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 component
 Study on a Fossil of Dinosaur Egg Component 恐龙蛋化石物质组分研究 短句来源 The Deformational Condition and Component Migration of Mylonites in Fuchashan Ductile Shear Zones in the Southern Tanchen Lujiang Fault Belt 郯庐断裂带南段桴槎山韧性剪切带糜棱岩的变形条件和组分迁移系 短句来源 Contents of Cu, Zn, Pb, Cd, Cr, Hg, As in the sediments of the Xiamen sea area were analyzed, and each speciation of Cu, Zn, Pb, Cd, Cr in silt and clay ( < 63 μm component ) was extracted by sequential extraction of BCR. 对厦门海域沉积物中Cu,Zn,Pb,Cd,Cr,Hg,As的全量进行了分析,同时采用BCR连续提取法对粉砂和粘土组分(小于63μm组分)中Cu,Zn,Pb,Cd,Cr进行了形态提取。 短句来源 The prediction effect of three multi-component adsorption models: extended-Langmuir equation, Ideal Adsorbed Solution theory and Numerical Analysis method, are evaluated. Moreover, the component splits in gas and adsorbed phase are discussed. 所选模型包括Extended-Langmuir方程(扩展的Langmuir方程)、Ideal Adsorbed Solution理论(理想吸附溶液理论)和Numerical Analysis方法(数值分析方法),并且进一步讨论了多组分气体吸附过程中的组分分割情况。 Water-Drive Oil Phsical Model Test and the Analysis Research on the Component Changing of Oil during Water-drive 水驱油物模试验及原油在水驱过程中组分变化的分析研究 短句来源 更多
 composition
 The carbon isotope of group composition of crude oil is-27.4‰～-28.7‰,and the fractionation effect of the carbon isotope of group composition is not obvious. 原油碳同位素值分布于-27.0‰--28.0‰,饱和烃碳同位素值在-27.4‰--28.7‰,族组分之间的碳同位素分馏效应较小; 短句来源 Study on Structure and Composition of Dinosaur Egg fossil from Tiantai Basin 天台盆地恐龙蛋化石结构和组分研究 短句来源 A Discussion of Formation Mechanism and Its Significance of Characteristics of Chemical Composition and Isotope of Water-dissolved Gas in Turpan-Hami Basin 吐哈盆地水溶气组分与同位素特征形成机理及意义探讨 短句来源 The Characteristics of Mineral Composition of Xuyaogou Gold Deposit in Neixiang County 内乡许窑沟金矿矿物组分特征 短句来源 Low resistance reservoir porosity composition evaluation method in North Tarim basin with conventional well logging data 用常规测井资料评价塔北低阻储层孔隙组分的方法 短句来源 更多
 constituents
 The Study of Constituents Contained in the Veins Nos.56 and 58 of a Niob-Tantalum Mine Somewhere in Fujian Province and the Analysis of Occurrence State of Nb, Ta and Sn 福建某铌钽矿区56、58号脉物质组分及铌、钽、锡赋存状态研究 短句来源 PRLIMINARY GEOCHEMICAL STUDY OF SPECIAL CONSTITUENTS IN MINERAL WATER 天然矿泉水特殊组分的地球化学初步研究 短句来源 The total percentages of the major and minor constituents for MS-E1 and MS-S1 were 99.8% and 99.6%,respectively. 全组分百分总和分别为99.8%和99.6%。 短句来源 A PROXIMATE MATHEMATICAL MODEL OF THE CONTENT OF MAIN CHEMICAL CONSTITUENTS IN AN INDUSTRIAL PHOSPHORUS ORE 工业磷矿石主要化学组分含量近似数学模型 短句来源 The distribution characters and the origin of the main constituents ( He,H2,Ar, N2, CO2, CH4, Hg)in fault gases released from the mineral springs in West Yunnan are discussed in this paper. 本文讨论了滇西地区由温泉释放的断层气体中各主要组分(He、H_2、Ar、N_2、CO_2、CH_4、Hg)的分布特征及其成因机制。 短句来源 更多
 constituent
