巖漿分異 的英文怎麼說
中文拼音 [yánjiāngfēnyì]
巖漿分異
英文
magma splitting-
Based on an analysis of geochemical characteristics of rocks and trace elements as well as rare earth elements, this paper holds that they are products of crystallization differentiation of the same magma, that the major ore resource of this area is copper, and that gabbro - diabase is the main ore - bearing horizon
通過對巖石化學特徵和微量元素、稀土元素地球化學特徵的剖析，表明其是同一巖漿結晶分異的產物，本區主要礦產應為銅，輝長輝綠巖是主要的含礦層位。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。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。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。There are two stages to crux maifan stone ' s formation, the first stage is the forming stage of primary material, that is to say, the stage of mother rock formation, in this stage, the latter hypabyssal intrusive of crystallization fractionation and self - metamorphic process are an important factor to make sure them have many trace elements
麥飯石的形成中有兩個階段是十分關鍵的，第一個階段是基本物質的形成階段，即母巖的形成階段。在這一階段中巖漿分異結晶晚期的淺成侵入以及自變質作用，是保證其富含營養微量元素的重要條件。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。However, in the area with strong magma mingling, there are widespread abnormal fabrics, distinguished differences in the idiomophic - textures and the peritectic reaction, poililitic texture, metasomatism among the minerals, metasomatic border, embayment, rimmed structure, abnormal plagioclase zoning, relict fabric as well as the acicular apatite are very common
巖石的異常結構構造十分發育，礦物之間自形程度差異顯著，常見包晶反應、包含結構、交代邊、熔蝕邊、交代蠶食的港灣狀結構構造及交代縫合線、礦物鑲邊、斜長石異常環帶和礦物殘留等，多見指示巖漿混合的標志性礦物針狀磷灰石。Strong negative 8 eu shows the granites are high evolved granite. ( 6 ) the tetrad effect of ree and the obvious fractionation between k - rb, y - ho, zr - hf, nb - ta, and sr - eu in the dajishan granites indicate that, the aqueous fluid pays an important role in the evolution of the granites, as well as indicate that there exist enough interaction between peraluminous melt and aqueous magmatic fluid. furthermore the fluorine played a very important role in this process
（ 6 ）大吉山花崗巖類稀士元素具有「四重效應」配分的特點以及微量元素對kjrb 、 y / ho 、 zr艦f以及nb / ta發生明顯分異，暗示在花崗巖巖漿的演化過程中，經歷了充分的流體一熔體作用，同時分異出大量富含f 、 w等礦化劑元素和成礦元素的熱液流體，致使鎢礦的形成。However, compared with jinchuan ore - bearing intrusion, jianchaling ultrabasic intrusion formed by magma simple emplacement, and magma fractionated weakly with lower content of nickel and sulphur
而與賦存超大型鎳銅硫化物礦床的金川巖體相比，煎茶嶺超基性巖體為巖漿一次侵位形成，分異程度小，鎳、硫含量較低。According to the theory and study methods of comparative economic geology, the ore - forming geological background, geological feature, the elements geochemistry, the metallogenic geochronology about the two ore deposits and rock - bodys are systematic analysed, compared, and researched by means of new measure and assay technique. jianchaling nickel sulflde deposit is stress investigated in order to study similarities and differences between the two deposits in mineralization background, geochimistry, and metallogenesis, also to find the reasons for these, discuss the regularity of formation and distribution for the type deposit, and guide its exploration
本次工作依據比較礦床學的研究思路，在重點剖析煎茶嶺鎳礦床成礦地質、地球化學特徵的基礎上，採用新的分析測試技術手段，對這兩個巖漿硫化鎳礦床從成礦地質背景、巖體及礦床地質特徵、地球化學及成礦作用年代學等角度進行系統分析、比較和研究，找出二者的共同性和差異性，進一步更深刻地認識其成因並探討該類礦床形成與分佈的規律性以指導找礦。By applying the theory and method of geological anomaly, it is focused on the analysis of the characters of major geological anomalies and their effect of mineralization in daye - jiurui region. the analysis result shows that the basement fault anomalies control a few major large hidden batholiths and their associated orefields ; that the anomalies of cover structure confine most cu - au deposits and fe - cu deposits within their scope ; that the geochemical anomalies and lithofacies - paleogeographical anomalies are major geological factors leading to trataboundness of some cu - au deposits ; that the anomalies