Resolving the role of carbonaceous material in gold precipitation in metasediment-hosted orogenic gold deposits [PDF]
Geology, 2017 Carbonaceous material (CM) is commonly associated with gold and sulfides in metasediment-hosted orogenic gold deposits. The role of CM in Au deposition is controversial; CM has been proposed to contribute to gold deposition by reducing Au bisulfide ...
Si-Yu Hu, Katy Evans, D Craw
exaly +3 more sources
Tracking Deep Sediment Underplating in a Fossil Subduction Margin: Implications for Interface Rheology and Mass and Volatile Recycling [PDF]
Geochemistry, Geophysics, Geosystems, 2021 The architecture and mechanical properties of the subduction interface impact large‐scale subduction processes, including mass and volatile recycling, upper‐plate orogenesis, and seismic behavior.
C. M. Tewksbury‐Christle +2 more
doaj +3 more sources
A rapid transition from subduction to Barrovian metamorphism: geochronology of mafic–ultramafic relicts of oceanic crust in the Central Alps, Switzerland [PDF]
Swiss Journal of GeosciencesRelicts of subducted oceanic lithosphere provide key information for the tectonic reconstructions of convergent margins. In the Central Alps, such relicts occur as isolated mafic–ultramafic lenses within the migmatites of the southern Adula nappe and ...
Kim Lemke +2 more
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Minerals, 2022 This study contributes to our understanding of the evolution of Halılar Cu-Pb (±Zn) mineralization (NW Turkey) based on mineralogical and geochemical results and sulfur isotope data.
Demet Kiran Yildirim
core +2 more sources
Genesis and exhumation of the Kongur-Muztaghata and Maeryang gneiss domes in NE Pamir since the Mesozoic [PDF]
Solid Earth Sciences, 2023 The Kongur-Muztaghata-Maeryang terrane in NE Pamir is considered to be the western extension of the Songpan-Ganze terrane located in the northern Tibetan Plateau. The Kongur-Muztaghata gneiss dome (KMGD) is situated in the north while the Maeryang gneiss
Zhiqin Xu +8 more
doaj +2 more sources
Large megathrust earthquakes in cold mantle wedge corners under lawsonite blueschist facies [PDF]
Nature CommunicationsGiant megathrust earthquakes typically occur above the upper-plate Moho or the 350°C isotherm in warm subduction zones. However, large earthquakes also occur within the mantle wedge corner at 35-55 km depth at cold subduction zones, such as the Kermadec,
Hao Zhang +5 more
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Clastic Metasediment-Hosted Vein Silver-Lead-Zinc
, 1995 G Beaudoin, D F Sangster
exaly +3 more sources
Journal of earth sciences, 2016 The Wuliangshan Group occurs to the east of the Lancang giant igneous zone in SW Yunnan, and is mainly composed of low-grade metamorphosed sedimentary rocks.
Zhang, Yuzhi +2 more
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Communications Earth & EnvironmentGraphite found along contiguous horizons in the metamorphosed detrital sediments from the ≥ 3.7 Ga Isua Supracrustal Belt in Southwest Greenland may represent the oldest remains of life on Earth.
Magnus A. R. Harding +6 more
doaj +2 more sources
The evolution of the Sesia Zone (Western Alps) from Carboniferous to Cretaceous: insights from zircon and allanite geochronology [PDF]
Swiss Journal of Geosciences, 2020 Microscale dating of distinct domains in minerals that contain relics of multiple metamorphic events is a key tool to characterize the polyphase evolution of complex metamorphic terranes. Zircon and allanite from five metasediments and five metaintrusive
Alice Vho +3 more
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