我国显生宙含金花岗岩类岩石-地球化学特征初探

赋存于花岗岩中的金矿床在我国金矿资源中的地位极其重要，并形成我国独具特色的金矿类型。我国含金花岗岩的时代，绝大多数为燕山期，其次是华力西-印支期及加里东期；含金花岗岩体分布广泛，特别集中出露在中朝板块东缘的胶东地体内和北缘广大地区，在北方陆壳增生区及华南扬子板块内亦有分布；研究表明，含金花岗岩类以Ⅰ型花岗岩为主，其次是A型和S型；在同一地区含金花岗岩的金丰度明显高于不含金花岗岩。

PRIMARY STUDY ON PETROCHEMICAL CHARACTER OF THE GOLD BEARING GRANITES OF PHANEROZOIC EON，CHINA

The gold deposits occurred in granites play a important part in the construction of goldresotirces in china，and is a special type of the gold deposits．The gold—bearing granites weremostly formed in Yanshan period ，secondly in Variscan—Indosinian and Caledonian peri－ods．The gold—bearing granites widespreadlly distributed in the Shandong terrain of the eastmargin of Sino—korea plate．North margin of Sino—Korea plate，the continental crust—ac－cretion areas of north China and Yanzhi plate of south China．Study shows，the gold—bearinggranites can be dividec Ⅰ—type，A—type and S—type，mostly is Ⅰ—type．The gold—abun－dance of the gold—bearing granites are higher than graniteswhich don＇tbear gold in thesame place．