摘要
笔者从大厂矿田的地质特征、成矿规律和成矿作用三个方面梳理总结近三十年来该矿田的学术研究成果,可以看出一是广西大厂矿田地层控矿明显,泥盆系为成矿物质提供重要来源,也是有利的赋矿层位;二是地表矿化以及生产揭示矿(化)体产于一定的层位,矿(化)体的侧伏方向与北东向、北西向断裂的走向基本一致,岩浆岩体的展布受控于北北西向的深大断裂,大厂倒转背斜及次级断裂控制了矿体的倾伏方向,构造交汇部位矿化良好;三是大厂隐伏岩体是一含成矿元素的花岗岩体,也是锡多金属矿床成矿物质的重要来源,另外规模较大的岩浆体更是为早期矿化和围岩中成矿物质的活化、迁移和富集提供强大的热驱动力和有利的物理化学条件。
According to the 3 aspects of geological feature, metallogenetic rule and metallogenesis ofDachang orefield, we have a summing-up of tlie academic study results of tliis orefield in recent 30 years, which shows 1. the ore control of strata is clear, Devonian strata are the important material source of metallogenesis and the advantageous ore-bearing beds; 2. The surface metallogenesis and production indicate that tlie orebodyis in a certain horizon, the plunging direction of orebody （ metallogenesis ） is consistent basically witii NE, NWfault striking, the extension of magmatic rock body is controlled by the NNW macrofauticline and the secondar fault have controlled the plunging direction of orebody, the metallogenesis is good in the structure intersection place ; 3. the Dachang buried rock body is a granite with metallogenetic element and the important metallogenetic material source of Sn multimetallic deposit, moreover the larger scale magmatic body provides the intense heat agent and advantageous physical-chemical conditions for the activity, migration and concentration of t!ie earlier metallogenesis and metallogenetic material in the wall rock.
作者
邹芬
ZOU Fen(Guilin University of Science and Technology,Guilin 541006)
出处
《云南地质》
2018年第3期276-281,共6页
Yunnan Geology