of rock operties provide the favorable chemical and physical conditions for the ore - forming process, including the seepage, circulation, convergence and deposit of ore - bearing hydrothermal solution ; that the anomalous ctive stage of mesozoic magmatite is almost consistent with the major mineralization epoch of the fe, cu deposits, and the structure of multi - levels, and the zoning in magmatic system determine the spatial distribution of the mineralization system. then, based on the above analysis, a comprehensive variate, geological combination entropy, is brought forward for reflecting the complex degree of the combination of geological ore - controlling factors. after circumscribing the anomalies of geological combination entropy, the relations between the anomalies and ore deposits are determined
從地質異常的角度，重點分析了大冶九瑞地區主要地質異常的特徵及其對成礦的影響.由分析可知：基底斷裂異常控制了本區若干重要規模較大的隱伏巖基及伴生礦田，而蓋層構造異常控制銅金礦床和鐵銅礦床的空間位置；地層的地球化學異常和巖相古地理異常是造成一些銅金礦床層控性的主要地質因素；蓋層的巖性異常為含礦熱液的滲流、循環、聚集和礦質沉澱等一系列成礦作用提供了有利的物理和化學條件；中生代巖漿巖的異常活動期也是本區主要的鐵銅成礦期，巖漿巖系統的多層分枝和分帶性結構控制了本區成礦系統的三維空間分佈.在上述分析的基礎上，構置了地質組合熵作為反映控礦地質因素組合系統結構復雜程度的綜合變量，並圈定出組合熵異常，由此確定了綜合地質異常與礦床的關系Layered mafic intrusions not only represent natural laboratories for studying processes of magmatic differentiation and assimilation within the crust, but also contain extensive precious and base metal mineralization
層狀鎂鐵質巖體不僅是研究巖漿分異演化過程和地殼混染作用的最佳天然實驗室，其中還廣泛賦存重要的稀有金屬和賤金屬礦床。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。Cu - ni sulfided mine complex locate in baimazai of jinping county is sub alkali iron - super iron, it ' s zoning is clear and it ' s ni - cu - co melting first and enrichment, its rare earth is rich in right lean light rare earth, but eu in olive rock is serious to be bad, gd - tb is tittles negative abnormity. above - mentioned show that the mineral is cone from mantle, and didn " t mix with crustal substance, and continent tholeiite magma turning into continent tholeiite emplacement after by surging
金平白馬寨銅鎳硫化礦床雜巖體分帶明顯、屬亞堿性鐵質-超鐵質巖、具ni - cu - co三元素先熔離，后富集的規律、稀土配分為右傾斜輕稀土富集型，但橄欖巖銪虧損顯著， gd - tb微小負異常，顯示成礦物質來源地幔，與地殼物質無混染和大陸拉斑玄武巖漿上涌后變為大洋拉斑玄武巖漿侵位特點。This paper points out that the ore - forming pattern of this mineral deposit is ore - bearing basic - superbasic magma melting - crystalline different and ore magma impulse injection in turn. it indicates there maybe has a ore shoot in the bottom of iii rock body ( interrupted below 650m ), and advises to geophysical prospecting in the mining shaft
並指出本礦床為含礦基性-超基性巖漿熔離-結晶分異和礦漿依次脈沖式貫入的銅鎳硫化物礦床成礦模式，指明號巖體下部（ 650m以下中斷）可能存在一富礦體，並建議進一步做井中物探證實。Xikuangshan type copper ore deposit named those fe - cu deposits hosted in yinmin formation, kunyang group, which located in kunyang rift valley and the edge of southwest yangzi platform. the best example is xikuangshan allotment, luoxue ore area, dongchuan, yunnan. the type deposit spread in south kunyang rift valley, include dongchuan, wuding - luoci, yuanjiang, yimen, huashengping, hongmenchang and so on
稀礦山式銅礦是指賦存在昆陽群因民組地層中的銅鐵礦床，其大地構造背景屬于元古代裂谷帶，大陸裂谷是超大型銅等多金屬礦形成和分佈的有利環境，在裂谷下部常發育異常地幔和巖漿源，裂谷空間上的多層次性使礦床具有明顯垂向分帶特徵，其演化時間的長期性、脈動性和繼承性便於多期成礦作用相互疊加、礦質的高度聚集。According to the types of rock density and magnetism of magmatite, with separation, continuation, derivation, and false color encoding between gravity anomaly and magnetic anomaly as well as a composite process of their attributive information, the magmatite belts reflected by both gravity anomaly and magnetic anomaly can be divided into two belts and seven group sections based on their positions in the tectonic unit, the magma series characteristics, and the time - space relationship with the ore belt
摘要根據不同類型巖漿巖的巖石密度、磁性的不同，通過重磁異常分離、延拓、求導、異常的彩色編碼及重、磁特徵信息的復合處理等，按重磁反映的巖漿巖帶所處的構造單元部位、巖漿系列特徵以及與礦帶的時空關系，將秦嶺造山帶劃分為2帶和7個群段。Variability analysis of overlying strata movement rule and mining field pressure under super - thick magmatic rock
巨厚巖漿巖下開采覆巖移動規律及采場壓力變異性分析分享友人