Academic literature on the topic 'Sulphur and Callcium isotopes'

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Journal articles on the topic "Sulphur and Callcium isotopes":

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McArdle, Nicola C., and Peter S. Liss. "Isotopes and atmospheric sulphur." Atmospheric Environment 29, no. 18 (September 1995): 2553–56. http://dx.doi.org/10.1016/1352-2310(95)00188-5.

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Strauss, Harald. "Sulphur isotopes and the early Archaean sulphur cycle." Precambrian Research 126, no. 3-4 (October 2003): 349–61. http://dx.doi.org/10.1016/s0301-9268(03)00104-9.

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TRUST, B. A., and B. FRY. "Stable sulphur isotopes in plants: a review." Plant, Cell and Environment 15, no. 9 (December 1992): 1105–10. http://dx.doi.org/10.1111/j.1365-3040.1992.tb01661.x.

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Paytan, Adina, Ellen T. Gray, Zhongwu Ma, Andrea Erhardt, and Kristina Faul. "Application of sulphur isotopes for stratigraphic correlation." Isotopes in Environmental and Health Studies 48, no. 1 (March 2012): 195–206. http://dx.doi.org/10.1080/10256016.2011.625423.

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Montinaro, A., and H. Strauss. "Sulphur tales from the early Archean world." International Journal of Astrobiology 15, no. 3 (April 4, 2016): 177–85. http://dx.doi.org/10.1017/s1473550415000531.

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AbstractSedimentary and magmatic rocks and their distinct sulphur isotopic signatures indicate the sources and processes of sulphur cycling, in particular through the analysis of all four stable sulphur isotopes (32S, 33S, 34S and 36S). Research over the past 15 years has substantially advanced our understanding of sulphur cycling on the early Earth, most notably through the discovery of mass-independently fractionated sulphur isotopic signatures. A strong atmospheric influence on the early Archean global sulphur cycle is apparent, much in contrast to the modern world. Diverse microbially driven sulphur cycling is clearly discernible, but its importance for Earth surface environments remains to be quantified.
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Farquhar, James, Joel Savarino, Terri L. Jackson, and Mark H. Thiemens. "Evidence of atmospheric sulphur in the martian regolith from sulphur isotopes in meteorites." Nature 404, no. 6773 (March 2000): 50–52. http://dx.doi.org/10.1038/35003517.

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Suomijärvi, T., J. H. Kelley, S. E. Hirzebruch, A. Azhari, D. Bazin, Y. Blumenfeld, J. A. Brown, et al. "Inelastic proton scattering on Neutron-Rich sulphur isotopes." Acta Physica Hungarica A) Heavy Ion Physics 6, no. 1-4 (October 1997): 177–87. http://dx.doi.org/10.1007/bf03158495.

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Humire, P. K., V. Thiel, C. Henkel, A. Belloche, J. C. Loison, T. Pillai, D. Riquelme, et al. "Sulphur and carbon isotopes towards Galactic centre clouds." Astronomy & Astrophysics 642 (October 2020): A222. http://dx.doi.org/10.1051/0004-6361/202038216.

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Context. Measuring isotopic ratios is a sensitive technique used to obtain information on stellar nucleosynthesis and chemical evolution. Aims. We present measurements of the carbon and sulphur abundances in the interstellar medium of the central region of our Galaxy. The selected targets are the +50 km s−1 Cloud and several line-of-sight clouds towards Sgr B2(N). Methods. Towards the +50 km s−1 Cloud, we observed the J = 2–1 rotational transitions of 12C32S, 12C34S, 13C32S, 12C33S, and 13C34S, and the J = 3–2 transitions of 12C32S and 12C34S with the IRAM-30 m telescope, as well as the J = 6–5 transitions of 12C34S and 13C32S with the APEX 12 m telescope, all in emission. The J = 2–1 rotational transitions of 12C32S, 12C34S, 13C32S, and 13C34S were observed with ALMA in the envelope of Sgr B2(N), with those of 12C32S and 12C34S also observed in the line-of-sight clouds towards Sgr B2(N), all in absorption. Results. In the +50 km s−1 Cloud we derive a 12C/13C isotopic ratio of 22.1−2.4+3.3, that leads, with the measured 13C32S/12C34S line intensity ratio, to a 32S/34S ratio of 16.3−2.4+3.0. We also derive the 32S/34S isotopic ratio more directly from the two isotopologues 13C32S and 13C34S, which leads to an independent 32S/34S estimation of 16.3−1.7+2.1 and 17.9 ± 5.0 for the +50 km s−1 Cloud and Sgr B2(N), respectively. We also obtain a 34S/33S ratio of 4.3 ± 0.2 in the +50 km s−1 Cloud. Conclusions. Previous studies observed a decreasing trend in the 32S/34S isotopic ratios when approaching the Galactic centre. Our result indicates a termination of this tendency at least at a galactocentric distance of 130−30+60 pc. This is at variance with findings based on 12C/13C, 14N/15N, and 18O/17O isotope ratios, where the above-mentioned trend is observed to continue right to the central molecular zone. This can indicate a drop in the production of massive stars at the Galactic centre, in the same line as recent metallicity gradient ([Fe/H]) studies, and opens the work towards a comparison with Galactic and stellar evolution models.
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Soderberg, Keir, Joh Henschel, Robert J. Swap, and Stephen A. Macko. "Sulphur isotopes in the central Namib Desert ecosystem." Transactions of the Royal Society of South Africa 69, no. 3 (September 2, 2014): 217–23. http://dx.doi.org/10.1080/0035919x.2014.976778.

