摘要
本文主要研究了贵东岩体花岗岩的成因类型,认为该岩体花岗岩是复成因的,其中:隘子岩体花岗岩为I型;下庄岩体、γ_5^(2-3),γ_2^(3-1)花岗岩为S型;鲁溪岩体介于I型与S型之间。岩石成因类型不同,是造成该岩体东西部铀成矿差异的主要原因。此外,在隘子岩体角闪石黑云母花岗岩中首次发现了较多的自然金,经对比证实,隘子岩体具有产金花岗岩基本特征,有必要在该区进行金矿普查工作。
The genetic type for Guidong granite massif is mainly studied in this paper. It is considered that the granite massif is of polygenesis in which Aizi granite belongs to I-type; Xiazhuang, γ_5^(2-3) and γ_5^(3-1) granite belong to S-type; Luxi granite is the one between I-type and S-type. The main reason resulting in the difference of uranium mineralization between the eastern and western parts of the granite massif is due to the different genetic types for different granite bodies. In addition, nature gold was first found in Aizi hornblende biotite granite. After comparison it is confirmed that Aizi granite possesses the basic characteristics of gold-productive granite, so it is necessary to undertake the prospecting of gold deposit in this area.
出处
《铀矿地质》
CSCD
北大核心
1991年第4期223-234,共12页
Uranium Geology
关键词
岩体
花岗岩
类型
成矿
Granite, Genetic type, Metallogenetic specialization, Guidong granite massif
