摘要
赣东北地区大地构造环境复杂,成矿地质背景优越,金矿床类型多样,其中韧脆性剪切带控制的蚀变岩型金矿尤为突出,找矿潜力巨大。通过对甲路金矿区成矿地质条件分析,论述不同序次的断裂演化过程及对成矿的作用,初步认为甲路—石岭区域性大断裂是矿区重要的控岩控矿构造;矿带、矿床、矿体受不同序次的韧脆性剪切带控制。中元古界双桥山群是初始矿源层,鹅湖岩体对本区的成矿起到提供热液、矿质的作用。经分析对比,双桥山群金背景值表现出的"金亏损",预示矿区具有找大矿的可能。
The geotectonics is complicated in the northeast of Jiangxi Province, the predominant ore-forming geological background results in a great variety of gold deposits, particularly in Au-bearing altered rocks controlled by ductile ＆ fragile deformation belt, which is has a great pospecting potential. The ore-forming geological condition of Jialu gold deposit is analyzed to discuss fault evolution in different periods and its effect on ore-forming, the author believes that the Jialu-Shiling regional fault is an important structure controlling rocks and minerals;ore-zones, deposits and ore body is controlled by ductile ＆ fragile deformation belt in different periods. Shuangqiaoshan Formation of Pt2 is the original oreresources, moreover, the Ehu rock body offers epithetrmal and ore-substance for ore forming. By contrasting analysis, it is possible to find large scale deposit based on ＂Au deficient＂, shown by Au background of Shuangqiaoshan Formation.
出处
《资源环境与工程》
2009年第3期209-212,239,共5页
Resources Environment & Engineering
关键词
成矿地质条件
赣东北
甲路金矿区
找矿前景
condition of ore-forming geology
Jialu gold deposit
prospecting potential of mineral exploration
Northeast of Jiangxi Province