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Wadleigh, Moire A. "Lichens and atmospheric sulphur: what stable isotopes reveal." Environmental Pollution 126, no. 3 (December 2003): 345–51. http://dx.doi.org/10.1016/s0269-7491(03)00247-1.

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Dissertations / Theses on the topic "Sulphur and Callcium isotopes":

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Jouini, Arbia. "Perturbations biogéochimiques à la limite Crétacé-Paléogène : apport des isotopes du Soufre et du Calcium." Electronic Thesis or Diss., Université de Lorraine, 2023. http://www.theses.fr/2023LORR0065.

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La limite Crétacé-Paléogène (KPg, -66 Ma) est associée à l'une des plus grandes perturbations environnementale de l'histoire récente de la Terre. Cette crise, liée à la mise en place d'une province magmatique de premier ordre (traps du Deccan) et/ou à un impact météoritique (formation du cratère de Chixculub) se traduit entre autres par une perturbation profonde de la bioproduction carbonatée océanique. Si de nombreuses questions subsistent quant à l'importance relative de l'impact et du volcanisme dans les perturbations de la limite KPg, la modification de la composition chimique du système océan-atmosphère par l'émission d'énormes quantités d'acide sulfurique et carbonique d'origines volcaniques a probablement joué un rôle clé dans la crise Crétacé-PaléogèneDurant ce projet de thèse j'ai réalisé des enregistrements isotopiques à haute résolution des isotopes stables du soufre et du calcium à travers la transitons Crétacé-Paléogène. Ces enregistrements sont basés sur des échantillons monospécifiques de foraminifères planctoniques et benthiques issue du pacifique équatorial.Les enregistrements de δ44/40Ca benthiques et planctoniques avant et après la limite K-Pg nous ont permis de mettre en évidence une succession d'épisodes de changements de l'alcalinité océanique liés à l'augmentation de l'altération continentale et à la crise de biocalcification causée par les émissions de CO2 du volcanisme du Deccan. La compensation des carbonates par la dissolution des sédiments carbonatés, la réduction de la biocalcification et/ou l'augmentation de l'altération continentale ont dû se produire pour compenser l'excès de CO2. Par conséquence, cela a entraîné des changements rapides dans la chimie des carbonates océaniques, en combinaison avec une réduction de l'exportation de l'alcalinité de surface en réponse à la crise de biominéralisation planctonique du Paléogène précoce.L'examen de la perturbation du cycle du soufre quant lui, soutient plutôt l'idée que l'extinction de masse à travers la transition K-Pg n'est pas être associée à une expansion globale de conditions anoxique, contrairement aux différents événements d'extinction de masse du Phanérozoïque, où il existe des preuves multiples du de développement de condition anoxique associé aux perturbations du cycle du carbone. Ces conclusions est en accord avec les observations micropaléontologiques qui ne montrent pas d'extinction de masse des foraminifères benthiquesCette approche géochimique multiproxies a l'avantage de permettre donc une évaluation plus pousser de certains paramètres clés tel que la chimie des carbonates et l'anoxie océanique à travers la transition Crétacé -Paléogène permettant ainsi d'avoir un schéma global plus clair des perturbations biogéochimiques autour de cette période
The Cretaceous-Paleogene boundary (KPg, -66 Ma) is associated to one of the deepest biogeochemical cycle disruptions in Earth's recent history. The events associated to the KPg boundary include one of the strongest known oceanic calcareous bioproduction crisis and are coeval with a bolid impact (that formed the Chixculub crater) and the emplacement of a Large Igneous Province (Deccan traps). Many studies investigated the mechanism(s) triggering the environmental perturbations and many questions remain unanswered regarding the relative contribution of the volcanic event and the impact on the KPg crisis. Yet, modification of the ocean-atmosphere system composition through massive input of sulfuric and carbonic acid very likely played a key, underconstrained, role.During this thesis project, I conducted high-resolution stable sulphur and calcium isotope records across the Cretaceous-Paleogene transition. These records are based on monospecific samples of planktonic and benthic foraminifera from the equatorial Pacific.The benthic and planktonic δ44/40Ca records before and after the K-Pg boundary allowed us to demonstrate a succession of episodes of ocean alkalinity change related to the increase in continental weathering and the biocalcification crisis caused by CO2 emissions from Deccan volcanism. Carbonate compensation through dissolution of carbonate sediments, reduction of biocalcification and/or increase in continental weathering had to occur to compensate for the excess CO2. As a result, this led to rapid changes in oceanic carbonate chemistry, in combination with a reduction in the export of surface alkalinity in response to the early Paleogene planktonic biomineralisation crisisExamination of sulphur cycle disruption instead supports the idea that mass extinction through the K-Pg transition is not associated with a global expansion of anoxic conditions, in contrast to the various Phanerozoic mass extinction events, where there are multiples evidences for the development of anoxic conditions associated with carbon cycle disruption. These findings are consistent with micropalaeontological observations that show no benthic foraminiferal mass extinction.This multi-proxy geochemical approach has the advantage of allowing a more detailed assessment of key parameters such as carbonate chemistry and oceanic anoxia across the Cretaceous-Paleogene transition, thus providing a clearer global picture of biogeochemical perturbations around this time
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McArdle, Nicola Clare. "The use of stable sulphur isotopes to distinguish between natural and anthropogenic sulphur in the atmosphere." Thesis, University of East Anglia, 1993. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.335422.

