Results 71 to 80 of about 7,353 (249)
Frontiers in Earth Science, 2016 Sulfur isotope signatures provide key information for the study of microbial activity in modern systems and the evolution of the Earth surface redox system.
Hannah Sophia Weber +3 more
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Geological Features and C-H-O-S-Pb Isotopes at the Zhazixi Sb-W Deposit
Chemical Engineering Transactions, 2017 The Zhazixi Sb–W deposit in the Xuefeng arc metallogenic belt, South China, is one of the Sb deposits in Precambrian strata. The sources of the ore-forming fluid and the metallogenic material, as the bone of contention in geochemical field, are ...
Liangliang Jia +3 more
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Sulfur isotope heterogeneity in Martian shergottites reveals early atmosphere - mantle exchange
Communications Earth & EnvironmentThe study of sulfur isotopes on Mars provides crucial insights into the planet’s formation, differentiation, and volatile evolution. Primordial sulfur isotope compositions help distinguish Martian sulfur sources, including core-mantle interactions ...
Kiran Patil +11 more
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Integrated Environmental Assessment and Management, EarlyView., 2023 Abstract In the Lake Koocanusa‐Kootenai River system (Montana, USA and British Columbia, Canada), selenium (Se) contamination has become an international concern and is suspected to contribute to the observed burbot (Lota lota) population collapse. Due to our limited ability to sample burbot in Lake Koocanusa for monitoring studies, we used a reference
Stephanie D. Graves +6 more
wiley +1 more source
Geofluids, 2017 Formation water chemistry, sulfate sulfur isotopes, and associated H2S contents and sulfur isotopes were measured from the Ordovician in Tazhong area, Tarim Basin.
Hongxia Li +4 more
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Strong local, not global, controls on marine pyrite sulfur isotopes. [PDF]
Sci Adv, 2021 Pasquier V +3 more
europepmc +1 more source
Sulfur isotopes of hydrothermal vent fossils and insights into microbial sulfur cycling within a lower Paleozoic (Ordovician-early Silurian) vent community. [PDF]
Geobiology, 2022 Georgieva MN +7 more
europepmc +1 more source
Isotopic insights into microbial sulfur cycling in oil reservoirs
Frontiers in Microbiology, 2014 Microbial sulfate reduction in oil reservoirs (biosouring) is often associated with secondary oil production where seawater containing high sulfate concentrations (~28 mM) is injected into a reservoir to maintain pressure and displace oil.
Christopher G Hubbard +8 more
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Uncaging Iridium(III) Complexes for Combined Photodynamic and Photoactivated Chemotherapy
Angewandte Chemie International Edition, EarlyView.Light‐activatable iridium(III) anticancer prodrugs demonstrate how chalcogen coordination controls photoinduced therapeutic activity. Upon visible‐light irradiation, sulfur‐ and selenium‐based caging ligands undergo distinct oxygen‐dependent photoreactions that trigger ligand release and singlet oxygen generation, enabling combined photoactivated ...
Victoria V. L. Müller +5 more
wiley +1 more source
Two solutions - multipulsations model of genesis of the silesian-cracovian Zn-Pb ore deposits
Rudarsko-geološko-naftni Zbornik, 1989 Silesian-Cracovian Zn-Pb ore deposits are hosted in Mesozoic cover and are located near main dislocations in the area between Upper Silesian Coal Basin and buried Caledonian mountains, A screen of Keuper clayely beds controls mixing of surficial waters ...
Czeslaw Harańczyk
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