原始岩浆 meaning in Chinese
original magma
primary magma
primitive magma
protomagma
Examples
- Two ree distributed pattern , lree - depleted and flat , which display a specific character of typical mid - ocean ridge tholeiite , indicate that primary magma may be derived from near primary or a typical large ion lithophile element ( lile ) - depleted mantle
岩石稀土元素配分模式可分为lree平坦型和lree亏损型两类，指示了其原始岩浆起源于近原始或典型的大离子元素亏损型的地幔，为典型的大洋中脊拉斑玄武岩的特征。 - In the late stage of mineralization occurred in the hercynian period , a widespread strong modification of ores or mineralized rocks of early stage caused by intrusion of parental magma of granite - porphyry leads to further enrichment of gold element and eventual formation of the gold deposit
第二期成矿作用是在海西构造运动中，由于花岗斑岩原始岩浆的侵入活动使早期的矿石或矿化岩石受到较强烈改造，使其中的金得到进一步富集，从而构成了现在的矿体。 - 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。 - Such features can be ascribed to lower degrees of partial melting and greater melting depths . in particular , the decoupling between the lowest nag and highest tig tends to indicate residual jadeite during melting process so that na behaved as a moderately compatible element to lower the naao concentration in these rocks . this is consistent with the ree patterns in the high - ti diabases that have the highest ( gd / yb ) cn ratios than other two groups , which suggest a more important role of residual garnet in generation of the primary magmas
运用mgo = 8进行标准化，结合岩石成因理论讨论了三大系列辉绿岩的形成相对深度和熔融比例，其中高ti系列的原始岩浆形成深度大，熔融比例小，源区相对最为富集易熔组分；低ti系列的熔融深度最浅，比例最大，源区相对亏损易熔组分；过渡ti系列则介于前两大系列之间。 - High - mg volcanic rocks approach the primitive mantle compositions , and their magmatic source is close to the composition of bse , derives from the lower mantle and formed by this type - mantle rocks " fractional melting highly ( > 25 % ) . high - mg volcanic magma , formed in the axis of the emei mantle plume , underwent the crystallization differentiation of olivines and some pyroxenes ; some olivines reflect fair cumulus crystallization
高镁火山岩接近于原始岩浆的组成，岩浆源区与地球平均成分bse的成分特征相近，起源深度为下地幔，为该地幔岩较高程度的部分熔融( 25 )而形成的。高镁火山岩处于地幔柱的轴部，经历了橄榄石及一定程度的辉石分异结晶，并且橄榄石显示出一定的堆晶作用。