玄武巖圈 的英文怎麼說

中文拼音 [xuánwǔyánjuān]
玄武巖圈 英文
basaltic shell
  • 玄 : Ⅰ形容詞1 （黑色） black; dark 2 （深奧） profound; abstruse; recondite 3 （不實在; 靠不住） unrel...
  • 武 : Ⅰ形容詞1 （關于軍事的） military 2 （關于技擊的） connected with the art of attack and defence in...
  • 巖 : 名詞1. （巖石） rock 2. （巖峰） cliff; crag
  • 圈 : 圈名詞1. （養豬羊等牲畜的建築） pen; fold; sty 2. （姓氏） a surname
  • 玄武 : 1 （烏龜） tortoise2 （二十八宿中北方七宿的合稱） seven constellations of northern sky3 （道教所...
  1. Secondly, based on the microbeam analytical technique, on the one hand, through investigating the characteristic of major elements in the mantle minerals the author acquired the static information from mantle ; on the other hand, through multi - point analysis of a part of the minerals from mantle, the auther got dynamic information from mantle. finally, generalizating the fruits of this study and predecessors, the autor holds that the constituents of lithospheric mantle possibly includes spinel lherzolites, clinopyroxenites, websterite, dunite, harzburgites, garnet lherzite, phlogopite lherzite, eclogites, clinopyroxene megacrysts ; compared with east china and north china platform, the research field mantle shows the characteristics of higher degree of partial melting processes and more depleted mantle ; the. upper mantle beneath north hetian area is heterogeneous, with a tendency of deficit in a12o3 and lree from kaliyang in west hetian to the river basin of kalakshi river and yulongkashi river ; the subduction of the crust beneath north hetian has ever occurred in geological history and caused the mixing of mantle - crust ; the depth of the origination of basaltic magmas beneath north hetian exceeds 73km ; the thickness of the lithosphere beneath the research area amounts to 204. 9km ; the mantle beneath north hetian has geological condtions for forming diamond deposits

    最後，綜合本區幔源礦物和地幔巖石的特徵以及地球物理資料，得出如下結論：本區上地幔的物質組成有尖晶石二輝橄欖巖、二輝巖、單斜輝石巖、純橄欖巖、方輝橄欖巖、石榴石二輝橄欖巖、金雲母二輝橄欖巖、榴輝巖；與中國東部以及華北地臺上地幔相比，研究區上地幔具有富集主元素中相容元素和虧損其中的不相容元素的特徵，局部熔融程度較高；上地幔存在橫向和縱向的不均一性，從西部的克里陽到喀拉喀什河和玉龍喀什河流域， al和lree富集程度呈下降趨勢，不同來源的相同礦物中主元素的含量差異較大；地質歷史時期這里可能發生過地殼俯沖並產生殼幔混合作用；玄武巖漿的起源深度73km ；從幔源重砂礦物的溫壓估算結果，可以推斷出巖石圈厚度可達204 . 9km ；綜合巖石圈物質組成特徵、巖石圈熱狀態、地幔溫壓狀態、氧逸度以及幔源巖石和幔源礦物的化學成分，認為研究區具備了金剛石成礦地幔地質條件。
  2. The research of large igneous rock province - ermei basalt extrusion - mantle plume shows that songpan - ganzi folded belt is a hopeful target for breakthrough of petroleum exploration, and the key issue is how to make well a coupling and optimization among its faults, structures, traps and reservoirs

    根據地震測深、重、磁、電等的探查，發現該褶皺帶深部有一低速高導層，而對大火成巖省峨眉玄武巖噴溢地幔柱的認識深化均表明，四川松潘甘孜褶皺帶是可望獲得油氣勘探突破的靶區，重要的是斷裂構造、圈閉、儲集層的耦合與優化。
  3. Basalt have importance meanings on deduce the earth ' s mantle material composition, analysis tectonic environment and the geosphere deep dynamics research

    摘要玄武巖在反演地幔物質成分、分析構造環境和巖石圈的深部動力學研究中具有重要意義。
  4. The alkaline basalts in southern hunan are suggested to have formed by small degrees of decompression melting of the asthenosphere mantle during the initial extension. the transitional ( the chebu gabbro ) and tholeiitic basaltic magmas were generated by relatively larger degrees of partial melting of the mantle

    在裂谷初期，軟流圈地幔的小比例部分熔融形成堿性玄武巖（湘南） ，在裂谷拉張作用比較強、地幔部分熔融比例比較大時形成贛南和湘南的過渡型（車步輝長巖）及拉斑質玄武巖。
  5. Given their oib - type trace element pattern and depleted sr - nd isotop ic composition, the datong alkali basalts are interpreted to be generated within the asthenospheric mantle but at a shallow depth compared to the yangyuan alkali basalts. the datong tholeiitic basalts exhibit low snd values ( 1 - 4 ). their sr - pb and nd - pb isotopic correlations are consistent with a mixing between the depleted mantle and emi - like component

    大同地區第四紀時期同時產出堿性和拉斑玄武巖，堿性玄武巖也主要來自於軟流圈地幔，巖漿起源深度小於陽原樣品；拉斑玄武巖具有較低的nd （ nd = 1 - 4 ） ， pb - nd以及pb - sr同位素相關關系暗示其可能是dm和型富集地幔（ emi ）組分之間混合的結果，反映了軟流圈和巖石圈地幔之間的相互作用，巖漿起源較淺。
  6. 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。
  7. Therefore, they most likely originated from the asthenospheric mantle at a relatively great depth. the quaternary basalts at datong include both alkaline and tholeiitic types

    相似於洋島玄武巖（ oib ）的微量元素特徵指示玄武巖主要來自於軟流圈地幔，巖漿起源較深。
  8. The distinct spatial distribution of the tholeiitic and alkali basalts at datong may be related to the effect of local lithospheric extension on the passive upwelling of asthenosphere and variable extents of interaction between lithosphere and asthenosphere

    大同兩類玄武巖在空間上分野明顯，可能與桑乾河斷裂對軟流圈地幔上涌的控制以及區域上巖石圈-軟流圈作用程度的變化有關。
  9. The comparison of cenozoic basalts and their mantle xenoliths from both sides of the taihangshan gravity lineament reveals that : ( 1 ) cenozoic basalts from western and eastern north china display opposite temporal trends, suggesting lithospheric thinning in western north china during the cenozoic and lithospheric thickening in eastern north china ; ( 2 ) the lithospheric mantle in the west is mostly late - archean to proterozoic in age, whereas that in the east has a modern age with minor proterozoic age ; ( 3 ) the crust mantle transition in the west is considerably thicker than in the east, probably due to different extents of magmatic underplating

    摘要通過對比華北太行山重力梯度帶兩側新生代玄武巖及其中幔源包體的成分，發現： （ l ）華北東、西部新生代玄武巖具有相反的演化趨勢，說明新生代以來西部巖石圈逐漸減薄，而東部巖石圈逐漸加厚； （ 2 ）西部巖石圈地幔組成相對復雜，年齡多為晚太古代元古代；而東部巖石圈地幔組成相對單一，年齡多為現代值，少數為元古代； （ 3 ）西部殼幔過渡帶較厚而東部較薄，反映兩地不同的巖漿底侵作用程度。
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