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Timing of Metamorphism and Provenance of the Metamorphic Basement of the Xiangshan Uranium Orefield, Jiangxi Province, China
basement metamorphic rock detrital zircon sedimentary provenance Precambrian Jiangnan orogenic belt Xiangshan
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2018/4/10
The origin, age and evolution of the Precambrian metamorphic basement of southern China provide useful insights into early crustal development. Here, we present new laser ablation–inductively coupled ...
Elemental transport upon hydration of basic schists during regional metamorphism: Geochemical evidence from the Sanbagawa metamorphic belt, Japan
mass transfer fluid flow hydration metamorphism Sanbagawa belt
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2017/4/10
Trace element and Sr–Nd–Pb isotopic compositions of basic schists in the Cretaceous Sanbagawa metamorphic belt, a
typical regional metamorphic belt in the circum-Pacific orogeny, have been investigat...
Nitrogen and N-isotope variation during low-grade metamorphism of the Taiwan mountain belt
nitrogen isotope devolatilization subduction zone Taiwan
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2017/8/9
To investigate factors affecting the evolution of nitrogen system in rocks during progressive metamorphism, unmetamorphosed to greenschist-facies pelitic samples were collected from both pelitic and (...
Alpine Metamorphism and Granitoid Magmatism in the Strandja Zone: New Data from the Sakar Unit, SE Bulgaria
Strandja zone Sakar unit Alpine tectonics syntectonic granitoids structural geology
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2009/7/7
The Strandja Zone is a pre-Cenomanian orogen consisting of three tectonic units: the Veleka, Strandja and Sakar units. The first two units display very low-grade Alpine metamorphism, whereas in the S...
Contact Metamorphism Around the Eocene Saraycık Granodiorite, Eastern Pontides, Turkey
contact metamorphism disequilibrium andalusite + melt stability P-T estimates Saraycı k granodiorite eastern Pontides Turkey
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2009/7/7
The Eocene Saraycık granodiorite, eastern Pontides, Turkey, is a small post-tectonic intrusive body (~11 km2), cross-cutting tectonically juxtaposed distinct metamorphic and non-metamorphic litho...
High-grade contact metamorphism of calcareous rocks from the Oslo Rift, Southern Norway
High-grade metamorphism calcareous rocks Oslo Rift Southern Norway
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2012/4/6
Shallow-levelplutonscausedextensivecontactmetamorphismofLowerPaleozoicshaleandcarbonatesequencesinthePermianOsloRift.A500mlongand100mwideshale-
limestonexenolithembeddedwithinmonzonitesbelongingtothe...
Diagenesis and Metamorphism of Clay Minerals in the Helvetic Alps of Eastern Switzerland
Clay mineralogy Diagenesis Helvetic Alps Incipient metamorphism Switzerland
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2011/12/1
Abstract: Helvetic sediments from the northern margin of the Alps in eastern Switzerland were studied by clay mineralogical methods. Based on illite “crystallinity” (Kübler index), the study area is d...
Evolution of compositional polarity and zoning in tourmaline during prograde metamorphism of sedimentary rocks in the Swiss Central Alps
Evolution polarity zoning tourmaline metamorphism sedimentary rocks Swiss Central Alps
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2012/4/6
Thecompositional evolution oftourmaline from diageneticto lower amphibolite-facies conditions wasinvestigated in two metasedimentary units (redbed and black shale for-mations)alongatraverse across the...
Constraint on the time scale of biotite-grade metamorphism during Acadian orogeny from a natural garnet-garnet diffusion couple
Constraint biotite-grade metamorphism Acadian orogeny garnet-garnet diffusion couple
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2012/4/6
Wehavedetermined the concentration profilesacross the interface ofanatural garnet-garnet couple in a biotite-grade rock from eastern Vermont.Thecouple consists ofa grossular-spessartine garnet that ha...
Evolution of Illite/Smectite from Early Diagenesis through Incipient Metamorphism in Sediments of the Basque-Cantabrian Basin
Basque Cantabrian Basin Diagenesis Illite Smectite
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2011/12/23
Abstract: Prograde evolution of illite/smectite occurring in an unusually-thick (8000 m) sequence of Mesozoic-Cenozoic sediments in the Basque-Cantabrian Basin, Spain, has been studied using XRD and T...
Modification of garnet by fluid infiltration during regional metamorphism in garnet through sillimanite-zone rocks, Dutchess County, New York
Modification garnet fluid infiltration metamorphism sillimanite-zone rocks
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2012/4/6
Metapelitic rocks from a progressive metamorphic sequence in Dutchess County, New York,record evidence for reaction between garnet and fluids associated withquartz (::!:pla-gioclase) veins and for net...
Three Zones for Illite Formation during Burial Diagenesis and Metamorphism
Age dating Burial diagenesis Gulf Coast basin Illite Illite/smectite Ostwald ripening Potassium/argon Punctuated diagenesis
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2011/12/1
Abstract: Reinterpretation of published data for shale cuttings from the Gulf of Mexico sedimentary basin identifies three reaction zones for illite formation with increasing depth for well CWRU6. In ...
Burial and Contact Metamorphism in the Mancos Shale
Bentonite Burial metamorphism Illite Interstratification Shale Smectite X-ray powder diffraction
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2012/2/8
Clay samples from shales and bentonites in the Mancos Shale (Cretaceous) and its stratigraphic equivalents in the southern Rocky Mountain and Colorado Plateau have been analyzed by X-ray powder diffra...