地质学
矿物
地球化学
分布(数学)
采矿工程
地球科学
数学
数学分析
冶金
材料科学
作者
Hamed M. El-Shatoury,Mohammad L. Al-Eryani
标识
DOI:10.1016/0301-9268(78)90084-0
摘要
Metallic mineral commodities and industrial rocks and minerals are known in Yemen from different geologic environments. The mineral distribution maps prepared during this study revealed that Cu mineralization is in common association with either Au, Co-Ni, or Pb and Zn. The Cu-Au association occurs in many areas within the Tertiary trap volcanics whereas the Cu-Co-Ni and Cu-Pb-Zn-Ag associations are restricted to rocks of the basement complex. Cassiterite-bearing quartz veins are found in granitic rocks near Sa'ada. Except for the Fe ore mined near Sa'ada, which is essentially the oxidation product of a massive pyrite-pyrrhotite body of Precambrian age, other Feoxide-rich beds occur in several areas where the Tawila Sandstone (Cretaceous) is cropping out.
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