巖漿源 的英文怎麼說
中文拼音 [yánjiāngyuán]
巖漿源
英文
magma basin-
On the basis of the study on the petrology, trace element, and isotopic geochemistry, the primary magma of volcanic rocks can be divided into two series according to their originated rocks and degree of partial melting. one is the basanite - alkaline basalt - olivine tholeiite magma series, which are generated by partial melting from spinel iherzolite ; the other is nephelinite magma - alkaline picritic basalt magma, which are generated by partial melting of the garnet iherzolite
巖石化學、微量元素、同位素地球化學證據都表明,華北、華南地區的火山巖根據源巖和局部熔融程度的不同,可以分為兩個原生巖漿系列:一個是源巖為尖晶石二輝橄欖巖,隨著局部熔融程度的增加,形成的碧玄巖巖漿-堿性玄武巖巖漿-橄欖拉斑玄武巖巖漿;另一個是源巖為石榴石二輝橄欖巖,隨著局部熔融程度的增加形成的霞石巖巖漿-堿性苦橄玄武巖系列。Granites belong to s - type granite, but the biotite granite was affected by the mantle or mantle fluid
黑雲母花崗巖是殼源花崗巖但又受到幔源巖漿或幔源流體的影響。Magmatic consanguinity analysis of the muchen intrusion and xishantou formation volcanic rocks in zhejiang
浙江沐塵巖體與西山頭組火山巖的巖漿同源性分析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。The copper, iron, nickel and silver deposits might be assigned to four metallogenic series : i. the metallogenic subseries of copper, molybdenum, gold, silver deposit related to late devonian - early carboniferous basic - intermediate - acid hypabyssal intrusive - eruptive rocks ; ii. the metallogenic subseriesof iron, copper, zinc deposits related to early carboniferous basic - intermediate - acid volcanic - intrusive rocks ; iii. the metallogenic subseries of copper, silver, iron deposits related to middle - late carboniferous basic - intermediate - acid volcanic - intrusive rocks ; iv. the metallogenic subseries of copper, nickel and platinum group deposits related to late carboniferous - early permian basic - ultrabasic rocks ; 3, division of regional major metallogenic belts on the basis of the previous work conducted and by following the principles, grounds and methods of the division of metallogenic belts, areas and fields, . in light of this, metallogenic belts of grade iv were divided
1 、按照成礦系列理論的學術指導思想,將研究區華里西期銅礦床成礦系列劃分為四個成礦系列亞系列: 、晚泥盆?早石炭世延東?土屋?三岔口與中酸性巖漿侵入活動有關的cu 、 mo 、 au礦床成礦亞系列、早石炭世與巖漿作用有關的鐵、銅、金、銀礦床成礦亞系列、中石炭世與巖漿作用有關的cu 、 fe 、 ag 、 au礦床成礦亞系列、晚石炭世-早二疊世與幔源基性?超基性巖有關的銅、鎳、鉑族礦床成礦亞系列並從地層、巖漿巖、控礦構造、地球化學、成礦特徵等方面對各成礦亞系列進行了詳細論述。Based on the petrological, petrochemical and geochemical analyses about these rocks, it is concluded in this paper that the xenoliths were originated from the upper mantle, and comprised of both primitive pyrolite and the infusible solid residual of the upper pyrolite while the basaltic magma was melted out of it, which were brought up to the earth ' s surface via o1carnc eruption
根據其巖石學、巖石化學及地球化學特徵分析,包體來源於上地幔,其成因既有原始地幔巖,亦有上地幔巖經部分熔融出玄武巖漿后的難熔固相殘留物,被火山噴發攜帶至地表。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。From the study of sulfur isotope, i know that it is muti - mineralize feature, and mainly comes from magma sulfur
對硫同位素研究顯示出多期礦化特徵,但硫源則均以巖漿硫為主。It is argued that the magmatic activities of quartz - monzonite - porphyry and alkaline porphyry presumably played an essential role in mineralization of this district, that is, the porphyry system could be important sources of both ore - forming metals and ore - forming fluids, as well as a thermal engine that drived cycling of metallogenic fluids
初步認為石英二長斑巖與堿性斑巖巖漿活動對本區成礦有重要作用,既是重要的礦源和流體來源,又是驅動成礦流體循環的主要熱源。( 7 ) showing and determining the evidence and timing of the lithophere delamination occurred in qinling orogenic belt. pointing out the gold deposit in xiaoqinling - xiongershan region are mostly formed during indosinian to early - yanshan movement, related to mantle fluid injecting caused by lithosphere delamination and plutonic activity caused by further large - scale tectonic extension
