脈石巖 的英文怎麼說
中文拼音 [màidànyán]
脈石巖
英文
gangue rock-
Therefore, based on the isotopic chorology, petrochemistry, geochemisty and sr, nd, pb isotope, the ph. d dissertation mainly studied some yanshanian mafic dikes, volcanic rocks and alkalic - ultramafic dikes in shandong province
本論文主要從同位素年代學、巖石化學、地球化學和sr ? nd ? pb同位素方面對山東地區燕山期基性脈巖、火山巖和堿性超基性脈巖進行了系統研究。Hornblende bearing varieties bridge the gap over to amphibolites which are in bands and dikes.
含角閃石的變種填補了帶狀和脈狀角閃巖的中間相。It is further indicated by the fusion of various geo - factors that the major targets include gold - bearing limonitic cataclastic rock in ningwei domain, auriferous quartz in nanhua mountain and xihua mountain domain, where the 50 - 85 strike mylonite and sulfur - bearing quartz - calcite veins of cataclastic rock is the prior ore - search targets
同時,通過多源地學因素的融合還顯示,寧衛地區找金的主攻對象以含金褐鐵礦化碎裂巖為主,南華山、西華山地區以脈型金礦為主,且重點應在50 - 85度方向糜棱巖、碎裂巖帶中尋找含硫化物的石英-方解石脈。There are typical laminated structure, soft sedimentary - slipping deformed structure, syngenetic brecciated structure in the ore which are the mirror of syngenetic sedimentation. the other type of ore has the charactristic of epigenetic mineralization, which is called as telescoped ore. the ore occurs in vein, pocket, lensoid and bedd
礦石中發育典型的紋層狀構造、軟沉積滑動變形構造、同生角礫構造等反映同生沉積特徵的礦石構造;另一類礦石具有明顯的後生成礦特點,稱之為疊生改造型礦石,礦石產于脈狀、囊狀、透鏡狀及似層狀礦體中,與燕山期巖漿巖及斷裂裂隙構造關系密切。Rock faces commonly show a stockwork of intersecting quartz and carbonate veins.
巖石的外表呈現交織的石英及碳酸鹽細脈組成的網格構造。Three stages of deformation can be distinguished from the cataclastic superposition of matrices that infilled the microcracks in cataclastic rocks, and two phas es of paleotectonic stress field from the typical conjugated shear joints by stereograms illustrating
構造巖中膠結物和微裂隙充填脈反映了巖石碎裂變形的三次疊加。斷裂變形帶內發育兩期典型的共軛剪節理,但區域分佈各有特點,反映出斷裂變形的空間演化。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。Under the mountains these condition would call for a deficiency in density of the crustal rocks.
要滿足這種條件,山脈下面地殼巖石的密度應當有一個虧損。Rock dike inserted into quartz sandstone and was then weathered and denuded to form a precipice
石英砂巖受巖脈穿插,巖脈被風化剝蝕后形成絕壁。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。Three other extrasolar planets believed to be of rocky composition have been reported, but they orbit a pulsar - the flashing corpse of an exploded star - rather than a normal type of star
之前人們曾報道過另外三顆據信由巖石組成的太陽系外行星,但是,它們是圍繞著一顆脈沖星(恆星爆發后遺留的發光的殘存物)運轉的,而不是一顆常態的恆星。Zircon geochronology and ree in leucosome of neoproterozoic granite gneiss, jiaonan area
膠南新元古代花崗片麻巖中淡色脈體的鋯石年代學和稀土元素研究The ore is partly massive and partly disseminated (veinlets and speckles) and there is a halo of disseminated minerals in the surrounding rock.
