粤东地区中生代火山岩与侵入岩的成因关系及成因类型

粤东地区中生代岩浆作用形成了遍及全区的火山岩和侵入岩．系统的地质地球化学研究表明，火山岩与侵入岩具有内在的成因联系，为火山－侵入杂岩．与不同学者划分的花岗岩类岩石的成因类型比较，区内火山－侵入杂岩，尤其是花岗岩，具有互型与Ｓ型或同溶型与改造型的过渡性特征，表明由于地球演化的复杂性，不同地区所处的大地构造背景及其成岩作用方式不同，所形成的花岗岩类岩石的地质地球化学特征存在着差异，并且这些差异具有一定的普遍性，因此不能简单地机械地套用在某一区域研究所获得的分类准则及所提出的分类．

GENETIC RELATIONSHIIP AND TYPE OF THE MESOZOIC VOLCANIC AND INTRUSIVE ROCKS IN EASTERN GUANGDONG, CHINA

Systematic geological and geochemical studies show that the volcanic and intrusive rocks dispersed over eastern Guangdong have similar characteristics in the time -space distribution,the evolutionregularity,the forming physicochemical condition, the source rocks' formation and so on. They have inner genetic relationships, and are called volcanic-intrusive complexes. These volcanic-intrusive complexes have transition characteristics of I-and S-type or Syntexis-and Transformation-type compared with the genetic types of granitoids put forward by different geologists. Because of the complicated evolutions of the earth,the geological and geochemical characteristics of granitoids in different areas on the earth might have some differences,and these differences have some universality.So we cannot use simply and mechanically the genetic classifications and distinguishing criterions obtained from the studies on some districts.