This paper has described geologicoccurrence and shape, petrology, petrochemistry and replace-alteration processes of the rock bodies.
文中对它的地质产状形态、岩石学、岩石化学和交代蚀变作用等方面作了阐述。
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According to geologic structural location, features of occurrence, rock fabric and geochemical index of basalt in Ruqi clough of Helan Mountain, it can be regarded as continental rift basalt.
The article has introduced the gas geologic features in B4 Coal Seam in Fengcheng Colliery and analyzed the correlation factors of gas occurrence regularity.