 THE APPLICATION OF GROUNDWATER CHEMICAL CONSTITUENT CLUSTER ANALYSIS METHOD FOR GROUNDWATER RESOURCES EVALUATION IN MIXIAN COUNTY 地下水化学组分聚类分析在河南密县水资源评价中的应用 短句来源 A DISCUSSION ON THE CAUSE OF SUDDEN JUMP OF WATER RADON AND GAS CONSTITUENT CONTENT IN HUAQINGCHI NO. 4 SPRING AND THE ELIMINATION OF ITS INTERFERENCE 华清池4~#泉水氡及气体组分含量突跳原因探讨及干扰排除 短句来源 The kaolin has good quality after concentration, for it has low content of the impurities , abundant fine constituent ( <2 μm), and high natural whiteness of the bleached product. 精选漂白后的高岭土纯度高(Al_2O_3含量达36.4%),细粒(<2μm)组分含量和自然白度均较高,是一种优质高岭土. 分选出的石英等尾沙SiO_2含量大于90%,可综合利用. 短句来源 And the rules in relationship and degree of diffusion and movement of seam gas contrlled by gas constituent, reservoir medium, temperature, pressure and geological stress are put forward. 分析解吸扩散运移过程中气体组分、储层介质、温度、压力、地应力等内、外因素对煤层气扩散运移的制约关系及程度,获得规律性的认识。 短句来源 (4)the constituent analysis of being greater than 0.063 mm sediments shows biogenous debris is 66.97%, of which the calcareous fraction and siliceous one are 23.43% and 43.54% respectively. The high value of calcareous fraction is mainly distributed in the region of the water depth of being less than 3 500 m and one of the siliceous fraction is distributed in the deeper area of being greater than 3 500 m; (4)对沉积物中大于0 063 mm的物质全组分分析表明,生源组分占66 97%,其中钙质生物含量为23 43%,硅质生物含量为43 54%,钙质生物高值区主要分布在水深小于3 500 m的海区,硅质生物高值区主要分布在水深大于3 500 m的深水区; 短句来源 更多

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 component
 Finally the cubic surfaces of each component ofQ are studied in details by determining their stabilizers, their rational representations and whether they can be expressed as the determinant of a 3×3 matrix of linear forms. LetD be a Hermitian symmetric space of tube type,S its Shilov boundary andG the neutral component of the group of bi-holomorphic diffeomorphisms ofD. This underlying group H1(X, T \bar{X}) can be described as a generalized Prym variety, whose connected component is either an abelian variety or a degenerate abelian variety. A special component of the tensor product is the so-called Cartan component Vλ+μ which is the component with maximal highest weight. Consider a non-connected algebraic group G = G ? Γ with semisimple identity component G and a subgroup of its diagram automorphisms Γ. 更多
 composition
 We study the composition of the functor from the category of modules over the Lie algebra $\mathfrak{gl}_m$ to the category of modules over the degenerate affine Hecke algebra of GLN introduced by I. We also establish a connection between the composition of the functors, and the "centralizer construction" of the Yangian ${\rm Y}(\mathfrak{gl}_n)$ discovered by G. We also determine all the composition factors of the symmetric tensors of the natural osp(2|2n)-module. For Fourier-bandlimited symbols, we derive the expected formulae for composition and commutators and construct an orthonormal basis of common approximate eigenvectors that could be used to study spectral theory. For Fourier-bandlimited symbols, we derive the expected formulae for composition and commutators and construct an orthonormal basis of common approximate eigenvectors that could be used to study spectral theory. 更多
 constituents
