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Significant boron isotopic fractionation in the magmatic evolution of Himalayan leucogranite recorded in multiple generations of tourmaline

期刊: CHEMICAL GEOLOGY, 2021; 571 ()

The late-stage evolution of leucogranite magmas and related magmatic-hydrothermal processes which could lead to rare-metal mineralization are still po......

Phosphate uptake by calcite: Constraints of concentration and pH on the formation of calcium phosphate precipitates

期刊: CHEMICAL GEOLOGY, 2021; 579 ()

The uptake of phosphate by carbonates plays an important role in controlling the fate and transport of phosphorus in soil, but the mechanisms are not ......

The chromium isotope fractionation factor in seawater

期刊: CHEMICAL GEOLOGY, 2021; 579 ()

The chromium (Cr) stable isotope system is an increasingly used redox proxy for studying the oxygenation history of Earth's ocean-atmosphere system, b......

Chemical and boron isotopic compositions of tourmaline at the Baiyanghe Be-U deposit, northwest China: Implications for Be-U mineralization

期刊: CHEMICAL GEOLOGY, 2021; 569 ()

Tourmaline records the physical and chemical conditions of the crystallization environment and preserves the information through younger magmatic-hydr......

Molybdenum isotopic evidence for anoxic marine conditions during the end-Permian mass extinction

期刊: CHEMICAL GEOLOGY, 2021; 575 ()

The end-Permian mass extinction was the most severe biotic crisis of the Phanerozoic. Oceanic anoxia has long been considered one of the main drivers ......

Multiple sulfur isotopes in post-Archean deposits as a potential tracer for fluid mixing processes: An example from an iron oxide-copper-gold (IOCG) deposit in southern Peru

期刊: CHEMICAL GEOLOGY, 2021; 575 ()

Sulfur has multiple stable isotopes (32S, 33S, 34S, and 36S), but little research has been conducted to investigate the information that low abundance......

Erroneous determination of the duration of metamorphism from analysis of overlapping pre-sputtered areas during SIMS U?Pb dating of zircon

期刊: CHEMICAL GEOLOGY, 2021; 573 ()

The duration of geological events has distinct implications for geological processes. Secondary ion mass spectrometry (SIMS) U?Pb dating of inherited ......

Behavior of the Mo, Tl, and U isotope systems during differentiation in the Kilauea Iki lava lake

期刊: CHEMICAL GEOLOGY, 2021; 574 ()

Stable molybdenum (Mo), thallium (Tl), and uranium (U) isotope ratios were determined in a suite of samples from the 1959 Kilauea eruption and from Ki......

Regulation of particulate inorganic carbon by phytoplankton in hydropower reservoirs: Evidence from stable carbon isotope analysis

期刊: CHEMICAL GEOLOGY, 2021; 579 ()

Particulate inorganic carbon (PIC) is one of the most important components of carbon cycle in hydropower reservoirs. However, the processes of product......

Formation of giant gold provinces by subduction-induced reactivation of fossilized, metasomatized continental lithospheric mantle in the North China Craton

期刊: CHEMICAL GEOLOGY, 2021; 580 ()

Subcontinental lithospheric mantle (SCLM) metasomatized by recycled components from oceanic subduction zone constitutes a fertile source for some of w......

An evaluation of cleaning methods, preservation and specimen stages on trace elements in modern shallow marine ostracod shells of Sinocytheridea impressa and their implications as proxies

期刊: CHEMICAL GEOLOGY, 2021; 579 ()

Trace elements of marine shells are important tools for reconstructing past ocean conditions, which are usually obtained through empirical calibration......

Tracing seawater- and terrestrial-sourced REE signatures in detritally contaminated, diagenetically altered carbonate rocks

期刊: CHEMICAL GEOLOGY, 2021; 570 ()

As two typical non-skeletal carbonates, ooids and calcified microbial structures have a potential for use in paleoseawater rare earth element (REE) an......

Determination of regolith production rates from U-238-U-234-Th-230 disequilibrium in deep weathering profiles (Longnan, SE China)

期刊: CHEMICAL GEOLOGY, 2021; 574 ()

The present study seeks to evaluate the application of the U-238-U-234-Th-230 radioactive disequilibrium methodology for the determination of the rego......

Reappraisal of the applicability of MK-1 apatite as a reference standard for (U-Th)/He geochronology

期刊: CHEMICAL GEOLOGY, 2021; 575 ()

The (U-Th)/He dating technique is widely used in studying the shallow-crustal geological processes including exhumation of orogenic belts, surface wea......

Sulfur and oxygen isotopic compositions of carbonate associated sulfate (CAS) of Cambrian ribbon rocks: Implications for the constraints on using CAS to reconstruct seawater sulfate sulfur isotopic compositions

期刊: CHEMICAL GEOLOGY, 2021; 580 ()

Carbonate associated sulfate (CAS) is widely used to reconstruct the deep time seawater sulfate sulfur isotopic composition (delta S-34(sw)) and marin......

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