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中文摘要：
东准噶尔地区的贝尔库都克锡矿产于晚石炭世花岗岩中，是石英脉型-云英岩型锡矿床，石英脉中白云母钾氩同住素年龄测定结果为296．3Ma±2．6Ma，反映成矿的时间，并证明成矿作用确实发生在陆陆碰撞过程。云英岩中的白云母钾氩年龄只有177．9Ma±2．6Ma，低于实际形成时间的年龄值，反映了成矿后研究区构造热事件的干扰。
英文摘要：
The Beiferkuduke tin deposit in the ous granitoids. It is a tin deposit of quartz-vein eastern Junggar area occurred in Late Carboniferand greisen types. K-Ar dating of mica from the tin-bearing quartz-vein yields an age of 296.3 Ma±2.6 Ma,representing the metallogenic time and suggesting the metallogenesis coeval with the continental collision. The K Ar age for mica from greisen is 177.9 Ma±2.6 Ma,obviously late than the metallogenic time,reflecting a postore tectono-thermal disturbance event.
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