麻粒岩相
- 网络granulite;Granulite facies
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韧性变形可分为3个阶段:D1与前泛非期的构造事件有关,D2相应于区域性麻粒岩相变质作用,D3则可能反映泛非期造山作用后期的伸展作用。
Three generations of ductile deformation were identified , in which the D 1 is related to the event before Pan-African age , D 2 corresponds to the regional granulite peak metamorphism , whereas D 3 reflects ductile extension in late Pan-African orogenic period .
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东南极格罗夫山泛非期麻粒岩相变质作用
Pan-African Granulite Facies Metamorphism in the Grove Mountains East Antarctica
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内蒙集宁地区太古宙麻粒岩相变质作用的PTt轨迹及其大地构造意义
Metamorphic PTT path of the Archean granulite-facies terrane in Jining district , Nei mongol , and its tectonic significance
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麻粒岩相变质作用的SHRIMP锆石U-Pb年龄为(507·7±8·3)Ma。
The SHRIMP U-Pb zircon age of granulite facies metamorphism of the garnet two-pyroxene-plagioclase granulite is 507.7 ± 8.3 Ma ( 2 σ) .
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根据大坪石墨的拉曼光谱D:O峰强度比,估计这些石墨形成于麻粒岩相变质温度条件下,与石英中富CO2流体包裹体的均一温度(300.0~420.0℃)极不相称;
Based on D ∶ O peak intensity ratios , these graphite inclusions formed at granulite-facies metamorphic temperature , which is much higher than the homogeneous temperature ( 300.0 ~ 420.0 ℃) of the CO_2-enriched fluid inclusions in the graphite-bearing quartzes .
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麻粒岩相是中压区域高温变质作用的产物,变质作用的演化为退变质、近等压冷却(IBC)反时针型的PTt轨迹。
The granulite facies were resulted from the regional high-temperature metamorphism with medium pressure . The metamorphism evolution was the retrogressive metamorphism with approximate isobaric cooling ( IBC ) and counter clockwise PTt path .
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麻粒岩相超高温变质作用(G-UHTM)主要发育于新太古代至寒武纪岩石中;
Granulite facies ultrahigh temperature metamorphism ( G-UHTM ) is documented in the rock record predominantly from Neoarchean to Cambrian ;
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退变质流体,特别是麻粒岩相退变质期间产生的富CO2流体,是造成这一地区M类榴辉岩有别于其它地区M类榴辉岩-特别富18O的根源。
The retrogressive fluids , especially the fluids enriched in CO2 produced during the granulite-facies metamorphism , were locally active that resulted in the M-eclogites enriched extremely in 18O in the Rongcheng region as distinct from common M-eclogites from the Dabie-Sulu UHP zone besides this region .
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冀东地区麻粒岩相变质作用的演化冀东迁西群变质作用特征
The characteristics of metamorphism of the Qianxi group in Eastern Hebei Province
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麻粒岩相区地质研究现状及评述
A present study and comment on granulite facies terrene
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云开隆起低压麻粒岩相变质作用时代的重要发现
Nwe findings of low pressure granulite facies metamorphic age in the Yunkai uplift
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全球麻粒岩相地体与大陆下地壳成分模型
The Lower Continental Crust Composition Based on Discriminant Analysis of Global Granulite Terranes
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胶东莱西&平度一带麻粒岩相岩石的变质作用特征
The metamorphic characteristics of granulite facies rocks in the laixi-pingdu area in eastern Shandong Province
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内蒙古中部早元古代造山事件中麻粒岩相低压变质作用
Low-pressure metamorphism of granulite facies in an early Proterozoic orogenic event in central Inner Mongolia
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阿尔金麻粒岩相杂岩的时代及塔里木盆地的基底
The age of the Altun granulite facies complex and the basement of the Tarim Basin
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内蒙古太古宙麻粒岩相岩石中辉石特征和结晶温压条件
Characteristics and Temperature-Pressure Conditions for Crystallization of Pyroxene in Archean Granulite Facies of Inner Mongolia
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在高压岩石快速抬升的过程中叠加了麻粒岩相和角闪岩相退变质作用。
Granulite - and amphibolite-facies metamorphism was superimposed during the rapid uplift of high-pressure rocks .
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相平衡研究表明麻粒岩相岩石的保存与熔体丢失有关;
Recent research indicates that the preservation of granulite facies must have accompanied by melt loss .
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碰撞造山持续的压力导致了孔兹岩系岩石片麻岩到麻粒岩相变质作用。
Continued compression between the two blocks resulted in gneiss to granulite-facies metamorphism of khondalite-series rocks .
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早太古代以前(大于3000Ma),本区已发育了成分不均匀的原始地壳,后期表壳岩系沉积在这种地壳的裂谷当中并发生了麻粒岩相变质作用;
Before the early Archaean ( > 3 000Ma ), the chemically heterogeneous original crust had been developed .
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麻粒岩相条件下熔融反应与矿物相转变机制的实验研究
Experimental study of melting reaction and genetic mechanism of mineral phase trans - formation in granulite facies metamorphism
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集宁群和迁西群麻粒岩相变质流体的特征和成因
A comparative study on characteristics and origin of fluids during granulite-facies metamorphism of Jining Group and Qianxi Group
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最初形成的岩系的母岩浆,起源于麻粒岩相的下地壳。
The parent magma of several rock series formed earliest originated from the lower crust of granulite facies ;
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火成岩中的麻粒岩相捕虏体研究新进展及其对认识地壳生长与演化的意义
Progress in the study of GRANULITIC-FACIES xenoliths scavenged in igneous rocks and its implications for crustal growth and evolution
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其中少量锆石具有继承性锆石的核,而多数锆石则形成于高压麻粒岩相变质阶段。
Some zircons pre-served the inherited cores , while most zircons were formed at the high-pressure granulite-facies metamorphic stage .
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麻粒岩相退变质阶段,矿物组合主要为方解石+白云石+金云母+镁橄榄石+透辉石+钛铁矿+尖晶石±斜方辉石等;
The granulite facies retrograded stage with calcite + dolomite + diopside + ilmenite + phlogopite + spinel ± orthopyroxene ;
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综合各方面因素,认为麻粒岩相峰变质作用时代为印支期&海西晚期(220~270Ma左右),这是迄今为止秦岭地区所报道过的最年轻的麻粒岩地质体。
The granulite facies is Indosinian-late Hercynian ( ca. 220-270 Ma ), and this is the youngest granulite in the Qinling area .
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东南极拉斯曼丘陵麻粒岩相岩石中早期残留矿物组合的特征及其变质作用条件
Characteristics of the Early Remnant Mineral Associations in Granulite facies Rocks from the Larsemann Hills , East Antarctica and Their Metamorphic Conditions
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其围岩为遭受角门岩相&麻粒岩相区域变质和混合岩化的新太古代大别杂岩。
Their country rocks are the Neo - Archaean Dabie complex which has experienced regional metamorphism of amphibolite - granulite facies and migmatization .
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东南极拉斯曼丘陵出露的麻粒岩相泥质片麻岩和镁铁质麻粒岩经历了复杂的变形变质历史。
Granulite facies pelitic gneiss and mafic granulite outcropping in the Larsemann Hills , East Antarctica , underwent a complicated deformational metamorphic history .