镁铝榴石形成于滇东南晚第三纪岩简状的玄武质次火山角砾岩中，角砾岩成分复杂，其中包含有镁铝榴石和铬透辉石等可作宝石材料利用的角砾和晶屑。
The rubbles and crpetals of prrope and chrome-diopsidewhich can be used as gem materials are found in the breccias whose component is very complex.
向熔岩过渡的火山碎屑岩主要为角砾熔岩和凝灰熔岩等。
The pyroclastic rocks which transit to lava mainly have breccia lava and tuff lava etc.
据角砾灰岩的岩石学特征及其与围岩地层的组合关系，该角砾岩主要属岩屑流和浊流沉积的深水碳酸盐岩。
According to their petrological characteristics and relations with surrounding rocks, we can regard them as deep water carbonate rocks of the debris flow and turbidity current sediments.
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