礦石部分呈塊狀,部分呈浸染狀(細脈狀和斑點狀),圍巖中並有礦物的浸染暈存在。We find that the petrology characteristic of all the samples have no characteristic of meteoric water such as geopetal structure, infiltrative sand, ( uniform cement and gravitational cement on base of the research of the dolomite in the regions. on the dot diagram of combination of mgco3 ( mol % ) and sr, the dot are all close to the line of seawater whether they are microlite - crystalline penecontemporaneous dolostone or diagenetic dolostone of various crystals. the 87sr / 86sr value of dolostone or matrix is less than the one of sparry calcite in cave or vein, and close to the value of seawater
通過本區白雲巖的研究發現:已有的白雲巖樣品的巖石學特徵沒有顯示出如示底構造、滲濾沙、新月型膠結物和重力膠結物等大氣淡水作用的特徵;在白雲石mgco _ 3mol百分數和白雲石sr含量的投點圖中,無論是準同生成因的泥?微晶白雲巖,還是粉?細晶(或中晶,或細晶以上的不等晶)的成巖白雲巖,均投在海水線的附近;白雲巖(或基質)的~ ( 87 ) sr / ~ ( 86 ) sr比值顯著低於與孔洞或脈中充填的亮晶方解石,且與海水值十分接近, ~ ( 13 ) c和~ ( 18 ) o值顯著高於孔洞或脈中充填的亮晶方解石,也偏向于海水值; mn含量則顯著低於孔洞或脈中充填的亮晶方解石。According to sedimentary characteristics of the carboniferous taiyuan formation in feicheng coal field, including lithology, size distribution, sedimenta ry structure, geochemistry and paleontology etc., the carboniferous paleoenvironme nt of this area is divided into carbonate open platform and tidal flat environme nt. it is recognized that the taiyuan formation is formed in the epicontinental c oast which is dominated by the tidal. the peat flat is the important paleoenviron ment for coal accumulation. the tidal channel destroys the coal bed. the pulsative vibration of the crust is the major factor which controls the evolution of the sedimentary environment and the coal accumulation
根據肥城煤田石炭系太原組的巖性、粒度分佈、沉積構造、地球化學及古生物等沉積特徵,將該區晚石炭世古地理劃分為碳酸鹽開闊臺地和潮坪環境,認為太原組形成於潮汐作用為主的陸表海海岸,泥炭坪是成煤的重要古地理環境,潮渠對煤層有一定的破壞作用,地殼的脈動性振蕩作用是控制沉積環境演化和聚煤作用的主要因素。Abstract : according to sedimentary characteristics of the carboniferous taiyuan formation in feicheng coal field, including lithology, size distribution, sedimenta ry structure, geochemistry and paleontology etc., the carboniferous paleoenvironme nt of this area is divided into carbonate open platform and tidal flat environme nt. it is recognized that the taiyuan formation is formed in the epicontinental c oast which is dominated by the tidal. the peat flat is the important paleoenviron ment for coal accumulation. the tidal channel destroys the coal bed. the pulsative vibration of the crust is the major factor which controls the evolution of the sedimentary environment and the coal accumulation
文摘:根據肥城煤田石炭系太原組的巖性、粒度分佈、沉積構造、地球化學及古生物等沉積特徵,將該區晚石炭世古地理劃分為碳酸鹽開闊臺地和潮坪環境,認為太原組形成於潮汐作用為主的陸表海海岸,泥炭坪是成煤的重要古地理環境,潮渠對煤層有一定的破壞作用,地殼的脈動性振蕩作用是控制沉積環境演化和聚煤作用的主要因素。The gangue minerals are mostly carbonating minerals, fluorite, barite, celestite and so on ; the rock alteration is slightly silicified, carbonated, baritizated, celestited, which is low - temperature alteration. because of continual downgoing extrusion from india plate to euro - asian plate, there are some thrusting nappe structures in lanping basin related to the orogens on the two sides
礦床中礦石礦物發育典型的中低溫熱液成因的礦物組合,如黝銅礦系列、方鉛礦、黃銅礦等,脈石礦物主要為碳酸鹽類礦物、螢石、重晶石、天青石等;圍巖蝕變主要發育弱硅化、碳酸鹽化、重晶石化、天青石化等低溫蝕變組合。Solidifying chiefly as a minor intrusion, especially as a dike or sill, before reaching the earth ' s surface. used of rocks
半深成的,淺成的在到達地球表面之前的主要作為小型巖石群固化的,尤其象巖脈或巖床的凝固用於指巖石Main content in simulation is the spatio - temporal evolution of the set of descriptive variables characterizing tectonic mineralization state under coupling of various processes as following : ( 1 ) variables related to forming and property of ore - forming fluid, such as dissolution rate of minerals ( include metal minerals ) in rock, concentration and saturation of aqueous species in fluid, temperature, pressure, and ionic strength etc. ; ( 2 ) variables related to structural deformation and fluid flow, such as stress, deformation rate, fracture network, porosity, fracture permeability ; ( 3 ) variables related to precipitation and mineralization, such as nucleation rate of gangue and metal minerals, accumulation precipitation of various minerals, etc. ; ( 4 ) spatio - temporal coupling relation of various variables above, such as the coupling relationship between spatio - temporal evolution of fracture permeability and flow and focus of fluid and ore - forming
模擬的主要內容是在各種過程耦合作用下,以下描述構造成礦體系的主要變量的時空演化:與成礦流體的形成和性質有關的變量,如地層中礦物(包括成礦物質)的溶解速率、流體中各組分的濃度與飽和度、流體溫度、壓力、離子強度等;與構造變形和流體運移有關的各變量,如應力與變形速率、巖石孔隙度、構造(斷裂)滲透率等;與沉澱成礦有關的變量,如礦物(金屬礦物和脈石礦物)的成核速率、各礦物的沉澱量等;上述各有關變量間的時空耦合關系,如斷裂滲透率時空演化與流體流動、匯聚和成礦的耦合關系等。Coal, iron, limestone, dolostone, vein quartz and water resources reach better complementary ; nonmetal ores have abundant reserves and distribute in flakes centralized ; cross railway, network of highways, network circuit in the district, offer the advantage to concentrate on exploitation and transportation and processing
煤、鐵、石灰巖、白雲巖、脈石英等礦產資源與水資源達到了較好的配套程度;非金屬礦儲量豐富,分佈連片集中;區內鐵路、公路網、電路網路縱橫交錯,為礦產資源的集中開采、運輸、加工提供了有利條件。分享友人