma，这一结果为我国卡林型金矿的研究提供了重要依据。
In this paper, the Rb-Sr isotopic compositions of quartz fluid inclusions and calcite veins in different mineralization stages of the Lannigou large-scale Carlin-type gold deposit in Guizhou Province are analyzed and measured using the time-counting principle of Rb-Sr method. A linear Rb-Sr Isochord, the age value of 105.6Ma, this result provides an important basis for the study of Carlin-type gold deposits in China.