江苏省铜山—石砀山铜钼矿床成矿特征及深部资源预测

Metallogenic characteristics and potential evaluation of deep resources in Tongshan-Shidangshan copper-molybdenum deposit,Jiangsu Province

江苏铜山铜(钼)矿是与燕山期中酸性杂岩体有关的高—中温热液矽卡岩型矿床。矿体主要赋存于矽卡岩带中,少部分赋存于蚀变黑云母石英闪长岩中。根据矿床成矿特征,结合矿区物、化探异常信息,总结了矿床预测模型,并对矿区深部及外围进行预测。采用矿床模型地质体积法对深部预测资源量进行估算,预测深部铜金属量33611.57t,钼金属量9331.35t。

The Tongshan copper-molybdenum deposit is a hydrothermal skarn deposit with high to medium temperature, which was formed in the deep environment, spatially was associated acid complex rock bodies in Yanshan Period. The ore bodies dominantly occured in the skarn zone and partially occrued in the alteration of biotite quartz diorite. According to the analysis of metallogenic characteristics of the deposit, combined with geophysical exploration, geochemical exploration and remote sensing anomaly information, we summed up the deposit prediction model and the prediction of the deep and periphery of mining area. Using the model of mineral deposit geological volume method for the estimation of the deep resource prediction, it suggests that the amount of copper and molybdenum metal resources in deep are 33611.57 and 9331.35 tones, respectively.