According to the mineralogy, petrology and isotope geochemistry of the lamprophyre and granite inclusions, it is suggested that there is a concealed intrusive mass in Xikuangshan; themica-plagioclase lamprophyre intruded after granite intrusion.
湖南锡矿山地区云斜煌斑岩是属碱钙性系列的基性岩脉，其在上侵时捕获了石灰岩包体而发生局部同化混杂，致使煌斑岩褪色蚀变。