Search Results - "Changzhou Deng"
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Mercury loss and isotope fractionation during high-pressure and high-temperature processing of sediments: Implication for the behaviors of mercury during metamorphism
Published in Geochimica et cosmochimica acta (01-10-2022)“…Metamorphic rocks show much lower mercury (Hg) levels than sedimentary rocks, which may be due to the loss of Hg during high-pressure and high-temperature…”
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Mantle Hg isotopic heterogeneity and evidence of oceanic Hg recycling into the mantle
Published in Nature communications (17-02-2022)“…The geochemical cycle of mercury in Earth’s surface environment (atmosphere, hydrosphere, biosphere) has been extensively studied; however, the deep geological…”
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Mercury abundance and isotopic composition in granitic rocks: Implications for Hg cycling in the upper continental crust
Published in Geochimica et cosmochimica acta (15-11-2023)“…Mercury (Hg) is a highly volatile metal exhibiting both isotope mass-dependent (MDF, defined as δ202Hg) and mass-independent (MIF, expressed as Δ199Hg)…”
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Mercury isotopic compositions of the Precambrian rocks and implications for tracing mercury cycling in Earth's interior
Published in Precambrian research (01-06-2022)“…•Low Hg contents in metamorphic rocks support loss of Hg during metamorphism.•Similar Δ199Hg values between the equivalent un- and metamorphosed sedimentary…”
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The Emeishan large igneous province eruption triggered coastal perturbations and the Capitanian mass extinction: Insights from mercury in Permian bauxite beds
Published in Chemical geology (05-02-2023)“…The Capitanian mass extinction occurring at the mid-Capitanian to the Guadalupian–Lopingian boundary (GLB; ca. 262–257 Ma) was temporally coincident with the…”
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Mercury isotope constraints on the genesis of late Mesozoic Sb deposits in South China
Published in Science China. Earth sciences (01-02-2022)“…The late Mesozoic antimony (Sb) mineralization belt in South China hosts a large portion of the world’s Sb reserves. However, the source and mineralization…”
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Paleo‐Pacific Plate Subduction and Basement Mobilization Triggered Large‐Scale Formation of Mesozoic Gold Deposits in the Northern Margin of the North China Craton
Published in Geochemistry, geophysics, geosystems : G3 (01-07-2023)“…The northern margin of the North China Craton (NNCC) hosts Mesozoic gold deposits of significant economic importance. The metal sources of these gold systems…”
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Cryogenian interglacial greenhouse driven by enhanced volcanism: Evidence from mercury records
Published in Earth and planetary science letters (15-06-2021)“…•First report of Hg records at the onset of the Cryogenian inter-glacial interval.•Significant Hg/TOC spikes indicate extensive volcanic Hg emissions at the…”
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Ore-forming fluid evolution of a porphyry Cu-Mo deposit coexisting with porphyry Mo systems in a post-collisional setting, Xiaokelehe, NE China
Published in Ore geology reviews (01-10-2022)“…[Display omitted] •Four types of fluid inclusions were identified in quartz-sulfide veins of Xiaokelehe.•The initial fluid was released by magmas and…”
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Petrogenesis of the Neoproterozoic Xinlin ophiolite, northern Great Xing’an Range, northeastern China: Implications for the evolution of the northeastern branch of the Paleo-Asian Ocean
Published in Precambrian research (01-11-2020)“…•Xinlin ophiolitie indicates an ocean between Erguna and Xing’an blocks.•Zircon U–Pb age of 669 Ma for gabbro pegmatite constrains the age of Xinlin…”
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Linking the mercury biogeochemical cycle to the deep mercury cycle: A mercury isotope perspective
Published in Chemical geology (05-06-2024)“…Mercury (Hg) is a volatile, bioaccumulative, and toxic heavy metal, and its global distribution is controlled by the Hg biogeochemical cycle in the…”
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Volcanism‐Triggered Climatic Control on Late Cretaceous Oceans
Published in Geochemistry, geophysics, geosystems : G3 (01-04-2022)“…During the Late Cretaceous, Earth's climate oscillated between warm and cool states, and global oceans changed between anoxic and oxic conditions, resulting in…”
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Metal recycling tracked by mercury and helium isotopes in platinum–palladium nuggets from Córrego Bom Sucesso, Brazil
Published in Chemical geology (30-03-2022)“…The enigmatic botryoidal nuggets of platinum (Pt) and palladium (Pd) from Córrego Bom Sucesso in the southern Serra do Espinhaço, Minas Gerais, Brazil, are…”
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Early Cretaceous volcanic rocks in the Great Xing’an Range: Late effect of a flat-slab subduction
Published in Journal of geodynamics (01-02-2019)“…The tectonic setting and geodynamic processes of the large-scale Early Cretaceous volcanism in the Great Xing’an Range (GXAR) remain subjects of great debate…”
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Mercury isotopic compositions of iron oxide‑copper‑gold (IOCG) hydrothermal systems: Deep Hg cycling in intracontinental settings
Published in Chemical geology (20-12-2023)“…Mercury isotopes display unique mass-independent fractionation (MIF), typically expressed as Δ199Hg, which relates to photochemical reactions occurring at…”
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Crustal Mercury Addition Into the Giant Jinchuan Ni‐Cu Sulfide Deposit, China, and Its Geological Implications
Published in Geochemistry, geophysics, geosystems : G3 (01-05-2022)“…Mercury (Hg) isotopes have shown their power of tracing Hg pollution sources in ecosystems, but their potentials for petrogenetic tracing are yet to be…”
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Mercury isotopes as a useful tracer of magma sources: An example from the Daocheng-Cuojiaoma batholith, eastern Tibetan Plateau
Published in Chemical geology (20-09-2022)“…Magma mixing between mafic and felsic melts is a common magmatic process. Tracing the sources of different magma endmembers is often challenging using…”
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Chlorite mineralogy, geochemistry and exploration implications: A case study of the Xiaokelehe porphyry Cu-Mo deposit in NE China
Published in Ore geology reviews (01-01-2022)“…[Display omitted] •Abundant chlorite (Chl1–Chl3) occurs at Xiaokelehe PCD.•Formation temperatures of Chl1–Chl3 range from 209 to 314 °C.•Chl1–Chl3 compositions…”
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Petrogenesis of Late Carboniferous A-type granites and Early Cretaceous adakites of the Songnen Block, NE China: Implications for the geodynamic evolution of the Paleo-Asian and Paleo-Pacific oceans
Published in Lithos (01-08-2020)“…The petrogenesis of Late Carboniferous A-type granites and Early Cretaceous adakites in NE China offers new insights into the geodynamic evolution of the…”
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