結殼巖 的英文怎麼說
中文拼音 [jiēkéyán]
結殼巖
英文
crustose
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結 :
結動詞(長出果實或種子) bear (fruit); form (seed)
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巖 :
名詞1. (巖石) rock 2. (巖峰) cliff; crag
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( 4 ) based on the analysis and summary of typical orogenic belt in china, advancing the marker to distinguish the exist of delamination occurred in orogenic belt, especially giving up some new marker such as ring ultrabasic - basic - medium acid rock body, local bimodal continental rifting volcanic activity ; rapakivi granite, etc. ( 5 ) collating the main stages of south part of sanjiang orogenic belts evolution after the close of old nanchangjiang ocean, i
較全面地提出了判別造山帶成熟拆沉作用發生的標志,特別是根據對我國典型造山帶的總
結分析,提出了一些新的標志,如環狀超基性一基性一中酸性雜
巖體;局部雙峰式大陸裂谷型火山活動;二長花崗
巖、堿性花崗
巖和奧長環斑花崗
巖;地
殼局部短暫下沉;等等。
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The mafic dikes, volcanic rocks and alkalic - ultramafic dikes are terrestrial, and were all formed in the extensional settings. 3
三類
巖石在侵位
結晶過程都不存在明顯的地
殼混染。
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Based on the studies of petrotexture, structural deformation and the relevant metamorphism, this paper indicates that this peridotite massif is the product of ultramafic magma cumulated at the crust - mantle transtion zone and has undergone the early stage of plastic deformation under the condition of granulite facies ( 800 ) and late ductile shearing at amphibolite and greenschist facies in relevance to uplifting
本文通過
巖體的
結構、構造變形及相應的變質作用研究,提出了該橄欖
巖體是由超基性
巖漿在
殼幔過渡帶
結晶而成,並經歷了與圍
巖一致的麻粒
巖相( 800 )條件下的早期塑性變形以及角閃
巖相和綠片
巖相退化變質條件下與逆沖上升有關的韌性剪切變形。
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Researches of more than four decades in the field, especially from the early 1980s on, during which the analysis of the isotopes in fossil brachiopods and early diagenetic cements has contributed much to the knowledge, achieved appreciable progress
40多年的研究
結果,尤其是進入80年代方解石質的腕足化石
殼體和早期成
巖膠
結物等特殊樣品的應用,取得了若干重大研究進展,但同時也發現了一些新的問題。
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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。
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However geological information is fully recorded in the remote sensing image, which made it possible for the choosing of this area as a dissection point to extract complex structural information of orogenic belt in west china. taking fully advantage of multi - band image richly bearing concealed geological information in combination with remote sensing analysis and structure analysis, to anatomy the supracrustal composition and structure of orogenic belt with the regional linear structures and their partitioned block and schistous geological masses as the macro - frame ( in corresponding to structure units and structure segments ) and with the rock masses, structure - rock assemblages, line - featured and belt - featured structures as well as penetrative and non - penetrative foliation ( primary stratum and trans position layering ) and folds as the texture and structure elements. the methods of how to distinguish granulite > ductile - shear zone, imposed fold, different deformed belts -
因而,本文選擇這一地區作為我國西部地區從遙感圖像上提取造山帶復雜
結構構造信息的解剖區,充分利用遙感圖像多波段反映物質屬性的特點和圖像處理提取隱含信息的優勢,採用遙感解析?構造解析相
結合的研究方法,以區域線狀構造及由它劃分的塊狀、片狀地質體為宏觀骨架(對應于構造解析劃分的構造單元、構造均勻區段) ,以地質體中的
巖石
巖體、構造
巖石組合,線狀、帶狀構造,透入性、非透入性面狀(原始層理、新生面理)和褶皺等構造作為用於解析的
結構構造要素,進行造山帶表
殼組成和
結構構造解析研究。
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To strip it from sea - bed rock and transport it to seabank, it is necessary for us to understend the friability of cobalt crust
欲將
結殼從海底基
巖上剝離並采出海面,必要弄清鈷
結殼的破碎特性。