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Pruett, Lee. "Stable Sulfur Isotope Rations from West Antarctica and the Tien Shan Mountains: Sulfur Cycle Characteristics from Two Environmentally Distinct Areas." Fogler Library, University of Maine, 2003. http://www.library.umaine.edu/theses/pdf/PruettL2003.pdf.

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John, Eleanor Heulwen. "Strontium and sulphur isotopes and the origin of Mid-Late Palaeozoic mass extinctions." Thesis, University of Leeds, 2008. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.493302.

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This project focuses on two Palaeozoic mass extinction events: the Frasnian-Famennian crisis of the Late Devonian and the end-Guadalupian event of the Permian for which similar extinction mechanisms have been proposed. These have been evaluated by examining the nature of the Sr and S isotopic systems during these intervals. Proposed extinction mechanisms for the Late Devonian event include extraterrestrial impacts, rapid sea-level fluctuations, climate change eutrophication and the spread of anoxia in bottom waters. Many models invoke changes in nutrient fluxes related to proposed increases in continental weathering or hydrothermal/volcanic fluxes but these theories have not been tested on a global scale. This study attempted to address this by compiling high resolution 87Sr/86Sr ratio curves for an interval spanning the FrasnianFamennian boundary based on measurements in well-preserved conodont apatite from sections in Poland and Iowa.
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Johnson, Malia. "An investigation of stable sulphur isotopes as a palaeodietary indicator in South Africa." Master's thesis, University of Cape Town, 2011. http://hdl.handle.net/11427/11257.

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Humphries, Stefan. "Stable Isotopes of Sulphur and Oxygen in Forested Catchments: Insight from New Techniques into Sulphur Cycling and Dissolved Organic Matter Alteration." Thesis, University of Waterloo, 2003. http://hdl.handle.net/10012/1270.