 PHYTOCHEMICAL CONSTITUENTS AND ANTIMICROBIAL ACTIVITY FROM THE STEMS OF JATROPHA MAHESHWARII New bioactive constituents from eleutherine americana Three new constituents were isolated from Eleutherine americana Merr. The optimal constituents of microemulsion were found from pseudoternary phase diagrams: the mass ratio of Span80 to PS was 4:1 and complex surfactant to cosurfactant was 1:1. To study the bioactive constituents from Andrographis paniculata, two compounds were isolated and purified by column chromatography on AB-8 macro-porous adsorption resin and polyamide. 更多
 constituent
 An immunoenhancing polysaccharide isolated from the hot aqueous extract of mature pods of Moringa oleifera was found to contain only D-glucose as a monosaccharide constituent. Polysaccharides are the most important functional constituent in Lycium barbarum fruits. The constituent ratio of thyroglossal duct carcinoma among surgically excised thyroglossal duct lesions was 2.9%. All these constituents were classified into dissolved and suspended groups by using a 0.45-μm membrane filter, and the concentration of each constituent in each group was analyzed. A biosorbent containing an association of oil-oxidizing bacteria as the main constituent was developed, in which Lessorb, a product of moss and wood thermal processing, was used as a carrier. 更多
 The studied area is located some 70—80 km. northwest of Nanking of the Kiangsu province, This area is composed of complexly folded late pre-Cambrian metamorphics, deeply eroded to a peneplane. The Changbaling formation is of late Sinian age (dated to be 864—1 ,026 m. y. by Uranium-lead methed), and comprises Volcanics of submarine origin and marine sediments, consisting chiefly of a thick series of quartz keratephyres interealated with minor amount of spilites and related volcanic clastics and tufaceous sediments,... The studied area is located some 70—80 km. northwest of Nanking of the Kiangsu province, This area is composed of complexly folded late pre-Cambrian metamorphics, deeply eroded to a peneplane. The Changbaling formation is of late Sinian age (dated to be 864—1 ,026 m. y. by Uranium-lead methed), and comprises Volcanics of submarine origin and marine sediments, consisting chiefly of a thick series of quartz keratephyres interealated with minor amount of spilites and related volcanic clastics and tufaceous sediments, accompanied by marine chert beds, dolomitic limestone lenses, siltstones, and shales. The whole series has suffered to a low-grade regional metemorphism, corresponding to the green schists facies. The rocks of the quartz keratophyres possess porphyritic textures and some rhyolitic flow structures. Their principle mineral constituents are albite 55—70%, quartz 29—40%, muscovite (sericite) 3—7%, with minor amount of microcline, and apatite and magnetite as accessories. Microscopically, the rocks possess obvious successive replacement features. Earlier soda-metamorphism forms albite motacrysts, which include residual masses of orthoclase. Later soda-metamorphism (metasomatism) is represented by albito-quartz veinlets, which cut the earlier albite metacrysts, and also form minute polysynthetically twinned albite rims around their borders. Still later comes some microcline which replaces earlier albite along its cleavage planes and grain borders. Last is silicification. Thus, the