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Coal Accumulating Environment of Shallow Delta Deposits During the Late Period of Early Permian in Yu County, Henan
1986, 14(6): 2-9.
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Kaolinite in Permo-carboniferous Coal Seams in Western Shandong
1986, 14(6): 8-12.
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Genesis of purple Porphyry in Upper Shihhotze Formation in Yu County
1986, 14(6): 13-19.
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Some Types of Stractures Controlling Coal Seam On Gliding Tectonics
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1986, 14(6): 19-24.
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Formation Conditions of Shallow Methane Reservoir in Coal Seam
1986, 14(6): 31-35.
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Approach to Determine Proved Reserves of Coal in Detailed Survey Stage
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1986, 14(6): 39-43.
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An Introduction to Regional Hydrogeological Characteristics of China's Coal Deposits
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1986, 14(6): 44-47.
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Wave Impedance Profile of Coal Field
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1986, 14(6): 51-61.
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Trial Discussion on Safety of Drilling with wire Coring in Coal Field
1986, 14(6): 66-68.
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