地幔巖 的英文怎麼說

中文拼音 [demànyán]
地幔巖 英文
pyrolite
  • 幔 : 名詞（遮擋用的簾子） curtain; screen
  • 巖 : 名詞1. （巖石） rock 2. （巖峰） cliff; crag
  1. During diagenetic process, there may exist the fractional crystallization of clino - pyroxene, plagioclase, olivine and ti - fe oxide, and the accumulation of olivine. the alkalic - ultramafic dikes formed by low degree partial melting ( 3. 4 % ) of enriched mantle, consist of single olivine pyroxenolite, the dominating olivine fractionation is evident

    成因上為富集地幔部分熔融作用的結果，但在成巖過程中也可能存在單斜輝石、斜長石、橄欖石和ti - fe氧化物等礦物的分離結晶作用。
  2. Through the ree charactheristics being studied, it suggests that the xenoliths from hannuoba, ximeng, and puning area have no the trend of lree enrichment, which ratios of lree / hree approximate 1. therefore, it is not different from archean lithospheric mantle

    稀土元素地球化學研究表明，漢諾壩、錫盟、普寧等地區包體則無lree富集的趨勢， lree hree接近於1 ，因此它們與太古代巖石圈地幔不同，稀土元素特徵表明它們遭受了強烈虧損。
  3. Amore 2001 has successfully investigated the gakkel ridge and arctic ocean in vicinity of its geological and geophysical nature, as well as the nature of sea ice and biology in this area. the preliminary onboard petrology and bathymetry results show that the mantle beneath the gakkel ridge with low temperature has only encountered very low degree partial melting during the spreading and there is no any direct relationship between the crust nature and the spreading rate along the gakkel ridge in any simple petrologic way. mantle temperature and fracture zone density also play a major role on the crust nature, besides spreading rate

    對所取得資料的初步研究表明gakkel洋中脊之下的地幔僅經受了較低程度的部分熔融，具有較低的溫度。 gakkel洋中脊處的地殼性質和巖漿活動與擴張速率之間不存在任何直接的巖石學相關性，擴張而導致的巖石圈頂部的冷卻並不是決定洋脊處地殼性質的最重要因素。地幔溫度和斷裂帶的存在與否及其密度對地殼性質具有重要的影響意義。
  4. Carboniferous tianshan igneous megaprovince and mantle plume

    天山石炭紀大火成巖省與地幔柱
  5. Thus, the paper focuses on mineralogy, petrology, petrogeochemistry, isotopic chorology, and sr - nd - pb isotopes of the mafic intrusions and dikes in fujian province, se china. in addition, we also discussed the process of the plate subduction, mantle evolution, crust - mantle interaction, lithospheric thinning and extension, and the reaction for crustal extensi on in fujian province, se china. ( 1 ) daiqianshan mafic intrusion is situated along the changle - nanao fault, which intruded in the metamorphic rocks

    基於此，本文以中國東南部福建省的基性脈巖、巖體為研究對象，運用系統的礦物學、巖石學、巖石地球化學、同位素地球化學及同位素年代學證據，詳細論述了晚中生代中國東南部板塊俯沖、地幔演化、殼幔相互作用及巖石圈伸展減薄的地球動力學過程，探討了地殼拉張期次在福建省區域構造上的響應。
  6. The mafic dikes also formed by the partial melting of enriched mantle, include gabbro, diabase ( distributing mainly in luxi ) and lamprophyres ( camptovogesite, odinite and hornblende lamprophyres ) ( mainly in ludong ). for all the rocks, crustal contamination was absent when magma emplaced. 2

    基性脈巖主要包括輝長巖、輝綠巖（主要分佈在魯西地區）和煌斑巖（以斜閃煌斑巖為主，同時含部分拉輝煌斑巖和角閃煌斑巖） （主要分佈在魯東地區） ，都為富集巖石圈地幔部分熔融的產物。
  7. The ophiolite massifs are composed of mantle peridotite that is mainly harzburgite and dunite, and lacked of crust magmatite within the typical ophiolite suite

