Syn - collisional plutonic rocks aie composed of granodiorite and adamellite , which exposed al 由于极度艰苦的工作条件限制,本区研究程度极低。
2.
Muhuding granodiorite is one of the mine resources , what ' s more , it supplies dynamical heat 牧虎顶岩体既是该区的au 、 ag成矿的矿源岩之一,亦为成矿提供了热动力条件。
3.
The main diagenetic stage and relevant rock types are the middle proterozoic assemblage of gneissoid granodiorite - adamellite and the sinean schistosity diorates 主要成岩期及代表性岩类有:中元古界为片麻状花岗闪长岩二长花岗岩,震旦纪为片理化闪长岩。
4.
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。
5.
( 4 ) the trace elements and ree geochemistry of the tongchang granodiorite porphyry indicate , there exists the reaction between the porphyry and the hydrothermal fluid . the hydrothermal fluid was cl - enriched solution , and flowed from the porphyry center to contact zone ( 4 )德兴铜厂斑岩体微量元素和稀土元素地球化学特征表明,该岩体发生了流体?熔体作用,分异出来的流体是一种相对富氯的流体,同时成矿流体的流向是从岩体中心向接触带方向流动。
6.
The microscopical observation proves that the main types of granitoid rocks are granodiorite and quartz monzodiorite , and the enclave is mainly monzodiorite . the rock - forming minerals are mainly k - feldspar , plagioclase , amphiboie , biotite , quartz , magnetite , titanite , apatite , epidote , etc . the zonation of the feldspars is very popular . the dark - colored minerals , such as biotite and titanite , have been highly oxidized 通过对本区花岗岩类样品进行显微观察研究,知其主要的岩石类型为花岗闪长岩、石英二长闪长岩,其中的岩石包体主要为二长闪长岩,其造岩矿物为钾长石、斜长石、角闪石、黑云母、石英、磁铁矿、榍石、磷灰石和绿帘石等,长石中环带现象比较常见,黑云母、榍石等暗色矿物颜色较深,表明其氧化程度较高。
7.
This process was propitious to enrich , activate , transport the copper . in different alteration granodiorite porphyry , sio2 , k2o , cu , mo are depleted in the fresh and weakly altered rock , and are enriched in the strongly altered rock , cl is also enriched in the strongly altered rock . but na2o and fe are extracted from the porphyry into the ore - forming fluid , especially the presence of fe is in favor of cu deposition 在铜厂岩体不同的蚀变带中, sio _ 2 、 k _ 2o 、 cu 、 mo等从新鲜斑岩甚至弱蚀变带中带出,而在强蚀变带强烈富集, cl同样有在强蚀变岩石中富集的趋势;而na _ 2o 、 fe从斑岩体中带出,进入流体相中,流体中大量fe的存在,有利于铜的沉淀、富集成矿。