地幔隆起 meaning in English
mantle bulge
Examples
- 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。 - There are two series of cu , au deposits , the stratiformed deposits and the intrusive - related ones in the mineralization belt of the middle and lower reaches of the yangtze river area . comparative studies on forming geodynamic backgrounds , geological and geochemical conditions of the ore - forming systems have been undertaken in this paper . the stratiformed deposits were formed in hercynian period by submarine exhalation - sedimentation sedex of hot brine through the synchronous basement faults in a tensional environmental , and the intrusive - related deposits were formed in yenshanian in a tensional or a transitional period to tensional environment during the upper mantle doming by water - rock interaction and complex transport - chemical reaction dynamic processes , the ore - forming fluids were mainly magmatic water from melt - fluid partition and some meteoric water
成矿流体系统形成的地球动力学背景及地质地球化学条件对比研究表明，赋存于石炭系中的层状铜金矿床是海西期拉张背景下热卤水沿同生断裂经喷流作用形成的海底喷流热水沉积矿床与燕山期中酸性侵入岩有关的铜金矿床是在上地幔隆起张性或向张性过渡背景下形成的，是中酸性岩浆经熔体流体分离作用形成的岩浆热液与大气降水混合，经水岩作用等复杂的输运和化学反应耦合过程的动力学产物。 - The authors hold that the joint actions of numerous factors such as the upper mantle uplifted zone ( the mantle thinned zone of lithosphere ) , the upper mantle anomalous area ( relatively low - velocity area ) , the uplifted zone of intracrustal high - conductivity layer , the deep fault ( shear zone of lithosphere ) , the margin of the crust - upper mantle uneven masses , the basement uplifted area reflected by gravity high , the magmatic belt and tectonic intersection reflected by skipped magnetic field , control the distribution of auriferous skarn deposits and copper ( associated with gold ) skarn deposits
作者认为，上地幔隆起带（岩石圈地幔减薄带） 、上地幔异常区（相对低速区） 、壳内高导层隆起带、深断裂（岩石圈剪切带） 、地壳上地幔不均匀性块体的边缘、重力高反映的基底隆起区、跳跃磁场反映的岩浆岩带和构造交汇处等诸多因素的共同作用控制著含金夕卡岩矿床和铜伴生金夕卡岩矿床的分布。