【摘 要】
：
Traditional surface exposure methods,such as trenching and exploratory shaft sinking,have their own limitations and do harm to the environment.Thus,shallow dril
【机 构】
：
Beijing Institute of Exploration Engineering,
【出 处】
：
Acta Geologica Sinica(English Edition)
论文部分内容阅读
Traditional surface exposure methods,such as trenching and exploratory shaft sinking,have their own limitations and do harm to the environment.Thus,shallow drilling was applied in geological mapping to expose shallow orebody and to determine the thickness of top soil layer,and then to illustrate bedrock lithology and geological
Traditional surface exposure methods, such as trenching and exploratory shaft sinking, have their own limitations and do harm to the environment.Thus, shallow drilling was applied in geological mapping to expose shallow orebody and to determine the thickness of top soil layer, and then to illustrate bedrock lithology and geological
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