中国钼业2016，Vol.40Issue(1)：13-20,8.DOI:10.13384/j.cnki.cmi.1006-2602.2016.01.003
华北板块北缘曹四夭超大型钼矿床成矿母岩及成矿作用
MOTHER ROCK AND MINERALIZATION OF CAOSIYAO SUPER LARGE DEPOSIT
谢国兴 1丁军召 1付恒一 1杨位坤 1付治国1
作者信息
- 1. 河南省地质矿产勘查开发局第二地质勘查院,河南郑州450000
- 折叠
摘要
Abstract
The mother rock of Caosiyao molybdenum deposit is granite porphyry with less spots that developed from the late Yanshan-Jurassic of Mesozoic era (137 ±12)Ma, and the chemical composition is very much the same with miniature granite porphyry rock -the mother rock of the other ten large molybdenum deposits;The rocks are Pacific extra-hypabyssal intrusive rocks of magnesium calcium alkali series with the intrusive depth of less than 3 km, which are high in acid and potassium , low in alkali and calcium.Geochemical abundance value of Mo is 30.1 times of which in the Weino Gladof World granite in the rock ,which proved that granite porphyry is the product when the initial the upper mantle magma developed to the advanced stage .Source of ore-forming materials is ore-forming par-ent rock which is formed by plenty of mid-deep metamorphic molybdenum rocks of Archean era Jining Gr .During its migration towards the earth surface ,magma of the mother rock water-rock changed into gas-hydrothermal and widely spread into the surrounding rock ,so almost all the minerals of the lava were kept in the surrounding rock ,and de-veloped into super large deposits .关键词
华北板块/超大型钼矿床/成矿母岩/燕山期/吞噬太古界/水岩交换/充填/成矿作用Key words
north China block/super large molybdenum deposit/mother rock/Yanshan epoch/devouring archae-an era/water-rock exchange/filling/mineralization分类
矿业与冶金引用本文复制引用
谢国兴,丁军召,付恒一,杨位坤,付治国..华北板块北缘曹四夭超大型钼矿床成矿母岩及成矿作用[J].中国钼业,2016,40(1):13-20,8.
