鲁北平原南部QK4钻孔岩心特征及第四纪地层划分
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Core characteristics and Quaternary stratigraphic division of borehole QK4 in southern Lubei Plain
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图2. QK4孔岩性柱、自然伽马、电阻率、密度、自然电位及沉积环境分析 |
Fig.2. Lithological column, natural gamma, resistivity, density, natural potential and sedimentary environment analysis of borehole QK4 |
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