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And apatite. by these analyses and comparison with general granite both in china and the world and with the granite in other au or cu belt in china, the characteristics of the granite in this area are concluded as follows. it belongs to magnetite - i or syntectic granite and has crust - mantle mixed characteristics ; it was formed mainly by crystallization differentiation of melting magma and multiphase varied intrusion ; the degree of differentiation evolvement is not high ; the granite and its enclaves p. re congenetic ; the range of temperature is about 500 - 700, the range of pressure is about 2. 50 gpa - 4. 35 gpa, and the range of oxygen fugacity ( lg fo2 ) is - 15. 53 - - 14. 00 ; most granite bodies formed before the collision of plates, and few formed after the collision of plates
通過對測試數據的分析與綜合研究,並同中國和世界一般花崗
巖類以及中國主要金、銅成礦
巖體的花崗
巖類進行對比,得出本區花崗
巖類
巖石具有以下特徵:屬磁鐵礦-型或同熔型花崗
巖,其
巖漿物質具
殼幔混源特徵:主要由熔融態
巖漿經
結晶分異作用,通過多期變速上侵而形成;其分異演化程度較低;寄主
巖基和包體具有同源性;
巖石的形成溫度范圍約為500 - 700 ,壓力大約為2 . 50gpa - 4 . 35gpa ,氧逸度值1gfo _ 2為- 15 . 53 ? 14 . 00 ;該
巖帶主要形成於板塊碰撞前消減的活動板塊邊緣期,為燕山至喜馬拉雅早期的大陸邊緣火山弧環境的產物。
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Our results indicated that ree concentrations of groundwater within the granitoid weathering crust in baisha area are high relative to many groundwater samples within granite weathering crust worldwide
研究
結果表明,白沙地區花崗
巖風化
殼地下水的稀土含量偏高,最高達到114 g / l ,比世界其他地區高1 - 2個數量級。
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There are distributed a great number of cenozoic basalts and mantle derived xenoliths in north china and south china. for understanding the materials constitutes, evolution, mantle metasomatism, and inhomogeneity of the lower crust and upper mantle, there is a must of doing some research on these host basalts and the xenoliths
華北、華南地區發育大量新生代玄武
巖及幔源包體,對其進行研究,有利於進一步深入了解下地
殼和上地幔的物質組成、演化、地幔交代和不均一性以及地球物理反演
結果的可靠性等。
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From studies of these characteristics of structures, palaeontology, drilling, well logging, seismic profile, salt chemistry and lacustrine sedimentary system, it is recognized that the new characteristics occur in of section pukou and in huaiyiri sag, and the huge thickness of salt rocks is formed by the crust salt materials upwelling along deep fracture in the form of hot bittern and entering lacustrine basin in this area
通過該區構造、古生物、鉆井、測井、地震、鹽
巖化學及湖盆內沉積體系等特徵的研究,認為淮陰凹陷浦口組二段和三段的沉積構造有其特殊性,巨厚的鹽
巖層是
殼深部鹽類物質沿深大斷裂上涌以熱鹵水形式進入湖盆的
結果。
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This paper emphasizes the effect of the dissolution of aluminosilicate during diagenesis may provide more radiogenic strontium which would result in a high content of strontium in carbonate rocks. so we should avoid the vein of carbonate and select the samples with less terrigenous clastic, less grain content and lacking calcite cementation collected as analysis samples. the microcrystalline limestone and micro - to fine - crystalline dolomite are rather fairly whole rock samples
作者還強調了成
巖過程中由長石等鋁硅酸鹽溶解提供
殼源sr所造成的碳酸鹽礦物成
巖蝕變可能表現為較高的sr含量;因此,在用全
巖樣品進行旨在反映海水組成的各種分析時,應迴避碳酸鹽脈,選擇含陸源碎屑低、顆粒數量少、缺乏方解石膠
結物的樣品,微晶灰
巖或微?粉晶白雲
巖是較為理想的全
巖樣品。
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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。
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Alkali basite, which came from upper mantle or lower crust, invaded through those structure, which not only bring cu et al mineralizing elements, but also the most important is that thermal energy. it cycled the formation water ( yinmin fonnation and luoxue formation ), and form alkali - rich, middle - high temperature and salinity fluid mixed with alkali - rich magmatic water. there were high rate of percolation and well voidage in the contact zone between yinmin purple stratum and yinmin rubblerocks, which is in favor of the transposition and mineralization of minerogenetic fluids
因此,總
結東川稀礦山式銅礦成礦模式為沉積( fe 、 cu ) ?熱液疊加( cu )改造:晉寧-澄江期,小江深大斷裂發生走滑運動,在東川礦區造成右行旋扭及其派生構造,形成「 z 」字形落因破碎帶,同時來自深源(下地
