超高压变质作用
- 网络ultrahigh pressure metamorphism;uhp;ultra-high-pressure metamorphism;uhpm
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超高压变质作用及大陆深俯冲&地球科学前沿述评
Ultrahigh pressure metamorphism and continental deep subduction : review on frontiers of geosciences
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作为榴辉岩相的早期共生矿物,它们的出现证明该区榴辉岩经历了超高压变质作用。
As the early coexisting mineral of eclogite facies , the occurrence of these mineral indicates that the eclogites in this district underwent ultrahigh pressure metamorphism .
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苏鲁造山带超高压变质作用及其P-T-t轨迹
Ultrahigh-pressure metamorphic P-T-t path of the Sulu orogenic belt , eastern central China
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其中陆块碰撞带岩石圈根可能深达200余千米或更深,俯冲的陆壳岩石曾深达约100km,并发生超高压变质作用。
The thickest part was more than 200 km , where the crust subducted 100 km or more and underwent UHP metamorphism .
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结合熊店榴辉岩样品具有类似于MORB的微量元素特征和εNd值(450Ma时为+6.56),说明该古生代年龄应代表古生代洋壳和岛弧物质俯冲经高压-超高压变质作用的产物。
Together with the MORB like trace element characteristics and ε Nd ( + 6.56 at 450 Ma ), the age suggests an early Paleozoic high and ultrahigh pressure metamorphic event probably related to the subduction of oceanic crust and associated arc materials .
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名义上无水矿物(NAMs)的结构水研究是认识超高压变质作用(UHPM)过程中流体活动规律的重要手段,并对板块汇聚边缘大陆动力学及水的深部地球循环有重要意义。
The research of structural water in nominally anhydrous minerals ( NAMs ) is significant for understand of the fluid flow activity in ultra-high pressure metamorphism , the geodynamics in convergent continental margins and the water recycling in mantle .
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浑圆状锆石核部SHRIMPU-Pb谐和年龄为620Ma和219Ma,这表明该石英闪长斑岩的母岩浆可能起源于经历了超高压变质作用改造的华南地块基底物质的部分熔融。
SHRIMP U-Pb concordia ages of the cores of rounded zircons are 620 and 219 Ma , suggesting that the parental magma for the quartz diorite porphyry may have been derived from partial melting of basement materials of the South China block that had been modified by ultrahigh-pressure metamorphism .
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假定超高压变质作用发生于228Ma,推算出闪长玢岩侵位前超高压变质岩的折返速率大致为3.63mm/a,闪长玢岩侵位后超高压变质岩的折返(剥蚀)速率大致为0.03mm/a。
Assuming that the UHP metamorphism occurred at 228 Ma , the exhumation ( uplift ) rate of UHP metamorphic rocks are estimated at approximately 3.63 mm / a before diorite-porphyrite intrusion and approximately 0.03 mm / a after diorite-porphyrite intrusion respectively .
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大别造山带加里东期高压超高压变质作用的确定及其意义
Determination and significance of Caledonian high-pressure and ultrahigh-pressure metamorphism in Dabie orogen
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陆-陆点碰撞与超高压变质作用
On Continent-Continent Point - Collision and Ultrahigh-Pressure Metamorphism
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它们经历了超高压变质作用和随后的角闪岩相退变质作用。
PHASE AND ITS SIGNIFICANCE These rocks have experienced UHP metamorphism and later amphibolite-facies retrogression .
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超高压变质作用压力模型的思考
A pressure model for ultrahigh-pressure metamorphism
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超高压变质作用浅谈填料密封
Packing seal ultra-high-pressure metamorphism
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高压超高压变质作用中的流体高压静电除尘实验研究
FLUIDS IN HIGH PRESSURE AND ULTRA HIGH PRESSURE METAMORPHISM Experimental study on control factors of influence on electrostatic precipitator efficiency
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目前,部分学者推断榴辉岩绿辉石中石英出溶体可作为超高压变质作用的标志。
At present , some of scholars suggest that the quartz exsolution in omphacite of eclogite is the evidence of UHP metamorphism .
