摘要
本文以几个实例为基础,研究分析了断陷盆地中金矿赋存和富集的主要地质条件:深断裂的活动及伴生的岩浆活动,前中生界含金矿源层的存在及构造活动等。并根据断陷盆地中金矿床(化)形成条件,划分了断陷盆地中金矿床的类型,强调了在断陷盆地中金矿床主要是多因复成矿床。结合中国中、新生代断陷盆地广泛发育的地质特征,提出在受深断裂控制的断陷盆地中寻找金矿,可做为金矿勘查的一个重要领域。
Based on several examples, this paper discusses on the dominant geologic conditions of the occurrence and concentration of gold deposits in faul-ted-basins: the activities of deep faults accompanied with magmatism, the existence of the Pre-Mesozoic gold-bearing resource layers and activities of structures. This paper also classifies the type of gold deposits, according to the formation conditions of gold deposits in the faulted-basins, and emphasizes that the polygenetic compound ore deposits are the main type of gold deposits in the faul-tedbasins. And considering the geologic feature that the Mesozoic-Cenozoic faulted-basins distribute widely in China, the author supports that the prospecting for gold deposits in the faulted-basins controlled by deep faults is important for gold prospection.
出处
《黄金》
CAS
北大核心
1991年第2期7-11,共5页
Gold
关键词
中新生代
断陷盆地
金矿
成矿条件
faulted-basin
deep fault, gold-bearing resource layer, polygenetic compound ore deposit.
