论文部分内容阅读
曹四夭钼矿床位于华北地台北缘内蒙古台隆凉城断隆东部。钼矿体主要赋存于曹四夭花岗斑岩外接触带的集宁群黄土窑组浅粒岩、变粒岩中,燕山期中酸性岩浆侵入活动与成矿关系密切。初步估算钼金属量为176万t。笔者在分析曹四夭钼矿成矿地质背景、矿体地质特征、物化探异常特征等基础上,提出了该矿床成因为具“二元结构”的斑岩型钼矿床,并进一步总结了找矿标志。
Caosioyao molybdenum deposit is located in the northern margin of North China Terrace in Inner Mongolia, Taiwan Lung Longcheng broken east. Molybdenum ore bodies mainly occur in the shallow granites and granulites of the Jimeng group loess kiln group in the outer contact zone of the Caosiyan granitic porphyry. The intermediate-acid magmatic intrusions in the Yanshanian period are closely related to metallogenesis. The preliminary estimate of molybdenum metal is 1.76 million tons. Based on the analysis of the mineralization geological background, the geological characteristics of the ore bodies and the geophysical and geochemical anomalies, the authors put forward the porphyry-type molybdenum deposit with “dual structure” as its origin and further summarize Find a sign of mine.