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中央碰撞造山带中两期超高压变质作用来自含柯石英锆石的定年证据
Two Ultrahigh Pressure Metamorphic Events Recognized in the Central Orogenic Belt of China : Evidence from the U-Pb Dating of Coesite-bearing Zircons
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通过细致的矿物学研究,确认低密度的陆壳岩石可以被俯冲到地下200多公里深处,经历超高压变质作用;
Mineralogical evidences indicate that the continental crust rocks with low density could subduct down to depth of > 200 km and undergo UHPM ;
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大陆深俯冲以及由此引发的陆壳岩石超高压变质作用,是最近二十余年来固体地球科学领域的研究热点。
Continental deep subduction and related ultra-high pressure metamorphism has been the highlight field in the earth science research in the recent two decades .
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在高压超高压变质作用过程中所释放的流体对俯冲板块的演化起着重要作用,与岛弧岩浆活动有着直接联系。
Fluid released during the high pressure and ultrahigh pressure metamorphism plays an important role in the evolution of subducted slab and may connect directly with igneous activity in island arcs .
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高温超高压变质作用的研究与探讨地球内(深)部组成和结构相关,一直是地质学家关注的前沿问题。
The high temperature UHP metamorphism or metamorphism in the Earth deep interior is related to the study of mantle structure and materials , which will continue to be a frontier of the solid earth sciences .
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低温超高压变质作用与大洋板块的冷俯冲作用有关,其研究对于探讨俯冲带水流体的循环和地幔水流体的成因具有重要意义;
Because the low temperature UHP metamorphism was caused by cold oceanic plate subduction , studies of the low temperature UHP metamorphism is of great significance for the understanding of the H_2O cycle in subduction zones and the origin of fluids in the mantle .
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高压、超高压变质作用不是一个局部的孤立的地质现象,而是一个时空跨度大、范围广、影响构造观的重要科学问题。
The high pressure ( HP ) and ultrahigh pressure ( UHP ) metamorphism is not an occasional or local geological event in the geological history , its large range of distribution in space and time implies its importance in the forming of a current tectonic view in geoscience .
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金红石高-超高压变质成矿作用的几个问题
Some questions of high-pressure and super high pressure metamorphic ore formation of rutile
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南大别山超高压岩区变质作用的P-T-t研究&兼论花岗片麻岩与超高压变质岩的关系
Study on P-T-t of metamorphism in ultrahigh-pressure belt of Southern Dable Mountain : and discuss the relationship of granitic gneisses and UHP rocks
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超高压榴辉岩退变质作用对岩石磁化率的影响
Effects of Retrogression of Ultrahigh-Pressure Eclogites on Magnetic Susceptibility and Anisotropy
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苏北高压-超高压变质带中成矿作用桐柏-大别山高压超高压变质带
High-Pressure and Very High-Pressure Metamorphic Belt of Tongbai-Dabie Area , Central China
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大别超高压变质过程中流体作用的微量元素效应及其地球化学意义
Trace element effect of fluid-metasomatism during the HP-UHP metamorphism in the Dabie Mountains and its geochemical significance
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对超高压变质岩中O、C、H等同位素的研究进一步表明,超高压变质作用过程中并无大规模流体活动,大气水的O同位素成分可被带到地幔深处而不改变;
Fluids were not active and oxygen isotope composition of meteoric water could be preserved during UHPM process , as is evidenced by O , C , and H isotope data ;
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以柯石英榴辉岩为代表的超高压变质岩可能是具有元古代基底苏鲁微大陆块前缘俯冲到70~100km或更深的地方,遭受超高压变质作用形成的。
The ultrahigh-pressure metamorphic rocks , represented by coesite-bearing eclogite , may have been formed as the former edge of the Su-Lu micro-continent with Proterozoic basement had subducted to 70 ~ 100km or more deep and suffered ultrahigh-pressure metamorphism .