sequence of metasomatic replacement is: soda-metamorphism → Soda-silica metasomatism → potassium metasomatism → silicification. Corroded quartz phenocrysts contain minute melting inclusions with some devitrification effects, of which, the temperature of homogenization is measured to be 1,030—1180℃. The decrepitation temperature of the liquid inclusions which occur along certain zones in the bordering parts of quartz crystals, is measured to be 300℃. The spilites here occur as intercalated beds in the quartz keratophyre series, and partly they form dikes or some other sub-volcanic forms. Mineralogically, they are composed of albite, epidote, chlorite, magnetite calcite, sodic actinolire, etc. Similarly, the spilites also show obvious features of sodic replacement. Sugary grains of albite cut or replace earlier-formed albite, forming zigzag boudaries around the latter. All the above features indicate that, both the quartz keratophyres and the spilites were formed as a result of successive soda metamorphism (soda replacement). The petro-chemical characters of the quartz keratophyres and the spilites are as shown in the following table: Based upon the petro-chemical properties and the plotting of the data, as Calculated from a large number of rock analyses, according to the various plotting methods, it is brought out that the metamorphosed volcanics of the Changbaling area belong to sub-alkaline volcanic series, being sodic spilite-quartz keratophyre series. The spilites and quartz keratophyres are comagmatic rocks, and their primary magma was probably intermediate to acidic in character. According to the geologic environments for the formation of the associated sedimentary strata, the volcanic rock combination, and their petrologic and petrochemical char acteristics, the writers are inclined to think, that, such a volcanic-sedimentary series with the acidic volcanic components constituting the major part, was probably formed in rather shallow seas near some continental margin, or close to some island arc during the early stage of development, and that, they are different from those spilites or spilite-keratophyre series with the basic componemts constituting the major parts, which represent probably earlier basic volcanic phases deposited in some deep eugeosynclines, or close to some spreading center of ancient sea floor. Of Course, they are also different from the andesiterhyolite series of continental origin. The primary magma here was probably intermediate to acidic in character, which has differentiated into the acidic and basic extremities. During the course or fractional crystallization, the magmas were contaminated by soda from the sea water and the marine sediments, and later the voicanics suffered from soda metamorphism and metasomatism during the time of deep burial and later regional orogenesis and metamorphism. Such is the writers' idea about the origin of the spilite-Quartz keratophyre series here. 前寒武纪张八岭建造是一套海底喷发的火山岩系,其原岩由大量石英角斑岩和少数细碧岩及其火山碎屑岩、凝灰质沉积岩组成,并与海相的硅质岩、白云质石灰岩透镜体、粉砂岩、页岩等伴生。受区域变质作用影响,形成绿片岩相的矿物组合。岩石具典型的熔岩组构。主要矿物成分为:石英、低温完全有序的钠长石(An<5)和绿泥石、绿帘石、磁铁矿等。岩石有明显的交代观象,其交代顺序为:钠化→钠硅化→钾化→硅化。