四川平武-南坪地区的含金地质建造特征及找矿方向

CHARCTERISTICS OF THE Au-BEARING FORMATIONS IN PINGWU-NANPING AREA, SICHUAN PROVINCE AND THE EXPLOATION TARGETS OF MICRO-DISSEMINATED GOLD ORE WITHIN THEM

通过该区岩石、地球化学及数学地质等方面的研究,认为中一晚元古界碧口群中部的碎屑岩组之上段为原生含金地质建造,而志留系茂县群之上部海相碎屑岩系转生含金建造.在褶皱带及台隆有利的构造部位,是超微粒型金矿床的成矿远景区.

This paper presents geological, petrological and geomath data of the Au-bearing formations in the Pinwu-Nanping area. The author consider: 1) the upper member of the clastic rock unit located in the middle of the Proterozoic Bikou Group is the primary Au-bearing formation and the marine clastic rock in the top part of Silurian Maoxian County Group is the transported Au-bearing for mation; 2) preferential structures are the xploration targets.