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The expanding network of mineral chemistry throughout earth history reveals global shifts in crustal chemistry during the Proterozoic [PDF]

open access: yesScientific Reports, 2022
Earth surface redox conditions are intimately linked to the co-evolution of the geosphere and biosphere. Minerals provide a record of Earth’s evolving surface and interior chemistry in geologic time due to many different processes (e.g.
Eli K. Moore   +4 more
doaj   +2 more sources

Mineral chemistry and thermobarometry of Dorbeh diorite metamorphic aureole, south of Urmia [PDF]

open access: yesپترولوژی, 2023
Hercynite-rich spinel is a typical mineral of both quartz-bearing and quartz-free metapelitic rocks that form under low-pressure high-temperature conditions in the granulite facies (Sengupta et al., 1991) or upper-amphibolite facies of regional and ...
Monir Modjarrad, Hadi Omrani
doaj   +1 more source

Oxidative Phosphorus Chemistry Perturbed by Minerals [PDF]

open access: yesLife, 2022
Life is a complex, open chemical system that must be supported with energy inputs. If one fathoms how simple early life must have been, the complexity of modern-day life is staggering by comparison. A minimally complex system that could plausibly provide pyrophosphates for early life could be the oxidation of reduced phosphorus sources such as ...
Arthur Omran   +3 more
openaire   +4 more sources

Separate deposition of metals from highly concentrated solutions with granulated magnesia-silicate reagent

open access: yesVestnik MGTU, 2021
Multi-stage deposition of metals from a sulfate solution with a high concentration of iron, aluminum, copper, zinc, and nickel has been studied. The concentrations of the components correspond to the composition of the sub-basement waters of the Gaisky ...
Kremenetskaya I. P.   +4 more
doaj   +1 more source

Fluid inclusions, mineralogy and mineral chemistry of the porphyry-epithermal Sari Gunay epithermal ore deposit - the Kurdistan province

open access: yesJournal of Economic Geology, 2021
Introduction The Sari Gunay veining and breccia epithermal gold mineralization is situated between the Urumieh-Dokhtar magmatic belts and the Sanandaj-Sirjan metamorphic zone in central-NW Iran.
Behzad Mehrabi   +2 more
doaj   +1 more source

Magma storage conditions beneath Krakatau, Indonesia: insight from geochemistry and rock magnetism studies

open access: yesFrontiers in Earth Science, 2023
Understanding the evolution of magma storage conditions on volcanoes which have had more than one caldera-forming eruption (CFE) is important to know about past and present conditions, as a key to forecast future potential hazards.
Aditya Pratama   +19 more
doaj   +1 more source

A Data Driven Approach to Investigate the Chemical Variability of Clinopyroxenes From the 2014–2015 Holuhraun–Bárdarbunga Eruption (Iceland)

open access: yesFrontiers in Earth Science, 2020
The Holuhraun–Bárdarbunga (Iceland) eruption lasted approximately 6 months. Magma propagated laterally through a 40 km long dyke, while Bárdarbunga caldera was collapsing.
Luca Caricchi   +6 more
doaj   +1 more source

Mineral chemistry and geothermobarometry of metabasites of the Majerad igneous-metamorphic complex (SE of Shahrood)

open access: yesJournal of Economic Geology, 2020
Introduction Thermobarometric models based on the chemical equilibrium among coexisting mineral-mineral or mineral-melts pairs are useful tools widely used to estimate the P-T path and chemical evolution during igneous processes. The high sensitivity of
Marzieh Veiskarami   +3 more
doaj   +1 more source

Extraction of Rare Earth Metals by Solid-Phase Extractants from Phosphoric Acid Solution

open access: yesMetals, 2021
Nowadays, solving the problem of rational, integrated use of the mined raw materials, the transition to waste-free technologies for its processing is a crucial task.
Olga Cheremisina   +4 more
doaj   +1 more source

Bio-Reclamation of Strategic and Energy Critical Metals from Secondary Resources

open access: yesMetals, 2017
Metals with an average crustal abundance of <0.01 ppm, which are high in supply shortage due to soaring demand, can, under the excessive environmental risk and <1% recycling rate of their production, be termed as ‘critical’ in a limited geo ...
Sadia Ilyas   +4 more
doaj   +1 more source

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