    摘要該蛇綠巖帶的巖體由地幔橄欖巖組成，主要巖石類型是方輝橄欖巖和純橄欖巖，缺少典型蛇綠巖剖面中的洋殼單元。
  8. 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。
  9. 2 both the hanging wall and the footwail rock of ore bodies are garnet biotite schist, protoliths are alkaline volcanic rocks ( tracyh andesite ). according to characteristics of trace elements assemblages and the setting of tectonics, these alkaline volcanic rocks were derived from the lower degree melting of metasomatic and enriched mantle ( eml ) in the initial stage of middle proterozoic epoch. they strongly enriched in large ion lithophile elements ( lile ), such as ba

    2 、礦體頂、底板圍巖（石榴石黑雲母片巖、鈉長黑雲母片巖等）的原巖為堿性火山巖（粗面安山巖） ，相對富集大離子親石元素ba 、 cs 、 rb 、 k 、 lree及貧zr 、 sr 、 ti 、 hf 、 hree ，為早元古代末期-中元古代早期交代富集地幔低程度部分熔融所形成的堿性火山巖。
  10. By physiognomy feature, it could be divided into three types of thermal structure : positive dome model, negative collapse model and border dome core collapse model. based on the depth degree or magma - thermal influenced, it could be divided into five types of thermal structure : ( ancient ) geothermal anomaly focus region model, superficial volcano eruption hydro - thermalism and hypabyssal intrusive model, thermal anticline ( thermal dome ) model, mid - deep intrusive model, deep mantle ( crust ) thermal plume model ; and put forward a perfect model of the thermal structure. there are many interaction system could be induced into a systematic thermal interaction, include : ocean - continent system, basin - mountain interaction, superficial and mid - deep crust - mantle interaction, crust - mantle commingle interaction, vertical thermal interaction ( delamination ) etc.

    依據地貌形態分為三類：正向穹窿型、負向塌陷型、邊隆核陷型：依據巖漿-熱力作用影響的深淺程度或深度分為五類： （古）地熱異常群集區、表淺層火山噴發-熱液活動與淺成侵入型、熱力背斜（熱穹窿） 、中深層侵入型、深部地幔（地殼）熱柱型；提出了熱力構造作用空間分佈的理想模式，將洋陸系統、盆山作用、淺表與中深部殼幔作用、殼幔混合、垂向熱力作用（拆沉）等納入一個整體統一的熱力作用系統中，為盆地動力學研究打開了一個新窗口；研討了熱力構造研究方法。
  11. The copper, iron, nickel and silver deposits might be assigned to four metallogenic series : i. the metallogenic subseries of copper, molybdenum, gold, silver deposit related to late devonian - early carboniferous basic - intermediate - acid hypabyssal intrusive - eruptive rocks ; ii. the metallogenic subseriesof iron, copper, zinc deposits related to early carboniferous basic - intermediate - acid volcanic - intrusive rocks ; iii. the metallogenic subseries of copper, silver, iron deposits related to middle - late carboniferous basic - intermediate - acid volcanic - intrusive rocks ; iv. the metallogenic subseries of copper, nickel and platinum group deposits related to late carboniferous - early permian basic - ultrabasic rocks ; 3, division of regional major metallogenic belts on the basis of the previous work conducted and by following the principles, grounds and methods of the division of metallogenic belts, areas and fields, . in light of this, metallogenic belts of grade iv were divided

    1 、按照成礦系列理論的學術指導思想，將研究區華里西期銅礦床成礦系列劃分為四個成礦系列亞系列： 、晚泥盆?早石炭世延東?土屋?三岔口與中酸性巖漿侵入活動有關的cu 、 mo 、 au礦床成礦亞系列、早石炭世與巖漿作用有關的鐵、銅、金、銀礦床成礦亞系列、中石炭世與巖漿作用有關的cu 、 fe 、 ag 、 au礦床成礦亞系列、晚石炭世-早二疊世與幔源基性?超基性巖有關的銅、鎳、鉑族礦床成礦亞系列並從地層、巖漿巖、控礦構造、地球化學、成礦特徵等方面對各成礦亞系列進行了詳細論述。
  12. Based on the petrological, petrochemical and geochemical analyses about these rocks, it is concluded in this paper that the xenoliths were originated from the upper mantle, and comprised of both primitive pyrolite and the infusible solid residual of the upper pyrolite while the basaltic magma was melted out of it, which were brought up to the earth ' s surface via o1carnc eruption