初步闡述了東秦嶺地區的成礦分區和成礦特點,指出小秦嶺一熊耳山地區金礦形成的主要時期是印支一早燕山期,並且與巖石圈拆沉作用所引起的地慢流體活動和之後進一步大規模伸展作用產生的深源巖漿活動密切相關。The main source of nickel and platinum metals in the world is the nickel - copper sulfide magmatic deposits related to basic - ultrabasic body, which provide half or more amount of the metals in the world
世界鎳和鉑族金屬的主要來源是與基性超基性巖有關的銅鎳硫化物巖漿礦床。該類礦床佔世界鎳、鉑量的近一半或更多。The conclusion is that the enrichment of pt, pd is controlled by big and deep fractures, that emeishan basalt is one of the sources of pt and pd, and that basic - ultrabasic rock offers the ore - forming elements and the ore forming energy
指出研究區的深大斷裂對鉑族元素的富集表現出很好的控製作用,峨眉山玄武巖為鉑族元素的礦源層之一,巖漿巖為鉑族元素的富集提供了成礦物質及成礦能量。Dongzigou ag deposit and jianbaoshan au deposit are hosted in the sandstone of middle - proterozoic suberathem, which are developed from the proterozoic sediment metal source - rocks formed during the meso - proterozoic volcanism and reworked by the mesozoic tectono - magmatism during the formation of the metamorphic core complexes in eastern hebei. the dongzigou ag deposit has the characteristics of reformed strata - bound origin, the jianbaoshan au deposit, located in the detachment fault, is the alterated rock type. both deposits have the similar wall - rock alteration, and show the same trace element behavior, and ree patterns. they are the results of the multi - stage tectono - magmatism in the environment of continental extension in eastern hebei region. their mineralization depended on their wall rocks and relative location in metamorphic core complexs
賦存於中元古宙長城系常州溝組的洞子溝銀礦床和尖寶山金礦床是由密雲-都山變質核雜巖構造體系所控制的一組礦床。其成因為中元古宙火山巖漿活動形成的沉積礦源,后經中生代的變質核雜巖構造巖漿體系疊加改造而成。洞子溝銀礦床具有層控迭加改造的特點尖寶山金礦床則具有破碎蝕變巖型礦床的特點。There are plentiful mineral resources of nickel, cobalt, and copper in the northwest region of china, specially jinchuan superlarge copper - nickel sulflde magmatic deposit in gansu province, known for its large scale and typical metallogenetic feature in the world, is an important source of ni - cu metal mineral resource in our country. in contrast, jianchaling large cobalt - bearing nickel sulflde deposit in shannxi province is not famous and unmined, but many problems about the deposit are researched because of its special geologic settings and mineralization characteristic
我國西北地區有著豐富的鎳、鈷、銅等金屬的礦產資源,尤其是甘肅省金川超大型銅鎳硫化物巖漿礦床,以其超大規模及其典型的成礦特徵而聞名於世,是我國重要的鎳、銅金屬礦產基地,而相比之下,陜西省煎茶嶺大型鎳(鈷)礦床規模較小且未開采,但因其獨特的地質背景和成礦特徵而具有重要的研究意義。Beneath the relic sand of the outer shelf there is high grade of valuable heavy mineral sand ( for example ilmenite ) reaching the ii anomaly order of marine placers and it is of potential resource prospects
通過碎屑礦物判斷,原巖應是中酸性巖漿巖和淺變質巖類。鈦鐵礦等有用礦物在細砂層位中出現較厚的砂礦異常,顯示一定的淺海砂礦資源潛力。It seems that submarine magmatism and hydrothermal activity provided abundant ore - forming material for partly strata of mogaganri and yanshiping formations during the extension of bangongcuo - nujian marginal sea in early - middle jurassic. therefore parts of jurassic mogaganri and yanshiping formations became original source of ore - forming material. in later early jurassic, the collision and collage between qiangtang block and nianqing - tanggula block made favorable conditions in geological structure, magma and ore - forming fluids for the formation of gold deposits
在早-中侏羅世班公錯?怒江邊緣海擴張過程中,海底巖漿及其熱液作用,為侏羅系木嘎崗日群和雁石坪群部分層位提供了大量的礦源,使其成為初始礦源層;早白堊世晚期,羌塘地塊和岡底斯?念青唐古拉地塊碰撞拼貼,造成了有利的構造條件、巖漿條件、成礦流體條件,形成礦床。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。The paper based on synthesize domestic and foreign ' s study achievement about basalt, systematical review basalt research history, present condition about basalt formation contributing factor and it ' s magma source area quality, uses the basalt to distinguish the earth ' s mantle type, the connection basaltic magma evolution and continent dynamics, and uses the basalt to distinguish tectonic environment
系統地綜述了玄武巖的成因和巖漿源區性質、利用玄武巖判別地幔類型、玄武質巖漿的演化與大陸動力學關系,以及判別構造環境等方面研究的現狀。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。分享友人