论文部分内容阅读
本文叙述的是苏联萨亚克组矿床的情况。萨亚克组矿床赋存于同名的地堑—地向斜的东部和中部。后者由萨亚克系中石炭统海相沉积组成,不整合地产于中古生代,局部于前古生代基底之上,上述沉积层为一组不等粒的花岗质砂岩、复矿砂岩和钛磁铁矿砂岩、砾岩、凝灰—泥砂岩、火山凝灰岩和岩屑凝灰岩、灰岩以及灰质砂岩。在塔斯蒂库杜斯克系剖面中(据Γ.П.布尔杜科夫)灰岩与灰质砂岩组成明显的碳酸盐层,个别地段厚度达100—120米。萨亚克地堑—地向斜中之火山—沉积岩被花岗闪长岩、闪长岩及花岗岩成分的侵入体所切穿,其中以
This article describes the Soviet Union Yayak Group deposit situation. The SAYAK deposit is hosted in the ecliptic graptod - the eastern and central syncline. The latter is composed of the Middle Asia Carboniferous marine sediments of the Sakya Basin and is unconformably produced in the Mesozoic and Cenozoic basalts. The above sedimentary layer is a group of granitic sandstone with unequal grain size, complex ore sandstone and titanium Magnetite sandstone, conglomerate, tuff-mudstone, volcanic tuff and lithic tuff, limestone and gray sandstone. The limestone and limestone sandstones in the Tastiukudsk section (according to Γ.П. Burdukov) make up a distinct carbonate layer, with individual sections reaching a thickness of 100-120 meters. The Sagya Graben-syncline volcanic-sedimentary rocks are cut by intrusions of granodiorite, diorite and granite components, of which