magma source 中文意思是什麼
magma source
解釋
巖漿源-
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
高鎂火山巖接近於原始巖漿的組成，巖漿源區與地球平均成分bse的成分特徵相近，起源深度為下地幔，為該地幔巖較高程度的部分熔融（ 25 ）而形成的。高鎂火山巖處于地幔柱的軸部，經歷了橄欖石及一定程度的輝石分異結晶，並且橄欖石顯示出一定的堆晶作用。 -
The southern hainan mafic dykes are strongly enriched in lile with high nb / ta ratios, indicating a magma source reconstructed by silicic - melt through partial melting of ancient subducted slides. however, the northern hainan mafic dykes with chondritic nb / ta ratio should be derived from the fiuid - metasomatized mantle related to ancient subduction zone
瓊南基性巖脈強烈富k _ 2o等lile和具有較高nb ta比值，其地幔源區應受到了古俯沖板片部分熔融形成的硅質熔體的改造；而瓊中基性巖脈的nb ta比值接近於球粒隕石和morb值，應為古俯沖帶含水流體交代的地幔源區的產物。 -
It seems that submarine magmatism and hydrothermal activity provided abundant ore - forming material for partly strata of mogaganri and yanshiping formations during the extension of bangongcuo - nujian marginal sea in early - middle jurassic. therefore parts of jurassic mogaganri and yanshiping formations became original source of ore - forming material. in later early jurassic, the collision and collage between qiangtang block and nianqing - tanggula block made favorable conditions in geological structure, magma and ore - forming fluids for the formation of gold deposits
在早-中侏羅世班公錯?怒江邊緣海擴張過程中，海底巖漿及其熱液作用，為侏羅系木嘎崗日群和雁石坪群部分層位提供了大量的礦源，使其成為初始礦源層；早白堊世晚期，羌塘地塊和岡底斯?念青唐古拉地塊碰撞拼貼，造成了有利的構造條件、巖漿條件、成礦流體條件，形成礦床。 -
Detailed studies of tectonic unit and mineralized pedigree in each tectonic unit and each period provided that tectonic evolution passed an evolutionary sequence from early extension - transition - late compression that correspond to mineralization - sediment and submarine eruption - exhalation mineralization - moderate to acid magma and tectonic hydrothermalism that are relevant to mantle - derived magma and volcanic activities ; the mineralized pedigree can be indicated as mantle derived - inner basin and deep source - crust source ore - forming materials
對各時期、各構造單元的成礦譜系進行了詳細研究，提出構造運動演化從早期拉張過渡晚期擠壓的演化序列，分別對應于以幔源巖漿和火山活動有關的成礦作用沉積及海底噴流?噴氣成礦作用中酸性巖漿及構造熱液成礦作用；在成礦物質上由幔源盆內及深源殼源的成礦譜系。 -
On the basis of analysis and comparison between two drills, one in the center of bohai sea, another near the west shore of bohai sea, ultra - long electromagnetic wave remote sensing can be applied to forecast the interfaces between the different rocks, and help to choose the location of drill and drilling plan. the ultra - long electromagnetic remote sensing also can be applied to general investigation in the prospecting area and organizing the structural map on the basis of the profiles and plane. based on the analysis of the ultra - long electromagnetic wave curves from tanggu to dalian, the geological body to effect the high gravity and magnetic anomalies could be a mafic intrusion. the magma activity provided the heat source to organic maturation in the center of bohai sea, so the center of bohai sea could be the prospection of deep gas in bohai sea
根據渤海西岸和渤海中部兩口探井的探測和對比實驗分析，利用超長電磁波遙測技術可以根據已知探井的探測對比分析預測新探井的巖性界面，協助井位的選址和設計。另外，利用超長電磁波的探測技術可以從剖面和平面上對遠景區進行普查性探測，編制遠景區的構造圖。根據塘沽-大連探測的超長電磁波頻譜曲線剖面對比分析，證實引起渤海中部重磁異常高的地質體可能是基性超基性巖體。 -
Using the tracer ability of petro - geochemistry, the paper discusses on source characteristics and magma evolution of the high - mg volcanic rocks
利用巖石地球化學的可示蹤性，研究了高鎂火山巖漿的源區特徵、巖漿演化。 -
The paper based on synthesize domestic and foreign ' s study achievement about basalt, systematical review basalt research history, present condition about basalt formation contributing factor and it ' s magma source area quality, uses the basalt to distinguish the earth ' s mantle type, the connection basaltic magma evolution and continent dynamics, and uses the basalt to distinguish tectonic environment
系統地綜述了玄武巖的成因和巖漿源區性質、利用玄武巖判別地幔類型、玄武質巖漿的演化與大陸動力學關系，以及判別構造環境等方面研究的現狀。 -
It is believed that the distribution of gold deposits in fujian is controlled by regional deep - seated structure and precambrian volcanic flysch formation containing charcoal is main gold source rock. the accumulation of gold is closely related with yanshan granitic magma intrusion
金礦空間分佈受一定的區域深部構造單元所制約，前寒武系富含炭質的火山復理石建造是福建省金礦的主要礦源巖，金的富集成礦與燕山期花崗巖類巖漿侵入作用密切相關。
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