据玻璃质固化包裹体测温,其岩浆温度为1030—1180℃;液相包裹体测温,其热液蚀雯温度为300℃。由岩石化学分析资料说明:变质火山岩为弱碱质钠质细碧岩——石英角斑岩系。两者为同源岩浆岩。其原始岩浆成分为——中酸性岩浆。经分异作用,主要向酸性岩浆转化;少量向基性。在岩浆结晶分异的同时并遭受海水及海相沉积物中钠质的混染,成为富钠质的岩浆,逐渐演变成富钠的透岩浆溶液,发生钠质交代,这种作用继续延到岩浆期后的热液期。其后岩石又经低级区域变质作用,形成石英角斑岩及细碧岩。根据变质火山岩的岩石学、岩石化学及火山岩中伴生岩石特征等地质因素,说明:它形成于浅海环境,靠大陆边沿,或岛弧。它是以酸性火山岩为主的,细碧岩——石英角斑岩系,与产于优地槽(或大...前寒武纪张八岭建造是一套海底喷发的火山岩系,其原岩由大量石英角斑岩和少数细碧岩及其火山碎屑岩、凝灰质沉积岩组成,并与海相的硅质岩、白云质石灰岩透镜体、粉砂岩、页岩等伴生。受区域变质作用影响,形成绿片岩相的矿物组合。岩石具典型的熔岩组构。主要矿物成分为:石英、低温完全有序的钠长石(An<5)和绿泥石、绿帘石、磁铁矿等。岩石有明显的交代观象,其交代顺序为:钠化→钠硅化→钾化→硅化。据玻璃质固化包裹体测温,其岩浆温度为1030—1180℃;液相包裹体测温,其热液蚀雯温度为300℃。由岩石化学分析资料说明:变质火山岩为弱碱质钠质细碧岩——石英角斑岩系。两者为同源岩浆岩。其原始岩浆成分为——中酸性岩浆。经分异作用,主要向酸性岩浆转化;少量向基性。在岩浆结晶分异的同时并遭受海水及海相沉积物中钠质的混染,成为富钠质的岩浆,逐渐演变成富钠的透岩浆溶液,发生钠质交代,这种作用继续延到岩浆期后的热液期。其后岩石又经低级区域变质作用,形成石英角斑岩及细碧岩。根据变质火山岩的岩石学、岩石化学及火山岩中伴生岩石特征等地质因素,说明:它形成于浅海环境,靠大陆边沿,或岛弧。它是以酸性火山岩为主的,细碧岩——石英角斑岩系,与产于优地槽(或大洋扩张部位)发展早期的蛇绿岩套;包括基性、超基性岩。硅质岩及以基性组分为主的细碧岩——角斑岩建造是迥然不同的。它与岛弧晚期阶段的陆相安山岩——流纹岩也有一定的差别,可能是岛弧早期的产物。 The studied area is located some 70—80 km.northwest of Nanking of the Kiangsu province.This area is composed of complexly folded late pre-Cambrian metamorphics,deeply eroded to a peneplane.The Changbaling formation is of late Sinian age(dated to be 864—1,026 m.y.by Uranium-lead method),and comprises volcanics of submarine origin and marine sediments,consisting chiefly of a thick series of quartz keratephyres interealated with minor amount of spilites and related volcanic clastics and tufaceous sediments.accompanied... The studied area is located some 70—80 km.northwest of Nanking of the Kiangsu province.This area is composed of complexly folded late pre-Cambrian metamorphics,deeply eroded to a peneplane.The Changbaling formation is of late Sinian age(dated to be 864—1,026 m.y.by Uranium-lead method),and comprises volcanics of submarine origin and marine sediments,consisting chiefly of a thick series of quartz keratephyres interealated with minor amount of spilites and related volcanic clastics and tufaceous sediments.accompanied by marine chert beds,dolomitic limestone lenses,siltstones,and shales.The whole series has suffered to a low-grade regional metemorphism,corresponding to the green schists facies. The rocks of the quartz keratophyres possess porphyritic textures and some rhyolitic flow structures.Their principle mineral constituents are albite 55—70%, quartz 20—40%,muscovite(sericite)3—7%,with minor amount of microcline, and apatite and magnetite as accessories. Microscopi(?)ally,the rocks possess obvious successive replacement features. Earlier soda-metamorphism forms albite motacrysts,which include residual mas- ses of orthoclase.Later soda-metamorphism(metasomatism)is represented by albito-quartz veinlets,which cut the earlier albite metacrysts,and also form minute polysynthetically twinned albite rims around their borders.Still later comes some microcline which replaces earlier albite along its cleavage planes and grain borders.Last is silicification.Thus,the sequence of metasomatic repla- cement is:soda-metamorphism→Soda-silica metasomatism→potassium metaso- matism→silicification. Corroded quartz phenocrysts contain minute melting inclusions