source mantle 中文意思是什麼

source mantle 解釋
地幔巖漿源
  • source : n 1 源頭，水源，源泉。2 根源，本源；來源。3 原因；出處；原始資料。4 提供消息的人。5 血統。vt 〈美...
  • mantle : n 1 披風，罩衣。2 一層（被覆）幕，蓋罩。3 （煤氣燈）紗罩;【解剖學】外表；【動物；動物學】套膜；（...
  1. The geochemical characteristics of gabbros from the jinshajiang ophiolitic melange indicate that they were derived from a mantle source different from that of volcanic rocks, which may be a product in the ocean rift in the earlier stage

    東竹林蛇綠混雜巖中輝長巖地球化學特徵表明，它與火山巖不同源，可能是洋盆裂谷初期的產物。
  2. 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。
  3. Through the study of characteristic of macroelement, microelement, rare - earth element, oxyhydrogen isotope, sulfur isotope, lead isotope, fluid inclusion etc, a conclusion can be drawn that metallogenic substance comes from the upper mantle with mixing of some substance from the upper crust latter. it is likely to have the same source with the surrounding rock

    通過對礦床的常量元素、微量元素、稀土元素、流體包裹體特徵、氫氧同位素、硫同位素、鉛同位素等特徵的研究，認為成礦物質主要來源於上地幔，與周圍巖石存在著同源的可能性，後期有一定的上地殼物質混入，成礦作用有三期，分別與區內的花崗巖、二長花崗巖脈、雲煌巖脈有關。
  4. 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。
  5. ( 3 ) the mineral source was provided by both lower crust, upper mantle and upper crust, obviously from crust - mantle mixing

    （ 3 ）礦田中的成礦物質的不僅來自於下地殼和上地幔，而且還來自於上地殼，具有殼幔混合特徵。
  6. 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。
  7. Substance of rock - forming and ore - forming in both jianchaling and jinchuan nickel deposit mainly derived from the upper mantle, but the former source is relatively depleted mantle. on the other hand, there exsisted the crustal contamination during the formation of the two mineral deposits, the later contaminated poorly and gave priority to deep contamination. ( 5 ) by the comparative study of jianchaling with jinchuan nickel sulflde deposit, it is pointed that small basic - ultralbasic complexes which dis

    （ 5 ）通過對煎茶嶺和金川鎳礦床的比較研究，結合對國內外有關巖漿鎳礦床的比較分析，根據我國的地質特點，提出沿較老地塊邊緣分佈的特別是沿華北地塊北緣分佈的基性?超基性小雜巖體，是找尋大而富的硫化鎳礦床之有利找礦方向；而對較老地塊內部的鎂鐵質侵入體，亦應給予高度注意。
  8. 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。
  9. The mantle source for the mesozoic mafic volcanic rocks in yanshan area exhibit transition character in space and time : the mantle source components vary from subduction - related metasomatic components and emi components through dominant emi components and slight subduction - related metasomatic components to emi components ; spatially, mantle source of the volcanic rocks show a regular variation trend from an enriched lithospheric mantle with emi - like signatures in the western shandong province through emi and / or subduction - related metasomatic components in yanshan area to subduction - related metasomatic lithospheric mantle in the hinggan - mongolian orogen

    燕山地區中酸性火山巖則來源於地殼，與玄武質巖漿底侵作用關系密切。 3燕山地區火山巖源區組分在時空上具有一定的演化規律：在時間上，從早期俯沖交代地幔及emi的參與，經中期以emi佔主導及極少量俯沖交代組分的階段，演變到晚期以emi為主，可能有少量軟流圈貢獻的組分，再到晚白堊世以軟流圈為主。
  10. The mafic rocks have high ( 87sr / 86sr ) j ( 0. 7046 - 0. 7077 ) and 207pb / 204pb ( 15. 47 - 15. 67 ), but relatively low in ( 143nd / 144nd ) i ( 0. 5125 - 0. 5127 ) and 206pb / 204pb ( 18. 26 - 18. 52 ). the negative correlation between 143nd / 144nd and 206pb / 204pb and the positive relationship between 87sr / 86sr - 206pb / 204pb suggest a mixing of a depleted mantle source and an em2 component in the study area. calculation reveals that the maopin - shaianjiao mafic rocks are formed by 5 - 15 % degree of partial melting of an lree - riched spinel iherzolite