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Dissolved organic matter (DOM) is present in all forested catchments and can be important in binding metals, absorbing UV, and the transport of nutrients (C, N, S, P). DOM is extremely heterogeneous in time and space, making it difficult to characterize. New techniques have been developed to determine δ34S and δ18O in DOM. These techniques have been applied to samples from Harp and Plastic Lake catchments (45º23'N, 79º 08'W, 45º11'N, 78º 50'W) in order to obtain information about sources and sinks of DOM within forested catchments on the Canadian Shield. In conjunction with sulphate and DOC concentrations, this new data provides valuable insight into sulphur cycling and DOM alteration within these catchments. Data generated for δ34S-DOM and δ18O-DOM appears to be the first data reported in the literature for DOM. The inorganic (δ34S-SO42-) and organic S (δ34S-DOM) differs by environment in both catchments. The range of δ34S-SO42- is between 3. 3‰ and 10. 3‰, and the range of δ34S-DOM is from 3. 4‰ to 8. 7‰. Sulphate in the Harp Lake catchment in most samples is subject to some sort of cycling within the watershed, since δ34S-SO42- differs from precipitation. In the Harp Lake catchment, upland δ34S-SO42- is influenced by historical precipitation. The δ34S-DOM is derived from leaching and microbial activity of DOM from organic horizons in the soil. The δ34S-SO42- and δ34S-DOM of wetland streams is extremely variable, controlled by hydrology. The δ34S-SO42- provides information on oxidation-reduction dynamics in the wetland, and δ34S-DOM provides information about sources of DOS in the wetland. The δ34S-SO42- and δ34S-DOM are possibly related in Harp Lake. Mineralization of DOS as evidenced by δ34S-DOM and DOS concentrations could be a small input of SO42- into Harp Lake. It is possible δ18O-DOM could be an indicator of DOM alteration. The range of δ18O-DOM is between 8. 2‰ and 14. 4‰. The δ18O-DOM in the Harp Lake catchment is highly correlated with relative molecular weight, which has been shown to decrease with increasing alteration. Wetland streams show the largest range in δ18O-DOM, while uplands, groundwater, and Harp Lake are the least varied. The highest δ18O-DOM values are from sources of DOM such as leaf leachates (representative of forest floor litter) and wetlands. The most depleted samples are from groundwater and Harp Lake which typically contain highly altered DOM. The δ34S-DOM and δ18O-DOM can provide valuable information on sources of DOM and DOM alteration within the catchment. The δ18O-DOM could also allow the separation of autochthonous and allochthonous DOM in lakes.
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Dogramaci, Shawan Shawket. "Isotopes of sulphur, oxygen, strontium and carbon in groundwater as tracers of mixing and geochemical processes, Murray Basin, Australia /." Title page, table of contents and abstract only, 1998. http://web4.library.adelaide.edu.au/theses/09PH/09phd654.pdf.

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Elshayeb, Monalisa. "Determining food web impacts on experimental aquatic systems from the disposal of oil sands process-affected waste materials." Thesis, University of Waterloo, 2006. http://hdl.handle.net/10012/2973.

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Current mining operators in the Athabasca oil sands deposit of Alberta, Canada have made commitments to zero discharge of oil sands process-affected waste materials (OSPM) from the mine site and rehabilitation of mined lands to a pre-mining state. As part of aquatic reclamation efforts, experimental test sites that contain a range of OSPM (solid and liquid components) were constructed to monitor the evolution and viability of aquatic habitats used as disposal sinks for OSPM produced by mining activities. In the present study, stable isotopes of carbon, nitrogen and sulphur were used to gauge some of the potential effects of OSPM site construction methods on aquatic food webs. Carbon and nitrogen isotopic signatures of sediment, dissolved inorganic carbon, dissolved organic carbon, particulate organic matter, periphytic material, plants, plankton, aquatic invertebrates and fish were used to assess differences related to the naphthenic acid (NA) concentration in OSPM and reference sites. For statistical analyses, sites were grouped into low (0 to 4 mg/L), medium (4 to 15 mg/L) and high (> 15 mg/L) NA concentrations. There were no significant differences in food web area or food web length among the low, medium and high NA concentration sites. In most cases, sample carbon isotope analyses of low, medium and high NA concentration sites were not significantly different, suggesting food web carbon sources did not include significant contributions from OSPM materials at OSPM sites. Significant differences, however, were found in the sample nitrogen isotope signatures between low, medium and high NA concentration sites. Ammonia from OSPM is suggested to be the main contributor to δ15N enrichment.

