小寺沟是位于陕西省柞水县境内的一个自然村落，在杏坪镇辖区内，行政名为杏坪村四组，村口在307省道旁，整个村子南北走向依山势而建立，村中现有200余人，常住人口100左右，多为留守的老人和儿童，水泥路通到村中四公里处。村中有很多小岔沟如小黑沟，恭家凹、大凹等。小寺沟
河北小石门银金矿床位于小寺沟斑岩铜钼矿床的南西侧。
The Xiaoshimen silver-gold deposit is a deposit newly discovered which located in southwest of the Xiaosigou porphyry copper-molybdenum deposit.
研究了小寺沟铜钼矿床蛇纹石化蚀变岩的类型、岩性特征及其形成作用，并论述了蛇纹石化蚀变岩与铜矿化的关系。
The paper deals with the types and lithological features of the serpentinization altered rocks. The relationship between the rocks and the mineralization of copper is discussed.
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