摘要
南天山地区穆龙套型金矿床以其巨大的储量而受到世界的广泛关注.关于该类金矿床的成因也是众说纷纭,根据作者近几年在南天山地区的调研得到的一些认识,以及其他学者对该地区穆龙套型金矿床的最新研究成果,认为南天山地区穆龙套型金矿床的形成与南天山褶皱造山带形成过程中板块边缘的大型逆冲推覆构造,特别是与其伴随的韧性剪切变质变形带具有密切的关系,而与这些构造作用伴随的花岗质岩浆的侵入作用是形成该类金矿床的必要条件.因此,该地区的金矿找矿方向也应该是在区域性的逆冲推覆构造带、浊积岩系及同碰撞花岗质岩石“三位一体”的交接部位及其附近.
In South Tianshan,the Muruntau-type of gold deposits is famous for its giant gold reserves. Opinions vary on the genesis of this type of gold deposits. On the basis of observation and study in this area, with information up to date from other researchers,the authors bring forward that the formation of Muruntau-type of gold deposits in South Tianshan area is closely related to giant nappe structures, especially to the ductile shear zone. The intrusion of granitic magmas accompanied by the orogeny is an essential condition for the forming of this type of gold deposits.
出处
《地质与资源》
CAS
2003年第3期159-165,共7页
Geology and Resources
基金
"新疆西天山地区综合找矿评价"(编号199910200218)部分成果
关键词
南天山
花岗质岩浆侵入作用
找矿方向
金矿床
板块边缘
韧性剪切带
古生代
Muruntau-type of gold deposit
verge of plate
ductile shear zone
intrusion of granitic magmas
exploration direction
