According to the law of geologic work, feasibility study may be divided into detailed prospecting feasibility study, preliminary exploring feasibility study and detailed exploring feasibility study.
根据地质工作的规律，可行性研究可划分为详查可行性研究、初勘可行性研究和详勘可行性研究。
After detailed geological prospecting and evaluation on Zhangyan copper deposit, the level of investigation on the geological characteristics of deposit has been raised.
张堰铜矿床的成因应归属于与中酸性岩浆的侵入活动有关的接触交代矽卡岩型矿床，具有较明显的层控特征。
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