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Gneissose is used to describe rocks with properties similar to gneiss.

Gneissose是用来描述与性质类似的片麻岩的岩石。

Representing formation age of the gneiss.

代表其片麻岩的形成年龄。

The application to the two types of gneisses from Shuanghe in the Dabie Mountains obtains the model temperatures of 695 to 930℃ for garnet and titanite from the paragneiss, and 560 to 750℃ for garnet and magnetite from the orthogneiss.

对大别山双河两种片麻岩所进行的模式温度计算得到副片麻岩中石榴石和榍石的模式温度为695~930℃,正片麻岩中石榴石和磁铁矿的模式温度为560~750℃。

The statistical results of ultra-high pressure metamorphic rocks' logging susceptibility indicated that the susceptibility became low gradually from serpentinite to quartz eclogite,rutile-bearing eclogite,orthogneiss,retrograded eclogite,phengite eclogite,paragneiss,chlorite amphiboli...

测井磁化率统计结果表明CCSD主孔100~2 000 m超高压变质岩的磁化率从高至低依次为:蛇纹岩、石英榴辉岩、金红石榴辉岩、正片麻岩、退变质榴辉岩、多硅白云母榴辉岩、副片麻岩、绿泥石角闪岩、角闪岩。

The granitic gneisses from the southern Dabie mountain with peculiar mineral assemblage, were characterized by containing riching-Mn garnet, phengite, sphene, quartz, clearly differ from UHP paragneiss.

南大别花岗片麻岩中具有独特的矿物组合,以含富Mn石榴石、多硅白云母、榍石、石英为特征而明显不同于超高压副片麻岩。

Neoproterozoic Baoxing Complex in middle to lower metamorphic grade, located in western margin of Yangtze Craton, consists mainly of metamorphic gabbroic, dioritic gneisses, tonalitic and granodioritic gneisses, and massive monzogranites The studies of petrochemistry and SmNd isotopes of Baoxing Complex reveal that the gabbroic and dioritic magmas came from a congenetic magma derived from the partial melting of spinel lherzolites in depletive mantle, and that the magma was intensively contaminated by crustal materials during its emplacement The tonalitic and granodioritic magma were derived from the partial melting of metamorphic basalts in the lower crust And the monzogranitic magma was formed from partial melting of metagreywacks Integrating the lithological association, their trace elements, SmNd isotopic characteristics and petrogenesis, the Baoxing Complex must likely have been emplaced in an island arc tectonic background at the Neoproterozoic active continental margin of Yangtze Craton

位于扬子克拉通西缘的新元古代宝兴杂岩主要由中低级变质的辉长质片麻岩、闪长质片麻岩、英云闪长质到花岗闪长质片麻岩和块状二长花岗岩组成。岩石地球化学和SmNd同位素特征表明,辉长质片麻岩和闪长质片麻岩为同源岩浆演化序列,原始岩浆起源于亏损地幔尖晶石橄榄岩的部分熔融,在上升和侵位过程中受到了地壳岩石强烈混染。英云闪长质和花岗闪长质岩浆形成于下地壳玄武质岩石部分熔融,而二长花岗质岩浆形成于杂砂岩的部分熔融。综合分析宝兴杂岩的岩石组合、微量元素和同位素特征,该杂岩体最有可能形成于新元古代活动大陆边缘火山弧构造背景,并可能经历了碰撞过程。

It suggested that the magmatism for the gneissic granites on the North Qaidam margin should have a duration time from - 950Ma to~910Ma, with peak age of~ 920Ma.

结合前人的研究结果,柴北缘花岗片麻岩的岩浆作用持续时间为~950 Ma~~910 Ma。

The petrology and geochemistry indicate that the protoliths of aluminum-rich gneisses are aluminum-rich pelitic and pelitic arenaceous sedimentary rocks, the protoliths of basic granulites are continental tholeiitic basalts. Therefore, the khondalite series may be produced at continental margin.

岩石学及地球化学的初步研究表明富铝的片麻岩的原岩为富铝的泥质和泥砂质沉积岩,所夹基性麻粒岩的原岩可能为大陆拉斑玄武岩,这套孔兹岩系的原岩可能形成于大陆边缘环境。

The Khondalite series are characterized by aluminum-rich gneisses consisting of sillimanite-garnet-biotite-monzonite gneiss, garnet-biotite-monzonite gniess, graphite-sillimanitebiotite schist, and garnet-amphibole two-pyroxene granulites occuring as lenses and layers within gneisses.

阿尔金构造带西段的孔兹岩系的主要由夕线石榴黑云二长片麻岩、石榴黑云二长片麻岩、含石墨夕线石榴黑云片岩等富铝的片麻岩类和夹于片麻岩中的石榴角闪二辉麻粒岩,并伴随有夕线榴长石石英岩及含石墨大理岩。

The data show the following ages: 1894±17 Ma and 1847±59 Ma for garnet pyroxenite of the Tiantangshan Group complex, indicating a Paleoproterozoic age; 1462±28 Ma for the metabasic volcanic rocks of the Yunkai Group complex, indicating the presence of fragments of the Meso- and Neoproterozoic oceanic crust in the Yunkai area; 906±24 Ma for the granitic gneiss intrusion is, which should be the product of the global Grenville collisional orogeny occurring around 1000 Ma BP. In addition, an inherited detrital zircon age of 2702±13 Ma was also obtained, which is the oldest age in the Yunkai area and even in Cathaysia, proving the presence of Neoarchean continental crustal material in Cathaysia.

获得天堂山岩群石榴辉石岩的形成年龄为1894Ma±17Ma和1847Ma±59Ma,表明其时代为古元古代;云开岩群洋中脊型变质基性火山岩的喷发年龄为1462Ma±28Ma,证明该地区存在中元古代的古洋壳残片;获得花岗质片麻岩的侵入年龄为906Ma±24Ma,应为1000Ma前后发生的全球性Grenville期造山作用的产物,并获得2702Ma±13Ma的继承碎屑锆石年龄,这是云开地区乃至华夏古陆目前获得的最古老年龄,证明华夏古陆曾存在新太古代陆壳物质。

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According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

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