with some devitrification effects,of which,the temperature of homogenization is measured to be 1,030—1180℃.The decrepitation temperature of the liquid inclusions which occur along certain zones in the bordering parts of quartz crystals,is measured to be 300℃. The spilites here occur as intercalated beds in the quartz keratophyre series, and partly they form dikes or some other sub-volcanic forms.MineralogicaUy, they are composed of albite,epidote,chlorite,magnetite calcite,sodic actinol- ire,etc.Similarly,the spilites also show obvious features of sodie replacement. Sugary grains of albite cut or replace earlier-formed albite,forming zigzag bou- daries around the latter.All the above features indicate that,both the quartz keratophyres and the spilites were formed as a result of successive soda meta- morphism(soda replacement). The petro-chemical characters of the quartz keratophyres and the spilites are as shown in the following table: oxides% rock types SiO_2 K_2O+Na_2O Na2_O K_2O CaO MgO FeO+Fe_2O_3 quartz keratephyres >70(71—78) (?)5—8 >5 1.5± 0.45 0.37 2.13 spilite >40(41—55) >6(4—8) ≈5 0.5± 4.13 3.46 15.65 Based upon the petro-chemical properties and the plotting of the data,as Calculated from a large number of rock analyses,according to the various plot- ting methods,it is brought out that the metamorphosed volcanics of the Chang- baling area belong to sub-alkaline volcanic series,being sodic spilite-quartz ke- ratophyre series.The spilites and quartz keratophyres are comagmatic rocks,and their primary magma was probably intermediate to acidic in character.Accord- ing to the geologic environments for the formation of the associated sedimentary strata,the volcanic rock combination,and their petrologic and petrochemical char acteristics,the writers are inclined to think,that,such a volcanic-sedimentary series with the acidic volcanic components constituting the major part,was prob- ably formed in rather shallow seas near some continental margin,or close to some island arc during the early stage of development,and that,they are dif- ferent from those spilites or spilite-keratophyre series with the basic compo- nemts constituting the major parts,which represent probably earlier basic vol- canic phases deposited in some deep eugeosynclines,or close to some spreading center of ancient sea floor.Of Course,they are also different from the andesite- rhyolite series of continental origin.The primary magma here was probably inter- mediate to acidic in character,which has differentiated into the acidic and basic extremities.During the course or fractional crystallization,the magmas were contaminated by soda from the sea water and the marine sediments,and later the volcanics suffered from soda metamorphism and metasomatism during the time of deep burial and later regional orogenesis and metamorphism.Such is the writers' idea about the origin of the spilite-Quartz keratophyre series here. 前寒武纪张八岭建造是一套海底喷发的火山岩系,其原岩由大量石英角斑岩和少数细碧岩及其火山碎屑岩、凝灰质沉积岩组成,并与海相的硅质岩、白云质石灰岩透镜体、粉砂岩、页岩等伴生。受区域变质作用影响,形成绿片岩相的矿物组合。岩石具典型的熔岩组构。主要矿物成分为:石英、低温完金有序的钠长石(An<5)和绿泥石、绿帘石、磁铁矿等。岩石有明显的交代观象,其交代顺序为:钠化→钠硅化→钾化→硅化。