Hierarchy of intrusive rocks in Fujian province

By using the new theory and method of hierarchical division and clustering, the intrusive rocks in Fujian province are divided into 110 units and incorporated into 27 super units （sequences） and 21 independent rock units and a hierarchy system of rock units of the whole province is preliminarily established. In the province, M , I , S and A type granites are all well developed; large scale volcanic eruption is generally lacking in S type granites; whereas I andA types and transitional type of I and S types have the features of originating after or simultaneously with volcanic activity and from the same source as volcanic rocks and being equivalent in size and areal extent to volcanic rocks. Different hierarchical units of the intrusive rocks formed in different periods have different mineralization types and scales.