1) alkali series
碱性岩类
1.
Geological setting and main features of alkali series in Panzhihua-Xichang region are outlined.
概述了攀西地区碱性岩类产出的地质背景,岩体的主要特征。
2) syntype alkaline rocks
同类碱性岩
3) alkaline granitoids
碱性花岗岩类
1.
In view of some disputes that have cropped up in the naming of A_type granite in China, this paper suggests that the term alkaline granitoids should be used to replace the name A_type granite.
针对目前国内A型花岗岩命名中出现的一些问题 ,建议以“碱性花岗岩类”一词代替A型花岗岩。
4) alkali ne magmatic rock
碱性岩浆岩
6) alkaline rocks
碱性岩
1.
Discovery of late Early Triassic alkaline rocks in the Gankugou area, northwestern Qiangtang, Tibet, China;
西藏羌塘西北部干枯沟地区早三叠世晚期碱性岩类的发现
2.
In recent years, significant advances have been made, including the further classification of the deposit, the evolution of the ore-forming fluid, the age determination of the ore precipitation, and the relationship of the deposit with alkaline rocks, and with porphyry and other types of ore deposits.
近年来对该类型矿床的深入研究 ,包括对该类矿床的进一步分类、流体形成演化、成矿时代、与碱性岩之间的关系 ,以及与斑岩型及其他类型矿床之间的内在联系等方面均取得了重要进展。
3.
In this paper,the author assured the concept of gold deposits associated with alkaline rocks,discussed the characteristics,origin and evolution,and the paragenetic relationship to calc alkaline rocks of the alkaline rocks related to gold mineralization,analysed the tectonic setting of alkaline rocks and their related gold deposits.
厘定了碱性岩型金矿床的概念 ,总结了与金矿床有关的碱性岩特征 ,从地球动力学角度 ,分析了碱性岩及其有关矿床形成的构造环境 ,讨论了碱性岩的起源演化及其与钙碱性岩共生的内因。
补充资料:碱性岩
碱性岩 alkalic rock 火成岩的一种 。二氧化硅含量较低 ,碱质含量较高(Na2O+K2O> Al2O3 ) 。一般呈浅灰 、浅绿或浅红色。主要浅色矿物为碱性长石(微斜长石、正长石、钠长石),暗色矿物为霓石、霓辉石、钠铁闪石、钠闪石等,副矿物有方钠石、锐钛矿和磷灰石等。可分为深成碱性岩,如霞石正长岩;浅成碱性岩,如霞石正长斑岩;喷出碱性岩,如响岩等。一般产在地壳构造运动较弱的稳定地区,很少形成独立岩体,多与基性岩、超基性岩、碱性正长岩、碳酸岩一起形成杂岩体。与之有关的矿产有铌、锆、稀土、铁、钛、磷等。可利用其钾含量高、二氧化硅含量低的特点,制作化肥和陶瓷原料。 |
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