碱性岩浆 meaning in English
alkali magma
alkaline magma
Examples
- Calc - alkali magma
钙碱性岩浆 - Partial melting of the enriched lithospheric mantle owing to a raised geotherm caused by lithosphere thinning and following the afc process resulted in the formation of the quannan and tabei syenites in southern jiangxi
随着拉张作用加强，受软流圈物质交代过的岩石圈地幔的小比例部分熔融形成的高钾碱性岩浆经afc作用形成碱性杂岩(全南和塔背岩体) 。 - The control of the deep - seated structural - magmatic process over the metallogenic system around the middle - lower yangtze river reaches is shown as : ( 1 ) the mantle uplift belt is closely related to the general geological background of the metallogenic system ; ( 2 ) the primitive magma originated from different parts of the mantle uplift belt ( mantle ridge or mantle slope ) shows differences in style of formation and composition and results in different magmatic series and metallogenic subzones , respectively ; ( 3 ) the varying depths of structural - magmatic chambers may form a " three - layered structure " ( central type , network - like and ring - like ) and this is the primary factor that controls the different magmatic series and the concerned cluster of ore deposits ; ( 4 ) the alkaline basaltic magma derived from the mantle ridge forms high - potassium and calcium alkaline magma and shoshonitic magma due to its altering intensity of afc process with the lower crustal material , which has something to do with the copper - gold and iron - sulphur metallogenic subsystems , respectively
深部构造岩浆作用对长江中下游成矿带安徽沿江地区成矿系统的控制表现为： ( 1 )地幔隆起带与成矿系统的总体地质背景的演变密切相关； ( 2 )源于地幔隆起带不同部位(幔脊与幔坡)的原始岩浆，其生成方式和物质组成不尽相同，它们分别产生相应的不同岩浆岩系列和成矿亚带； ( 3 )不同深度的构造岩浆房组成中心式网格式环带式“三层结构” ，是控制区内不同岩浆岩系列及有关矿床集中分布的主要因素； ( 4 )源于地幔隆起带脊部的碱性玄武岩浆，由于与下地壳物质发生的afc作用强度不同，形成了高钾钙碱性岩浆和橄榄安粗岩浆，分别与铜、金成矿亚系统和铁、硫成矿亚系统有关。