Microchemical and sulfur isotope constraints on the magmatic and hydrothermal evolution of the Black Swan Succession, Western Australia
Sign Up to like & getrecommendations! Published in 2019 at "Mineralium Deposita"
DOI: 10.1007/s00126-019-00891-7
Abstract: The Black Swan Succession consists of an Archean bimodal dacite-komatiite association largely dominated by ultramafic cumulates hosting a number of massive and disseminated magmatic sulfide orebodies. Although it was affected by multiple alteration events, the… read more here.
Keywords: talc carbonate; black swan; swan succession; sulfur ... See more keywords
Regional variations of sulfur isotope compositions for metallic deposits in the Taebaeksan Mineralized District, South Korea
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DOI: 10.1007/s12303-017-0057-x
Abstract: Metallic ore deposits of various genetic types are distributed in the Taebaeksan mineralized district in South Korea. The different basements or host rocks for these deposits vary across the northern and southern regions of the… read more here.
Keywords: taebaeksan mineralized; isotope compositions; mineralized district; sulfur isotope ... See more keywords
Identifying global vs. basinal controls on Paleoproterozoic organic carbon and sulfur isotope records
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DOI: 10.1016/j.earscirev.2020.103230
Abstract: Abstract Paleoproterozoic sedimentary successions are important archives of the redox evolution of Earth’s atmosphere and oceans. Efforts to unravel the dynamics of our planet’s early oxygenation from this archive rely on various geochemical proxies, including… read more here.
Keywords: isotope records; carbon sulfur; sulfur isotope; carbon ... See more keywords
Hydrothermally induced 34S enrichment in pyrite as an alternative explanation of the Late-Devonian sulfur isotope excursion in South China
Sign Up to like & getrecommendations! Published in 2020 at "Geochimica et Cosmochimica Acta"
DOI: 10.1016/j.gca.2020.05.017
Abstract: Abstract Several Late Devonian sedimentary successions host pyrite with highly positive sulfur isotope values (δ34Spyrite). These anomalous values have been linked to marine anoxia, low sulfate concentrations in seawater, or aerobic re-oxidation of dissolved sulfide… read more here.
Keywords: south china; sulfate; late devonian; sulfur ... See more keywords
Multiple sulfur isotope records at the end-Guadalupian (Permian) at Chaotian, China: Implications for a role of bioturbation in the Phanerozoic sulfur cycle
Sign Up to like & getrecommendations! Published in 2017 at "Journal of Asian Earth Sciences"
DOI: 10.1016/j.jseaes.2016.12.009
Abstract: Abstract A recent study on quadruple sulfur isotopes (32S, 33S, 34S, and 36S) of sedimentary pyrite suggested that the end-Guadalupian extinction was caused by shoaling of the sulfidic deep-water. This scenario is based on the… read more here.
Keywords: end guadalupian; bioturbation; sulfur isotope; deep water ... See more keywords
Micro-scale sulfur isotope and chemical variations in sphalerite from the Bleiberg Pb-Zn deposit, Eastern Alps, Austria
Sign Up to like & getrecommendations! Published in 2017 at "Ore Geology Reviews"
DOI: 10.1016/j.oregeorev.2017.10.020
Abstract: Abstract The Bleiberg Pb-Zn deposit in the Drau Range is the type locality of Alpine-type carbonate-hosted Pb-Zn deposits. Its origin has been the subject of on-going controversy with two contrasting genetic models proposed: (1) the… read more here.
Keywords: sample; sulfur; sulfur isotope; bleiberg deposit ... See more keywords
Compound-Specific Sulfur Isotope Analysis of Petroleum Gases.
Sign Up to like & getrecommendations! Published in 2017 at "Analytical chemistry"
DOI: 10.1021/acs.analchem.6b05131
Abstract: We describe a simple, sensitive, and robust method for sulfur isotope ratio (34S/32S) analysis of ppm-level organic sulfur compounds (OSCs) in the presence of percent-level H2S. The method uses a gas chromatograph (GC) coupled with… read more here.
Keywords: isotope; analysis; gas; method ... See more keywords
An evaluation on the extraction capability of anion exchange membranes for high-precision sulfur isotope measurement by multiple-collector inductively coupled plasma mass spectrometry
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DOI: 10.1039/c9ra04121d
Abstract: Anion exchange membranes (AEMs) are adept at extracting sulfate for sulfur isotope analyses by multiple-collector inductively coupled plasma mass spectrometry (MC-ICP-MS) from natural samples typically with low sulfate concentrations. read more here.
Keywords: anion exchange; multiple collector; sulfur isotope; collector inductively ... See more keywords
Five-S-isotope evidence of two distinct mass-independent sulfur isotope effects and implications for the modern and Archean atmospheres
Sign Up to like & getrecommendations! Published in 2018 at "Proceedings of the National Academy of Sciences of the United States of America"
DOI: 10.1073/pnas.1803420115
Abstract: Significance Anomalous sulfur isotopic compositions preserved in sedimentary rocks older than ∼2.5 billion years have been widely interpreted as the products of UV photolysis of sulfur dioxide in an anoxic atmosphere and used to track… read more here.
Keywords: evidence; mass independent; sulfur; sulfur isotope ... See more keywords
Revisiting Ediacaran sulfur isotope chemostratigraphy with in situ nanoSIMS analysis of sedimentary pyrite
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DOI: 10.1130/g48262.1
Abstract: Reconstructions of ancient sulfur cycling and redox conditions commonly rely on sulfur isotope measurements of sedimentary rocks and minerals. Ediacaran strata (635–541 Ma) record a large range of values in bulk sulfur isotope difference (Δ34S)… read more here.
Keywords: situ; sulfur isotope; sedimentary pyrite; bulk 34spy ... See more keywords
Interpreting multiple sulfur isotope signals in modern anoxic sediments using a full diagenetic model (California-Mexico margin: Alfonso Basin)
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DOI: 10.2475/05.2018.02
Abstract: Recent studies targeting the metabolic, physiological, and biochemical controls of sulfur isotope fractionation in microbial systems have drawn linkages between results from culture experiments and the sulfur isotope signatures observed in natural environments. Several of… read more here.
Keywords: minor isotope; isotope; model; sulfur isotope ... See more keywords