Three-Dimensional Evolution of the Early Paleozoic Western Laurentian Margin: New Insights From Detrital Zircon U-Pb Geochronology and Hf Isotope Geochemistry of the Harmony Formation of Nevada
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DOI: 10.1002/2017tc004520
Abstract: Arizona LaserChron National Science Foundation (NSF) grant [EAR-1338583]; NSF [EAR-9116000, EAR-9416933, EAR-0510915]; Raytheon Corporation Student Veterans Scholarship; Rocky Mountain Association of Geologists Veterans Memorial Scholarship; Nevada Petroleum and Geothermal Society; Graduate Student Association of the… read more here.
Keywords: three dimensional; early paleozoic; dimensional evolution; evolution early ... See more keywords
Geology, geochemistry, and geochronology of the East Bay gold trend, Red Lake, Ontario, Canada
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DOI: 10.1007/s00126-017-0730-z
Abstract: The Red Lake greenstone belt is situated in northwestern Ontario within the Uchi Subprovince, Superior Province. Most gold deposits therein are associated with major deformation corridors; the east-west oriented “Mine trend” hosts most of the… read more here.
Keywords: trend; geology; geochemistry; gold ... See more keywords
The polymetallic magmatic-hydrothermal Xiangdong and Dalong systems in the W–Sn–Cu–Pb–Zn–Ag Dengfuxian orefield, SE China: constraints from geology, fluid inclusions, H–O–S–Pb isotopes, and sphalerite Rb–Sr geochronology
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DOI: 10.1007/s00126-019-00863-x
Abstract: Vein-type deposits, including the Xiangdong W–Sn and Dalong Pb–Zn deposits, occur in or near the Dengfuxian composite granite pluton, comprising predominantly Triassic and minor Jurassic intrusions. Liquid-rich NaCl-aqueous inclusions, vapor-rich NaCl-aqueous inclusions, liquid-rich CaCl2-NaCl-aqueous inclusions,… read more here.
Keywords: xiangdong dalong; nacl aqueous; geology; ore forming ... See more keywords
Multi-mineral geochronology: insights into crustal behaviour during exhumation of an orogenic root
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DOI: 10.1007/s00410-017-1331-7
Abstract: Under rare conditions, reworked cratons and their margins preserve the orogenic roots of ancient mountain-building events. However, based on the preservation of high-temperature (~ 800 °C), middle and lower crustal metamorphic assemblages, present day exposure of these… read more here.
Keywords: geochronology insights; insights crustal; crustal behaviour; multi mineral ... See more keywords
From Jurassic rifting to Cretaceous subduction in NW Iranian Azerbaijan: geochronological and geochemical signals from granitoids
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DOI: 10.1007/s00410-018-1532-8
Abstract: Previous interpretations of a Jurassic subduction in Iran were based on trace element classification diagrams for granitoids, but their reliability is questionable, underscored by modern examples of continental break-up zones such as the Baja California.… read more here.
Keywords: jurassic rifting; cretaceous subduction; iranian azerbaijan; subduction ... See more keywords
Geochronology and geochemistry of the Niujuanzi ophiolitic mélange, Gansu Province, NW China: implications for tectonic evolution of the Beishan Orogenic Collage
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DOI: 10.1007/s00531-017-1489-2
Abstract: The Niujuanzi ophiolitic mélange (NOM), located in the Beishan Orogenic Collage, marks the termination between the Huaniushan arc and Mingshui-Hanshan Massifs. The NOM is mainly composed of gabbros, diabases, plagiogranites, basalts, and greywacke. Two gabbros… read more here.
Keywords: niujuanzi ophiolitic; ophiolitic lange; beishan orogenic; geochemistry ... See more keywords
U–Pb zircon geochronology and phase equilibria modelling of HP-LT rocks in the Ossa-Morena Zone, Portugal
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DOI: 10.1007/s00531-020-01921-w
Abstract: The Ossa-Morena Zone (OMZ) has a complex geological history including both Cadomian and Variscan orogenic events. Therefore, the OMZ plays an important role in understanding the geodynamic evolution of Iberia. However, the P–T–t evolution of… read more here.
Keywords: phase equilibria; equilibria modelling; ossa morena; geochronology ... See more keywords
U-Pb Isotope Geochronology of Syntectonic Granites from Hainan Island, South China: Constraints on Tectonic Evolution of the Eastern Paleo-Tethys Ocean
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DOI: 10.1007/s11802-020-4352-1
Abstract: Since the recognition of the Indosinian orogeny in northern Vietnam, Triassic orogens have been widely identified around the western and southwestern boundaries of the South China block. The paleo-Tethys sutures stretch from west to southeast,… read more here.
Keywords: paleo tethys; hainan island; geochronology;
EPMA monazite geochronology of the granulites from Daltonganj, eastern India and its correlation with the Rodinia supercontinent
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DOI: 10.1007/s12040-019-1254-y
Abstract: We report the monazite dates of the granulites from Daltonganj (Palamau), Chhotanagpur granite–gneiss complex (CGGC) which covers the significant part of the granulite blocks in central India by using an electron micro probe analyser dating.… read more here.
Keywords: granulites daltonganj; cggc; rodinia supercontinent; geochronology ... See more keywords
Petrology and LA-ICP-MS zircon geochronology for Late Cretaceous felsic dikes and intermediate volcanic rocks hosted in Mersin ophiolite, South Turkey and its implications
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DOI: 10.1007/s12303-020-0020-0
Abstract: LA-ICP-MS U-Pb geochronology of zircons, whole-rock (main, trace, and REE) geochemistry, and mineral chemistry (feldspars) are constrained for felsic dikes and intermediate volcanic rocks of the Mersin ophiolite in the Inner Tauride Suture Zone (Southern… read more here.
Keywords: petrology; chemistry; geochemistry; volcanic rocks ... See more keywords
Geochronology and geochemistry of Ediacaran volcanic rocks of the Tighardine ore deposit formation (western High Atlas, Morocco)
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DOI: 10.1007/s12517-017-3375-4
Abstract: The study performed on the host rocks of the Tighardine deposit allows proposing a new lithostratigraphic succession, mainly constituted of three volcanic and volcano–sedimentary units and dolomitic bed and lenses. Volcanic rocks consist mainly of… read more here.
Keywords: rocks tighardine; geochemistry; volcanic rocks; geochronology ... See more keywords