| Citation: | Qinfu Liu, Hongliang Xu. Resources of Kaolinite Rocks in China Coal Measures. Journal of Earth Science, 2000, 11(2): 154-157.
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The proved reserve of kaolinite rocks in China coal measures is about 1.673 billion tons. The types of kaolinite rocks contain tonstein, flintclay and soft kaolin. Their origin modes include alteration of volcanic ash, terrigenous clay deposit and weathering of coal and adjacent rocks. The organic matter and organic acid play an important role in the formation of kaolinite rocks of coal measures. The difference in properties between kaolinite rock and traditional kaolin requires different processing technologies.
| Bohor B F, Triplehorn D M, 1993. Tonstein: Altered Volcanic Ash Layers in Coal-Bearing Sequences. Geological Society of American, 1-40 |
| Feng B, 1989. Kaolinite Rock Altered by Volcanic Ash of Permo-Carboniferous, North China. Sedimentologica Sinica, 1(1): 101-106 |
| Liang S, 1995. Study on Claystone Partings Altered by Volcanic Ash in Coal-Accumulation Area of North China. China Coal Geology, 7(1): 59-63 |
| Liu Q, Zhang P, 1997. The composition and Mineralization Mechanism of Kaolinite Rocks in Late-Palaeozoic Coal Measures, North China. Beijing: Marine Press. 95-102 |
| Liu Q, Zhang P, Yang X, 1994. Microscopic Characteristics and Origin of Pelletoid Kaolinite Rock in the Xiashihezhi Formation, Huainan Coalfield, Anhui Province, East China. Scientia Geological Sinica, 3(1): 51-58 |
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| Yang X, Wang X, Shun W, 1996. China Coal Industry Encyclopaedia (Geology & Survey Volume). Beijing: China Coal Industry Publishing House. 96-98 |
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