    模擬計算表明，該基性巖墻群是尖晶石二輝橄欖巖地幔5 - 15部分熔融的產物；微量元素配分模式及理論模擬表明茅坪?曬鞍角基性巖體的地幔源區在熔融前曾受到1俯沖沉積物熔體的源區混染和5流體交代作用。
  11. The isotopic evidence indicates that they might be derived from a depleted mantle source, and probably contaminated slightly by continental materials

    同位素組成特徵表明其來源於虧損地慢源區，可能受到輕微的地殼物質的混染。
  12. 2. early jurassic mafic volcanic rocks in yanshan area were derived from decompression melting of an ancient continental lithospheric mantle, which had been previously metasomatized by subducted slabs during the closure of paleo - asian ocean ; the mantle source of late jurassic mafic volcanic rocks were contributed by dominant emi and insignificant subducted metasomatic components ; early cretaceous mafic volcanic rocks were derived from decompression melting of an ancient continental lithospheric mantle ( emi ). with regard to the basaltic lavas, the felsic rocks resulted from partial melting of continental crust, which closely related to basaltic underplating

    2燕山地區早侏羅世中基性火山巖來自於早期俯沖交代的古老巖石圈地幔部分熔融作用，俯沖交代作用可能與早期古亞洲洋閉合事件有關；晚侏羅世中基性火山巖更多來自於類似於emi型地幔源區的部分熔融作用，俯沖交代成分貢獻很弱；早白堊世基性火山巖則來自於emi型地幔源區的部分熔融作用。
  13. Thus, they might be derived from a back - arc basin with an archipelagic system in paleo - tethys, instead of a large ocean basin. the isotopic geochemistry shows that the jinshajiang ophiolitic melange has higher e nd ( t ) values ( + 7. 42 - + 5. 44 ), suggesting that it may be derived from a lree depleted mantle source without significant contamination by the continental crust, but affected slightly by a fluid from a subducted ocean crust

    同位素地球化學研究表明，金沙江蛇綠混雜巖具有較高的_ （ nd ） （ t ）值（ + 7 . 42 + 5 . 44 ）暗示蛇綠巖來源於lree長期較虧損的地幔源，演化過程中沒有受到陸源物質的明顯混染，而主要受到少量俯沖洋殼析出流體的影響。
  14. The geochemical data of the benzilan and pantiange volcanic rocks from the jinshajiang zone yielded characteristics similar to those of island - arc volcanic rocks : intensive enrichment in lile and different depletion in hfse, nb, ta, ti, p and zr, hf. their lower e nd ( t ) values ( - 4. 03 - - 11. 29 ) indicate that they are derived from an emu mantle source or a mixing source between dm and emu respectively, but which are affected violently by subduction materials

    同位素研究顯示，它們具有較低的_ （ nd ） （ t ）值（ - 4 . 03 - 11 . 29 ） ，表明它們分別來源於富集地幔emii以及虧損地幔dm和emii兩元混合的源區，兩地的火山巖源區都受到了俯沖帶物質的強烈影響。
  15. The mafic dykes are characterized by arc - like trace elements, high initial 87sr / 86sr ratios and low end ( t ) values, and show some familiarities with the emii - mantle source

    海南島基性巖脈具有與「島弧」特徵相似的微量元素組成特徵以及高sr 、低nd的同位素特徵，表明其源自具有em特徵的富集地幔。
  16. As results of mix of deep mantle - source materials and shallow metallogenic materials, and tectonic movement of south unit and north unit, dongxiang copper deposit become a multi - metal deposit especially enriching cu, together with fe, w, s, ag, au, bi, cs and te etc. 2. ore - forming of copper deposit has much to do with the geotectonic of deposit area

    深部的幔源物質與淺部的成礦物質混合，南北兩大構造單元各自的成礦特徵又在此集中體現，使東鄉銅礦成為一個以銅為主，伴生鐵、鎢、硫、銀、金、鉍、銫、碲等元素的多金屬礦床； 2
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