据玻璃质固化包裹体测温,其岩浆温度为1030—1180℃;液相包裹体测温,其热液蚀变温度为300℃。由岩石化学分析资料说明:变质火山岩为弱碱质钠质细碧岩——石英角斑岩系。两者为同源岩浆岩。其原始岩浆成分为——中酸性岩浆。经分异作用,主要向酸性岩浆转化;少量向基性。在岩浆结晶分异的同时并遭受海水及海相沉枳物中钠质的混染,成为富钠质的岩浆,逐渐演变成富钠的透岩浆溶液,发生钠质交代,这种作用继续延到岩浆期后的热液期。其后岩石又经低级区域变质作用,形成石英角斑岩及细碧岩。根据变质火山岩的岩石学、岩石化学及火山岩中伴生岩石特征等地质,因素,说明:它形成于浅海环境,靠大陆边沿,或岛弧。它是以酸性火山岩为主的,细碧岩——石英角斑岩系,与产于优地槽(或...前寒武纪张八岭建造是一套海底喷发的火山岩系,其原岩由大量石英角斑岩和少数细碧岩及其火山碎屑岩、凝灰质沉积岩组成,并与海相的硅质岩、白云质石灰岩透镜体、粉砂岩、页岩等伴生。受区域变质作用影响,形成绿片岩相的矿物组合。岩石具典型的熔岩组构。主要矿物成分为:石英、低温完金有序的钠长石(An<5)和绿泥石、绿帘石、磁铁矿等。岩石有明显的交代观象,其交代顺序为:钠化→钠硅化→钾化→硅化。据玻璃质固化包裹体测温,其岩浆温度为1030—1180℃;液相包裹体测温,其热液蚀变温度为300℃。由岩石化学分析资料说明:变质火山岩为弱碱质钠质细碧岩——石英角斑岩系。两者为同源岩浆岩。其原始岩浆成分为——中酸性岩浆。经分异作用,主要向酸性岩浆转化;少量向基性。在岩浆结晶分异的同时并遭受海水及海相沉枳物中钠质的混染,成为富钠质的岩浆,逐渐演变成富钠的透岩浆溶液,发生钠质交代,这种作用继续延到岩浆期后的热液期。其后岩石又经低级区域变质作用,形成石英角斑岩及细碧岩。根据变质火山岩的岩石学、岩石化学及火山岩中伴生岩石特征等地质,因素,说明:它形成于浅海环境,靠大陆边沿,或岛弧。它是以酸性火山岩为主的,细碧岩——石英角斑岩系,与产于优地槽(或大洋扩张部位)发展早期的蛇绿岩套;包括基性,超基性岩,硅质岩及以基性组分为主的细碧岩——角斑岩建造是迥然不同的。它与岛弧晚期阶段的陆相安山岩——流纹岩也有一定的差别,可能是岛弧早期的产物。 This paper deals with the mineralogical and petrological features of eclogites from Mts. Hongtushan and Qinglongshan of the Donghai region, Jiangsu province. A℃ording to the experimental results of related rocks the genetic condition of eclogites can be estimated as T = 890° - 1275℃ and P = 17.25-24.75kb, and at the depth of 50-70km. From the petrochemical characters, the parent rock of eclogites can be considered as tholeiitic basalt. It can be assumed that the evolutionary process of eclogites in studied region... This paper deals with the mineralogical and petrological features of eclogites from Mts. Hongtushan and Qinglongshan of the Donghai region, Jiangsu province. A℃ording to the experimental results of related rocks the genetic condition of eclogites can be estimated as T = 890° - 1275℃ and P = 17.25-24.75kb, and at the depth of 50-70km. From the petrochemical characters, the parent rock of eclogites can be considered as tholeiitic basalt. It can be assumed that the evolutionary process of eclogites in studied region started with metamorphism of tholeiitic basalt into basic granulite, and then, the basic granulite further turned into eclogite due to the dynamic process of progressive metamorphism. This process can be expressed by means of 0.61 hypersthene + plagio-clase (An = 61) = Omphacite (Jd = 39) + 0.61 kyanite + quartz. Finally, the eclogites a℃ompanied by the faulting intruded into the supracrustal migmatitic gneisses. In this process the temperature was decreasing from 1080℃±190℃ to 750℃ ± 80℃, and the pressure from 21 .0kb ± 3.75kb to 4.0kb± 2.5kb. So that, the sequent retrogressive metamorphism of eclogites was caused by the dynamic effect of faulting. The conditional formula of this dynamic metamorphism can be approximately expressed as P(kb) = 0.0506T(C)-33.65. 本文就红土山和青龙山榴辉岩的矿物、岩石组分和矿物共生组合特征,参照矿物、岩石实验数据和实验曲线,计算出该榴辉岩是在T=890°-1270℃,P=17.25-24.75Kb,相当于52—74公里深度的区域变质作用条件下形成。其原岩可能来源于拉斑玄武岩。榴辉岩在成岩后又遭受了剪切挤压的动力变质作用,使其经历了进变质和退变质作用。推测榴辉岩的成岩和迁移,所经历的条件是温度由1080℃±190℃降到750℃±80℃,压力由21.0Kb±3.75Kb 降到4.3Kb±2.5Kb,并被挤压到壳内混合岩化片麻岩系中,以大小不等的透镜体产出。动力变质的退变质作用,其温度、压力条件,本文计算的方程式为P(Kb)=0.0506T(℃)-33.65,为地震地质提供构造演变的条件和有关能量计算问题。 << 更多相关文摘
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