To determine the potential effects of site construction and OSPM within experimental test sites, carbon and sulphur stable isotopes of water, plankton, aquatic invertebrates and fish were analyzed. With the exception of Chaoborus and Haliplus, all carbon isotope signatures were not significantly different in constructed and reference sites. Also with the exception of Haliplus, sulphur isotope values for aquatic organisms from constructed and reference sites were significantly different. Aquatic organisms and water samples from constructed sites built in, or close, to the boundary of Kcw clays typically had δ34S < 0 ?. Coinciding with depleted δ34S signatures found in these aquatic systems were elevated sulphate concentrations. The waters at experimental test sites are in direct contact with the soil materials that facilitate the accumulation of sulphates as a result of the oxidation of substrate sulphide minerals. In general the results of the study suggest that aquatic food web structure and function do not change with the introduction of OSPM. Shifts in isotopic signatures suggestive of changes in food web structure, however, do occur when site construction exposes Kcw clays in the substrate.
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Galeazzo, Tommaso. "Tracking volcanic sulphate : modelling tropospheric volcanic sulphate formation and its oxygen isotopic signatures." Electronic Thesis or Diss., Sorbonne université, 2018. http://www.theses.fr/2018SORUS300.

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Les émissions volcaniques sont une source importante de soufre. Le soufre volcanique est oxydé et forme des aérosols sulfatés qui influencent le climat en absorbant et en dispersant le rayonnement solaire incident. Les émissions de soufre dans la troposphère influencent le climat local et régional, mais de grandes incertitudes subsistent en ce qui concerne l’oxydation et sa conversion en aérosols de sulfate volcanique. L’oxydation du soufre dans une vaste gamme de panaches volcaniques et l’influence des halogènes volcaniques sur la chimie du panache sont étudiées à l’aide d’un modèle de boîte chimique. Parallèlement, la composition isotopique en oxygène du sulfate volcanique, à savoir l’excès de 17-O (∆17O), est à l’étude, ce qui peut limiter les voies d’oxydation du soufre. Les résultats suggèrent qu’en présence de gouttelettes d’eau et de cendres, l’oxydation du soufre dans les panaches est principalement due à l’oxydation en phase aqueuse avec de l’O2 catalysé par des ions de métaux de transition (TMI). Les émissions d’halogènes favorisent la dominance de l’O2 /TMI en induisant des phénomènes d’appauvrissement de la couche d’ozone (ODE). En l’absence de gouttelettes d’eau, la chimie du panache est largement déterminée par la chimie hétérogène des aérosols primaires sulfatés. Les oxydants dominants dans ces panaches sont OH et H2O2. Le taux d’oxydation du soufre est considérablement réduit par rapport aux panaches contenant des gouttelettes d’eau. Les résultats montrent que les isotopes de l’oxygène dans les sulfates exercent de fortes contraintes sur l’équilibre chimique du soufre dans les panaches volcaniques et sur le rôle des halogènes volcaniques
Volcanic emissions are a major source of sulphur. Volcanic sulphur is oxidized and forms sulphate aerosols that influence the climate by absorbing and dispersing incident solar radiation. Sulphur emissions in the troposphere influence local and regional climate, but large uncertainties remain regarding oxidation and its conversion into volcanic sulphate aerosols. The oxidation of sulphur in a wide range of volcanic plumes and the influence of volcanic halogens on plume chemistry are studied using a chemical box model. At the same time, the isotopic oxygen composition of volcanic sulphate, namely the excess of 17-O (∆17O), is being explored, which can provide constraints on sulphur oxidation pathways. The results suggest that in the presence of water droplets and ash, the oxidation of sulphur in plumes is mainly due to aqueous phase oxidation with O2 catalyzed by transition metal ions (TMI). Halogen emissions promote the domi- nance of O2 /TMI by inducing ozone depletion events (ODEs). In the absence of water droplets, plume chemistry is largely determined by heterogeneous chemistry on primary sulphate aerosols. The dominant oxidants in these plumes are OH and H2O2. The oxidation rate of sulphur is significantly reduced compared to plumes containing water droplets. The results show that oxygen isotopes in sulphates provide strong constraints on the chemical balance of sulphur in volcanic plumes and on the role of volcanic halogens
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Andersson, Karin. "Diet och identitet : Analyser av kol- kväve- och svavelisotoper på indivier från det kristna senvikingatida gravfältet i Björned, Torsåkers socken, Ångermanland." Thesis, Stockholm University, Department of Archaeology and Classical Studies, 2006. http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-1142.

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This paper deals with the late Viking age/early medieval grave field in Björned, Torsåker parish, Ångermanland County in northern Sweden. The grave field in Björned is rare because it has all the signs of being Christianized before the surroundings. This awakes questions such as if the people of Björned came from another place and brought the religion with them or if someone else did that for them. To find these answers I have analysed the stable isotope ratios [delta]13C, [delta]15N and [delta]34S in human bone collagen. Through these stable isotopes we can not only see what the people consumed but also where their food had its origin. It seems like several people from the grave field had a different origin then the rest.

