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我队1:20万思茅幅区域地质调查中,在思茅县和景谷县交界的龙洞河剖面上,发现一套含浊沸石、录纤石的中酸性火山碎屑岩。初步研究,沸石族矿物主要在酸性火山岩中发育,除浊沸石外,还有橄沸石、钙沸石、钙十字沸石、水钙沸石等。绿纤石主要见于英安质凝灰岩中,经常与石英、绿帘石、绿泥石一起出现。这些火山碎屑岩保持原岩外貌,浊沸石、绿纤石等特征变质矿物肉眼不易辨认;显微镜下,原岩的结构、构造人体保存,矿物成分有较大变化。沸石取代火山玻璃或隐晶质基质,呈纤状、板条状、花
In our 1: 200 Wan Simao regional geological survey, a series of medium-acidic volcaniclastic rocks with turbid zeolite and fiberglass were found on the section of Longdong River at the junction of Simao County and Jinggu County. Preliminary studies, the zeolite minerals mainly in the acidic volcanic rocks in addition to lazily zeolite, there are chrysotile, calcium zeolite, phillipsite, water calcium zeolite. Green fiber mainly seen in the British anti-tuff, often with quartz, epidote, chlorite together. These pyroclastic rocks maintain the appearance of the original rock. The metamorphic minerals such as laponite and green fiber are not easily visible to the naked eye. Under the microscope, the structure of the original rock and the structure of the human body are preserved, and the mineral composition has great changes. Zeolite instead of volcanic glass or cryptocrystalline matrix, was fibrous, lath-like, flowers