A study indicates that it should be quartz keratophyre with blastoporphyritic and blastorhyotaxitic structure and sedimentary contact with the wallrock which should be belong to the Guanyinya Formation.
出露于石棉田湾乡杜河坝—菩萨岗一带的石英角斑岩 ,以前被认为是侵入的花岗岩 ,其所在地层组为苏雄组。
While carrying out a 1: 50000 regional geological survey in the Xingguo area, the writers discovered several layers of metamorphosed quartz keratophyre in this suite of strata, from which zircon samples were subsequently.
笔者在兴国地区进行１：５万区域地质调查时，发现该套地层中含多层（套）变石英角斑岩，经对其所含锆石进行Ｕ－Ｐｂ法同位素年龄测定，获得１１３２Ｍａ、９９３Ｍａ、７２３Ｍａ ３组同位素年龄资料，为赣中南地区之晚元古代地层时代的进一步确定提供了确切年龄数据。
whether volcanic rocks from Xiong’er Group are spilite-keratophyric series,from which the conclusion has beem given that Xiong’er Group is not a spilite-keratophyre series, Authors conclude that al-bitized volcanic rocks in Xiong’er Group were formed by hydrotherma al.
作者依据熊耳群的基本特征，对“熊耳群火山岩是否属细碧角斑岩系”这一有争议的问题，进行了较为广泛的讨论，并从中得出“熊耳群火山岩不是细碧角斑岩系”的结论。