摘要
由于乌石山矿区前期关于沉积环境、矿层矿石厚度品位分布特征和变化规律等针对性研究较少,矿体局部(或细部)生产地质资料缺乏,制约了深部矿区的生产开拓。同时井下矿产资源消耗较快,面临着地质矿产资源难以接续的问题,严重影响了矿山企业的可持续发展。通过矿区矿体控制机理、矿床地质特征的详细研究,逐步揭示晚泥盆世矿区各构造矿层和矿石的空间分布、变化规律的关系,总结相关规律,提高认识,以更好指导矿山井下生产实践。经研究表明:①矿体受褶皱和断裂构造影响,两翼产状变化大,具有不对称的特点;②经过工程勘查钻探验证、比对,进一步明确了矿区地质构造赋存形态、特征,增进了构造的再认识;③矿层厚度呈现出轴部厚两翼薄,南部厚北部薄的特点,矿石品位亦然,相互呈正相关关系;④对深部矿区生产开拓和有规划、系统化生产找矿采矿工作具有一定的指示意义。
Due to the lack of specific studies on sedimentary environment,distribution characteristics and variation rules of ore thickness and grade in the early stage of Wushishan mining area,the lack of local(or detailed)production geological data of ore body restrict the production and development of deep mining area.At the same time,the loss of underground mineral resources is fast,and it is difficult to continue the geological mineral resources,which seriously affects the sustainable development of mining enterprises.Through the detailed study of the ore body control mechanism and geological characteristics of the ore deposit,the relationship between the spatial distribution and change rules of each structural layer and ore in the Late Devonian mining area is gradually revealed,the relevant laws are summarized,and the understanding is improved to better guide the underground production practice of the mine.The results show thatthe two wings of the ore body changes greatly and has the characteristics of asymmetry because of the old and fault structure.Based on engineering exploration and drilling verification,comparison,the occurrence form and characteristics of geological structure in the mining area are further confirmed,and the recognition of the structure is enhanced.The thickness of the ore layer presents the characteristics of thick axis and thin wings,thick in south and thin in north direction,and the ore grade is also positively correlated with each other.It has certain indicative significance to the production development of deep mining area and the planned and systematic production prospecting and mining work.
作者
胡军
HU Jun(Wushishan Mine,Xinyu Iron and Steel Group Co.,Ltd.,Jiangxi Ji'an 343411)
出处
《四川地质学报》
2024年第1期50-57,共8页
Acta Geologica Sichuan
基金
江西乌石山矿业有限公司2022年度降本增效技术(管理)攻关项目—地质探矿挖潜扩能专项。
关键词
乌石山
晚泥盆世
沉积环境
地质特征
指示意义
Wushishan
late Devonian
sedimentary environment
geological characteristics
indicative significance
