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The relationship between kaolinite structure and the temperature of thermal transformation of phase was discussed in this paper through grinding and henting treatment. The results show that the structure of kaolinite is destroyed rapidly with mechanical grinding time, and the kaolinite structure collapses completely after 1 h grinding. The temperature of thermal transfomlation of phase of decreases with the destruction of kaolinite structure. This result has a great significance for the utilization of kaolinitic rocks in China coal measures. 相似文献
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利用偏光显微镜对大同煤田太原组9号煤层底板高岭岩的岩石学特征和成因进行了研究。在显微镜下识别出碎屑(包括陆源碎屑、火山石英晶屑、火山黑云母晶屑、脱玻化的"燧石状"玻屑)、隐晶高岭石团块、高岭石晶屑、高岭石基质四大结构组分;研究认为组成此层高岭岩的岩石类型主要为凝灰质团块状高岭岩,在顶部发育有薄层长石假象型晶粒高岭岩和凝灰质隐晶高岭岩,中间夹薄层凝灰质砂岩;该层高岭岩是经盆底水流改造的沉凝灰物质蚀变而成。特别是首次提出:该层高岭岩中大量发育的团块是由硅铝质玻屑蚀变而来的隐晶质高岭石集合体,由于经受了流水改造作用,其火山成因证据已经消失殆尽。 相似文献
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