    根據其巖石學、巖石化學及地球化學特徵分析，包體來源於上地幔，其成因既有原始地幔巖，亦有上地幔巖經部分熔融出玄武巖漿后的難熔固相殘留物，被火山噴發攜帶至地表。
  13. The transitional group of diabases have intervenient sig, feg, tig, indicative of in - between melting degrees and melting depths. the highest nag in thes e rocks tend to suggest that na behaved as a moderately incompatible element during magma generation, thus preclude the possibility for residual jadeite to host na

    所有的觀察事實反映徐州地區晚元古代輝綠巖來源於具有不同深度、不同富集程度的nd同位素虧損地幔，因此最好的解釋模式就是它們為地幔柱沖擊作用下巖石圈-軟流圈-地幔柱相互作用的產物。
  14. The mesosphere comprises the rest of the mantle below the asthenosphere.

    中間圈包括巖流圈以下地幔的其餘部分。
  15. The pges abundance patterns of residual mantle rock with a peleo - subduction background is characterized by pd, pt depletion and ir, ru relatively enrichment, while the basalt and basic dyke by the processing of partial melt in the same background take an opposite feature of pd, pt enrichment and ir, ru depletion. the existence of fluid in the subduction zone increases the degree of partial melt on the one hand, and on the other, activates the activity of pd, pt compare to ir, ru, and thus reduces the pd ir and pt ru in residual mantle rock. the pges patterns for basalt and basic dyke from two carboniferous volcano zones to south qoltag and north turpan - hami basin, xinjing uigur autonomous region, take a shape of gentle positive inclined curve with lower pt and pd differentiation and lower pges. all these features are obviously different from that of basic dyke and basalt from typical ophiolite and therefore the author believe that their fluid - rich paleo - subduction zone environment can be ruled out

    古俯沖帶背景下的殘餘地幔巖的pges配分以pd ， pt明顯虧損和ir ， ru相對富集為特徵，而部分熔融產物的玄武巖和基性巖脈則呈現相反的ir ， ru明顯虧損和pd ， pt相對富集特徵。俯沖帶中流體的參與一方面增加了部分熔融程度，有利於pd ， pt從原始地幔進入熔融相另一方面，流體的作用使得pd ， pt相對于ir ， ru遷移活動性效率提高，造成地幔巖中
  16. 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。
  17. These studies, therefore, suggest that the songsugou peridotite is not a tectonic massif of the upper mantle but a ultramafic magmatic rock body crystallized in deep crust and tectonically emplaced in the upper crust

    從而證明了松樹溝橄欖巖體並不是上地幔巖石的殘片，而是由巖漿在深部地殼環境下結晶而成並以固態構造侵位於地殼的上部。
  18. 4. three type of basalt is recognized in changle region : a, sapphire - embodied alkli - olivine - basalt of niushan group ( most distributed in fangshan ), enriched with a large number of mantle - orignated xenoliths with different extent of weathering ; b, alkli - olivine - basalt of niushan group with little sapphire embodied, but contan a few mantle - orignated xenoliths usually samller than that of fangshan, most of the mantle - orignated xenoliths weathered seriously only lefting with some vacant caves, this kind of rock mostly lies in cangshan, taohuashan. and qiaoguan volcanic vent, contain amount of ilmenite ; c, olivine - basalt of yaoshan group, contain neither xenoliths nor sapphire

    4 、在昌樂地區區分出三類主要的玄武巖： a ，牛山組含礦的堿性橄欖玄武巖，位於方山，含大量的大小不一的風化蝕變程度不同的地幔巖包體； b ，牛山組幾乎不含礦的堿性橄欖玄武巖，含少量地幔巖包體，且包體一般比方山小，多數已經遭嚴重風化而只留下空洞，含有相當數量的鈦鐵礦，主要位於北巖南部的蒼山，桃花山及喬官火山口。
  19. 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。
  20. 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。
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