摘要
沙溪和冶父山同处郯庐断裂带内部,两个地区均具有极为发育的石英脉体,成矿地质背景相似.但含矿性迥然不同.本文在这两个地区岩体特征差别研究的基础上,重点讨论了两区脉石英特征的一系列差异,研究的结果表明:沙溪区石英脉体的形成受控于持续且稳定的区域应力场的作用;冶父山区石英脉体的形成受控于短期多变的局部应力场的作用.两个地区脉石英在包裹体及红外光谱等特征上均存在明显的差别,这些差别可作为石英脉体含矿性评价的准则.
Both Shaxi and Yefushan are located within the TanchengLujiang deep fault belt. Stockwork veins are developed in both areas, The geologic setting are quite similar, but the ore - bearing characteristics are much diffierent. The contrasting investigations of intrusive rocks and the stockwork veins between the two areas have shown that the quartz - veins in Shaxi are formed in a stable regional tectonic - stress field, and the quartz - veins in Yefushan are formed in a temporal and changeable local tectonic - stress field. The characteristics of inclusions and infra - red spectrum of quartz in both areas are different. These distinctions can be used as criteria in prospecting stockwork veins.
出处
《地质找矿论丛》
CAS
CSCD
1990年第1期1-11,共11页
Contributions to Geology and Mineral Resources Research