殼或上地幔)堿基性
巖漿侵入,不僅帶來了大量cu等成礦物質,更重要的是提供了熱源,促使地層水(落雪組白雲
巖和因民組紫色層)循環,與富堿( na和k )
巖漿水混合,形成富堿中高溫高鹽度流體。
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During the yanshanian phrase, the area is in the condition of contractional background, with multi - staged tectonic reversion. 5. through studying the origin of volcanic rocks and the characteristics of magma evolution, it concludes that there exist 3 originated areas of magma - from mantle, crust, and mantle - crust exchange. the basic magma of nandaling volcanic rocks of early jurassic is derived from upper mantle ; the magma of tiaojishan volcanic rocks of mid jurassic is formed in the contractional tectonic setting, and derived from the transition zone of crust and mantle interaction ; the acid magma of l
5 、通過
巖石化學、微量元素、稀土元素的研究,探討了不同級別節律的火山
巖成因、
巖漿演化等特徵,認為本區燕山期火山
巖有三個
巖漿源區,即地幔源、地
殼源和
殼幔混源,早侏羅世的南大嶺旋迴的基性
巖漿,起源於上地幔;中侏羅世髫髻山旋迴火山
巖是在相對擠壓環境中,
巖漿起源於
殼幔過渡帶;晚侏羅世無負eu異常的酸性
巖漿來源於下地
殼的古老
結晶基底的局部熔融,有負eu異常的酸性
巖漿來源於上地
殼的局部熔融;早白堊世火山
巖基性
巖漿起源於上地幔,中性
巖漿起源於下地
殼底部的
殼幔過渡帶。
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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。
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The control of the deep - seated structural - magmatic process over the metallogenic system around the middle - lower yangtze river reaches is shown as : ( 1 ) the mantle uplift belt is closely related to the general geological background of the metallogenic system ; ( 2 ) the primitive magma originated from different parts of the mantle uplift belt ( mantle ridge or mantle slope ) shows differences in style of formation and composition and results in different magmatic series and metallogenic subzones, respectively ; ( 3 ) the varying depths of structural - magmatic chambers may form a " three - layered structure " ( central type, network - like and ring - like ) and this is the primary factor that controls the different magmatic series and the concerned cluster of ore deposits ; ( 4 ) the alkaline basaltic magma derived from the mantle ridge forms high - potassium and calcium alkaline magma and shoshonitic magma due to its altering intensity of afc process with the lower crustal material, which has something to do with the copper - gold and iron - sulphur metallogenic subsystems, respectively
深部構造
巖漿作用對長江中下游成礦帶安徽沿江地區成礦系統的控製表現為: ( 1 )地幔隆起帶與成礦系統的總體地質背景的演變密切相關; ( 2 )源於地幔隆起帶不同部位(幔脊與幔坡)的原始
巖漿,其生成方式和物質組成不盡相同,它們分別產生相應的不同
巖漿
巖系列和成礦亞帶; ( 3 )不同深度的構造
巖漿房組成中心式網格式環帶式「三層
結構」 ,是控制區內不同
巖漿
巖系列及有關礦床集中分佈的主要因素; ( 4 )源於地幔隆起帶脊部的堿性玄武
巖漿,由於與下地
殼物質發生的afc作用強度不同,形成了高鉀鈣堿性
巖漿和橄欖安粗
巖漿,分別與銅、金成礦亞系統和鐵、硫成礦亞系統有關。
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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。
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This research demonstrates that this area is suitable for the development of large scale weathering crust and karstic reservoirs
結果表明,研究區域適宜大規模風化
殼巖溶作用的發生以及
巖溶型儲層的發育。
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Because of those, the paper systems analysis the complicated geological environment, the character of rock mass ' s stress field and the stability of landslide on the right bank, in addition, the paper also deeply studied the geological engineering problem after the dam was builded in order to provide science datum for engineering decision, and elicited several conclusion : ( 1 ) the character of rock mass ' s stress - strain and new structure stress fieldrfrom the middle of q3 to today, the direction of the maximal principal stress has already changed to the sn, the stress - strain action and three direction of stress have been changed from " potential positive break " to " potential slide "
同時通過以上的分析研究本文得出了以下主要的結論與認識: ( 1 )最新構造應力場與地殼巖體應力?形變作用的現今特徵:自晚更新世( q _ 3 )中期以來,區域應力場的最大主應力( _ 1 )作用方向轉為近南北向( n10 w )作用並一直持續至今,地殼巖體的三向應力狀態及應力?形變作用經歷了由早期的「潛在正斷型」轉變到近期的「潛在走滑型」兩個不同的發展階段。