摘要
为了解赣北地区锡矿成矿地质特征及成矿规律,在收集前人工作成果的基础上,对锡矿密切相关的围岩含矿建造、控矿构造及岩浆岩成矿专属性开展分析与研究。结果表明,赣北地区新元古界双桥山群和晋宁期花岗岩是锡多金属矿成矿物质的基础,矿田或矿集区主要位于NW向(或多组复合)构造控制复式杂岩体岩基之中,矿床或矿体则主要受白(二)云母花岗岩岩瘤(脉)制约,主要分布于岩体接触带附近,尤其在白(二)云母花岗岩体上拱凸的内外接触带更为明显,白垩纪晚期伸展作用形成的NNE向构造往往控制着矿体展布。本研究成果可为今后的锡矿找矿工作提供依据和方向。
In order to comprehend the metallogenic geological characteristics and metallogenic regularity, on the basis of the collection of previous work results, the analysis and study of the ore-bearing construction, ore-controlling structure and magmatic metallogenetic specialization of surrounding rocks closely related to tin ore are carried out. The result shows that the Neoproterozoic Shuangqiaoshan Group and the Jinning period granite in the Northern Jiangxi are the basis of the tin polymetallic metallogenic materials. Ore field and ore concentration area is mainly located in the composite bodies and batholith, which is controlled by the NW(or multiple groups of composite) structure. The ore deposit or orebody is mainly restricted by the muscovite(two-mica) granite nodules(veins) rock mass, and is mainly distributed near the contact zone of rock mass, especially in the inner and outer contact zone arch convex on the muscovite(two-mica) granite rock mass, and the NNE structure formed by extension environment in the late Cretaceous often controls the distribution of orebodies. The result of this study can provide basis and directions for the future tin ore prospecting in this area.
作者
周贤旭
胡志戍
ZHOU Xianxu;HU Zhishu(The 2nd Geological Brigade of Jiangxi Bureau of Geology,Jiujiang 332000,China)
出处
《东华理工大学学报（自然科学版）》
CAS
2023年第1期40-47,共8页
Journal of East China University of Technology(Natural Science)
基金
江西省地质局地质勘查基金项目(2021AA16)。
关键词
成矿控制
成矿规律
锡矿
矿床类型
赣北地区
metallogenic controlling
metallogenic regularity
tin mining
the type of deposits
Northern Jiangxi
