山东五莲七宝山窑头隐爆角砾岩筒矿化特征及意义 |
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引用本文: | 于兆安,李彩霞,张立荣.山东五莲七宝山窑头隐爆角砾岩筒矿化特征及意义[J].山东地质,2008(5):27-29. |
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作者姓名: | 于兆安 李彩霞 张立荣 |
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作者单位: | 山东省第四地质矿产勘查院,山东潍坊261021 |
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摘 要: | 五莲七宝山地区岩浆活动频繁,具有多期次岩浆活动。环状断裂与辐射状断裂发育,形成七宝山复式火山机构。隐爆角砾岩是火山活动的产物,具有良好的成矿机制和控矿作用,窑头隐爆角砾岩筒成矿时代为燕山晚期。对窑头隐爆角砾岩筒的产状、分布、规模、围岩蚀变等地质特征进行了分析,推断窑头铜(金)矿为隐爆角砾岩型低温热液小型矿床。
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关 键 词: | 火山机构 隐爆角砾岩筒 矿化特征 找矿标志 窑头 五莲七宝山 山东 |
Mineralization Characteristics and Its Significance of Yaotou Crypto explosive Breccia Rock Pipe in Qibaoshan Area in Wulian County |
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Institution: | YU Zhao - an, LI Cai - xia, ZHANG Li - rong (No. 4 Exploration Institute of Geology and Mineral Resources, Shandong Weifang 261021, China) |
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Abstract: | Yaotou crypto - explosive rock pipe was found in general survey of Nanling cooper deposit in Qibaoshan area in Wulian County. Magmatic activities are very frequent in this area accompanying with multi - phase magmatic activities. Qibaoshan complex edifice was formed by well developed circle and radial faults. It has good mineralization and ore - controlling mechanism. The mineralization age of Yaotou cypto - explosive breccia pipe was the late Yanshan period. Through study on geological characteristics, such as occurrence, distribution, size and alteration of country rocks of Yaotou crypto- explosive breccia rock pipes, it is concluded that Yaotou copper (gold) deposit solution belonged to low temperature crypto -explosive breecia type accompanying with sub -volcanic complex. |
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Keywords: | Edifice crypto - explosive breccia rock pipe mineralization characterisitcs ore probing symbols Yaotou Qibaoshan in Wulian county |
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