Meso proterozoic carbonate - hosted disseminated ( mpcd ) gold deposits are a new type of gold deposit which is discovered in recent years 冀东地区以中元古代碳酸盐岩为容矿岩的浸染型金矿床是近年来新发现的金矿床类型。
There exists a series of meso - neoproterozoic tectonic melanges and ophiolitic melanges in jianping - fuxin - tieling area of northern liaoning province 摘要辽宁北部建平阜新铁岭地区，存在一套中新元古代构造混杂岩系、蛇绿混杂岩。
The ree mineralization suddenly occurred and largely distributed on the earth in middle proterozoic metallogenetic epoch in the evolution of the earth 稀土元素成矿与地壳的构造运动密切相关，稀土在中元古代具有大规模暴发性成矿特征。
The grenville - aged orogen is a tie to link most of the continental blocks in rodinia , which existed during the period from late mesoproterozoic through early neoproterozoic Grenville期造山带存在于中晚元古代，是连接rodinia各陆块的纽带。
The mentioned volcanic activity in yangzhuang formation is expected to propel the study of the proterozoic chronology and tectono - sedimentary evolution of north china 杨庄期火山活动可能提供华北地区中元古代年代地层学和构造沈积演化研究的新证据。
The occurrence of the dyke swarm predominately distributed in central zone of the ncc , which is the important geological signature of the ca . 1800 . ma event 在华北克拉通地区广泛发育早元古代基性岩墙群，目前对这些基性岩墙群的系统研究相对较为薄弱。
Stratum composition in xiaoqinling represents early precambrian crystal basement and mesoproterozoic era cover rocks of the typical north china craton 小秦岭区内地层具有典型华北型早前寒武结晶基底和中元古代以来的盖层结构，不发育晚古生代、中生代构造层。
The minerogenetic epoch lasted from paleoarchean to sinian , with neoarchean , paleoproterozoic and mesoproterozoic - qingbaikouan being the culmination periods 成矿时代从古太古代到震旦纪，但以新太古代、古元古代、中元古代青白口纪3个地质时期为成矿高峰期。
The paleoproterozoic wangjiahui granitoid intrusion , west segment of wutai mountains , consists mainly of quartz monzodiorite , granodiorite , monzogranite and adamellite 五台山西段王家会古元古代花岗岩侵入体主要由石英二长闪长岩花岗闪长岩和二长花岗岩组成。
