mantle field 中文意思是什麼
mantle field
解釋
斗篷野,斗篷射野-
There is a north - north - east negative anomaly belt of aerial magnetism in the middle - east part of the basin, which could be displayed by the aerial magnetism of commutative field, upwardly continuation, lvt in earthquakes, the experimentation of granite liquation ( demagnetization ), the distribution of neozoic era volcanic rock, earthquake, hot spring and ground feature. the anomaly shows the blocking in east - west direction, and it is also associated with intense activity of deep heat interaction and the development of the crust - mantle mixed layer in the north qiangtang
從區域航磁、向上延拓、地震低速層、花崗巖熔融（退磁）實驗、新生代火山巖的分佈、地震、溫泉、地貌等發現，盆地中東部存在一北北東向航磁負異常帶，既顯示出東西分塊，也與北羌塘深部熱力作用強烈活動、發育「殼幔混合層」有聯系。 -
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。 -
Magma rose from the mantle forms new crust and slowly squeezes old one aside. since the earth s magnetic field alternates from north to south about every 10, 000 years, the iron - bearing minerals in the crust magnetize and " memorize " the direction of the prevailing magnetic field, just like a magnetic tape recording the geological evidence of aeon
國際天文學聯會international astronomical union由2001年起曾多次就行星的定義作出討論，最終聯會各與會者於2006年8月24日作出共識，定義行星planet為是一顆星體，需附合下面的三個條件： -
It is difficult to conform the derivations of the native heavy minerals, so the author assumes corresponding procedures as follows to accomplish the research task : firstly, according to the composition typomorphic peculiarities of minerals deriving from mantle, the author selected a part of minerals as preliminary reseach objects from the native heavy minerals and then further investigate the mantle ones and their host rocks in two ways : one is the method of comparation with the corresponding minerals of rocks deriving mantle in the research field and other places ; anorther is the method of multivariate statistical analysis
本次工作為了盡可能地排除非幔源礦物的干擾，根據陳光遠（ 1990 ） 、潘兆櫓（ 1994 ）等學者有關礦物成分標型的論斷，篩選出地幔特徵元素含量較高的重砂礦物做為初步研究對象，為達到研究目的採取了如下方法：與區內已發現的幔源巖石（如鉀鎂煌斑巖等） 、國內外有代表性的堿性玄武巖、金伯利巖、鉀鎂煌斑巖的深源包體中的相應礦物進行對比研究的方法；多元統計分類的方法。 -
Because of the absence of mantle xenoliths and xenocrysts, it is the first time that this paper looks on the native heavy minerals deriving from mantle, which were collected at the terraces of the two rivers, kalakshi river and yulongkashi river, as objects and takes into account the geochemical characteristics of the rocks deriving from mantle such as keliyang lamproite and so on to study the composition of lithospheric mantle, the characterics of palaeozoic era lithospheric mantle, mantle thermal state, and diamond metallogentic mantle geological conditions in research field
為達到研究目的，本文首次以喀拉喀什河和玉龍喀什河沿岸階地的幔源重砂礦物（單斜輝石、鉻尖晶石類礦物、鈦鐵礦以及石榴石）為研究對象，結合鉀鎂煌斑巖等區內已發現的幔源巖石及其中地幔物質對該區地幔物質的組成、古生代巖石圈地幔特徵、巖石圈熱狀態以及該區金剛石成礦地幔地質條件做了嘗試性的研究工作。 -
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
作者認為，上地幔隆起帶（巖石圈地幔減薄帶） 、上地幔異常區（相對低速區） 、殼內高導層隆起帶、深斷裂（巖石圈剪切帶） 、地殼上地幔不均勻性塊體的邊緣、重力高反映的基底隆起區、跳躍磁場反映的巖漿巖帶和構造交匯處等諸多因素的共同作用控制著含金夕卡巖礦床和銅伴生金夕卡巖礦床的分佈。 -
The core - mantle boundary is the closest researchers can get to the much more intense and complicated magnetic field that exists within the core, where magnetic fluctuations actually originate ; strong electric currents in the core prevent direct measurements of the magnetic field there
地核內具有更為劇烈、復雜的磁場，而且也是磁場變動的真正發源處，但是研究人員可推算的極限是在地核?地函交界處；因為地核內的電流極強，因此無法直接測量內部的磁場。 -
To make the yanshanian volcanic tempral and spatial distribution and evolution law clear, study the relationship of the deep crust - mantle processes and the volcanic rocks, the author selects the typical areas, xishan of beijing, duolun of inner mongolia, west liaoning, as the study areas where the volcanic rocks strata are developed. through the emphasised geological profiles of yanshanian volcanic strata being surveyed, much field work being done detailly, the small volcanic eruptive units have been defined originally, the levels of volcanic activity rhythm being constructed gradually, as a result, a integrated and systemic rhythm of yanshanian volcanic acivity has been constructed
為了揭示該區燕山期火山巖火山活動的時空分佈與演化特徵，探討與深部殼幔過程的關系，選擇了燕山期火山巖地層發育比典型的北京西山、內蒙多倫、冀北和部分遼西等地區，系統的測制了燕山期火山巖重點地層剖面，通過野外大量的詳細觀察，從建立最小的火山噴發單元開始，逐步地建立火山活動節律的級別，結合區域地層對比，建立了一個比較完整的燕山期火山活動節律及其級序。 -
Studies of the gravity field of the earth indicate that its crust and mantle yield when unusual weight is placed on them
對地球引力的研究表明，在不尋常的負荷之下地殼和地幔會發生位移。 -
Studies of the gravity field of the earth indicate that its crust 外殼 and mantle 覆蓋 物 yield when unusual weight is placed on them
球引力的研究表明，在不尋常的負荷之下地殼和地幔會發生位移。
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