lithospheric 中文意思是什麼

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。

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。

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。

Discussion on the lithospheric thinning of the north china craton : delamination ? or thermal erosion and chemical metasomatism

關于華北克拉通燕山期巖石圈減薄的機制與過程的討論:是拆沉，還是熱侵蝕和化學交代

The spatial heterogeneity of the lithospheric mantle beneath north china may have resulted from the diachronous thinning processes

華北巖石圈組成的空間不均一性可能與巖石圈減薄過程的時空差異有關。

Given the fact that mesozoic magmatism was closely related to the lithospheric thinning, it is proposed that the diachronous lithospheric thinning is the main mechanism by which the taihangshan gravity lineament was formed

由於巖漿作用與巖石圈減薄作用密切相關，因此認為華北巖石圈減薄的時空不均一性是形成太行山重力梯度帶的重要機制。

Partial melting of the enriched lithospheric mantle owing to a raised geotherm caused by lithosphere thinning and following the afc process resulted in the formation of the quannan and tabei syenites in southern jiangxi

隨著拉張作用加強，受軟流圈物質交代過的巖石圈地幔的小比例部分熔融形成的高鉀堿性巖漿經afc作用形成堿性雜巖（全南和塔背巖體） 。

In the case of sufficiently young chasmic basins high heat flows are due to lithospheric cooling.

這種相當年輕的裂陷盆地的高熱流是由巖石圈冷卻所引起的。

The tectonic plate motions, especially at the convergent edge of the lithospheric plate, such as building mountain, earthquake eruption, island - arc and trough development, and so on, which are close related on the human inhabiting environment

板塊構造運動，特別是巖石圈板塊匯聚地帶的構造運動? ?造山運動、地震爆發和島弧海溝的形成等，這些與人類生存環境息息相關。

In the light of new findings in geological studies and recent development in lithospheric delamination theory and numerical modeling experiments, we have come to the conclusion that the above - mentioned differences are caused by the crustal thickening and oblique collision prior to the hitting of the indian continent toward the eurasian continent

在充分利用高原地質研究最新成果的基礎上，提出印度次大陸向歐亞大陸碰撞前地殼增厚及斜向碰撞是造成上述地質現象的根本原因，並由此對青藏高原構造演化的一些特點作了新的解釋和探討。

4. the relative fertile lithospheric characters of yanshan area, unique plate tectonic situation and developed deep faults can explain reasons of the volcanism and tectonic events in yanshan area throughout the mesozoic

4燕山地區特有的相對「易熔」的巖石圈性質，所處的特殊的構造位置及發育的深大斷裂，可以較好的解釋該地區發生貫穿整個中生代的火山活動和構造變形的可能性。

The effects of ssc ( small - scale sub - lithospheric convection ) on seafloor topography are investigated by formulating a 2d thermal convection model that is parallel to plate motion

摘要根據建立的垂直於大洋中脊的二維熱對流有限元數值模型，採用常粘性以及與溫度相關的粘性兩種粘性結構對小尺度地幔對流對海底地形的影響進行了重新研究。

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。

According to the topography and geomorphology, the abnormality of gravitation and magnetic field, characteristics of crust structure and the environment of lithospheric dynamics in the northwestern of the south china sea, the seismic profiles were explained across the yinggehai basin and xisha trough

摘要本文根據南海西北部殼體的地形地貌、重磁場異常和地殼結構特徵和巖石圈動力學環境，對穿過鶯歌海盆地和西沙海槽的地震剖面進行解釋。

The surface loading of the mountains and the associated root of thickened crust produce horizontal deviatoric tension in the strong upper crust. in contrast, the deep, dense lithospheric root and its associated downflexing of the surface produce horizontal compressive deviatoric stress in the strong near - surface layer. the actual state of stress in the strong layer of the upper crust is the combined effect of these two opposite stress systems together with bending and other local and regional stresses such as due to ridge push

模擬結果表明：由於均衡機制，造山帶下部的低密度山根促使地殼隆升、造山，山根是地殼剛性層中張性構造應力的主要力源；與此相反，冷的高密度巖石圈向軟流圈插入、拆離、下沉，從而形成巖石圈根，它引起擠壓造山和巖石圈地幔物質的重新調整，也是地殼剛性層中擠壓性構造應力的主要力源。

Lithospheric tectonic units of china

中國巖石圈構造單元

Introduction to the state key laboratory of lithospheric evolution

巖石圈演化國家重點實驗室

The kunyang group is distributed in the marrow and long belt constrained by the luzhijiang lithospheric fault and the xiaojiang - yimeng fault

早中元古界昆陽群分佈於綠汁江巖石圈斷裂和小江-易門斷裂的夾持地帶，呈狹長狀展布。

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。

Recently, two important things need to be further addressed : ( 1 ) the time of the transition from compressional to extensional setting, and the geodynamics processes in se china ; ( 2 ) the relationship between polymetallic mineralization and lithospheric thinning and crustal extension

近年來隨著研究的深入，逐漸凸顯出兩個重要的地質問題需要解決： （ 1 ）中國東南部晚中生代構造屬性的轉變時間及地球動力學演化過程； （ 2 ）多金屬成礦作用與巖石圈伸展減薄及地殼拉張的關系。