Books on the topic "Sulphur and Callcium isotopes":

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1935-, Krouse H. R., Grinenko V. A, International Council of Scientific Unions. Scientific Committee on Problems of the Environment., and United Nations Environment Programme, eds. Stable isotopes: Natural and anthropogenic sulphur in the environment. Chichester: Published on behalf of the Scientific Committee on Problems of the Environment (SCOPE) of the International Council of Scientific Unions (ICSU) in collaboration with the United Nations Environment Programme by Wiley, 1991.

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Mikołajczuk, Agnieszka. Efekty izotopowe siarki w reakcjach chemicznych. Warszawa: Instytut Chemii i Techniki Jądrowej, 1999.

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McArdle, Nicola Clare. The use of stable sulphur isotopes to distinguish between natural and anthropogenic sulphur in the atmosphere. Norwich: University of East Anglia, 1993.

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Agency, International Atomic Energy, ed. Studies on sulphur isotope variations in nature: Proceedings of an advisory group meeting on the hydrology and geochemistry of sulphur isotopes. Vienna: International Atomic Energy Agency, 1987.

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Derda, Małgorzata. Izotopy siarki w przyrodzie: Metodyka oznaczania stosunków izotopowych siarki w węglu i ropie naftowej metodą spektrometrii masowej. Warszawa: Instytut Chemii i Techniki Jądrowej, 1999.

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Tyler, Noel. Oxygen- and sulphur-isotope properties of quartz and pyrite from the Pilgrim's Rest Goldfield, eastern Transvaal. Johannesburg: Economic Geology Research Unit, University of the Witwatersrand, 1986.

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Krouse, H. R. Environmental sulphur isotope studies in Alberta: A review. Calgary, AB: Acid Deposition Research Program, 1987.

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Krouse, H. R. Environmental sulphur isotope studies in Alberta: A review. Calgary: Acid Deposition Research Program, 1987.

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Hughes, Anwen Jane. Identification of natural and anthropogenic sources of sulphate in two UK aquifers using sulphur and oxygen isotopes. Birmingham: University of Birmingham, 1998.

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Krouse, H. R. Stable Isotopes: Natural and Anthropogenic Sulphur in the Environment (Scope). John Wiley & Sons Ltd (Import), 1991.

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Book chapters on the topic "Sulphur and Callcium isotopes":

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Prasolov, Edward, Vladimir Khalenev, Boris Belyatsky, Edward Prilepsky, and Tatiana Nazarova. "Sulphur Isotopes." In Springer Geology, 49–72. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-05216-4_2.

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Bottrell, S. H., and R. Raiswell. "Sulphur Isotopes and Microbial Sulphur Cycling in Sediments." In Microbial Sediments, 96–104. Berlin, Heidelberg: Springer Berlin Heidelberg, 2000. http://dx.doi.org/10.1007/978-3-662-04036-2_12.

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Krouse, H. Roy, and Bernhard Mayer. "Sulphur and Oxygen Isotopes in Sulphate." In Environmental Tracers in Subsurface Hydrology, 195–231. Boston, MA: Springer US, 2000. http://dx.doi.org/10.1007/978-1-4615-4557-6_7.

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Spiro, B., J. Morrisson, and O. W. Purvis. "Sulphur Isotopes in Lichens as Indicators of Sources." In Monitoring with Lichens — Monitoring Lichens, 311–15. Dordrecht: Springer Netherlands, 2002. http://dx.doi.org/10.1007/978-94-010-0423-7_26.

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Reuschel, M., H. Strauss, and A. Lepland. "7.1 The End of Mass-Independent Fractionation of Sulphur Isotopes." In Reading the Archive of Earth’s Oxygenation, 1049–58. Berlin, Heidelberg: Springer Berlin Heidelberg, 2012. http://dx.doi.org/10.1007/978-3-642-29670-3_1.

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Bauer, G. A., G. Gebauer, A. F. Harrison, P. Högberg, L. Högbom, H. Schinkel, A. F. S. Taylor, et al. "Biotic and Abiotic Controls Over Ecosystem Cycling of Stable Natural Nitrogen, Carbon and Sulphur Isotopes." In Ecological Studies, 189–214. Berlin, Heidelberg: Springer Berlin Heidelberg, 2000. http://dx.doi.org/10.1007/978-3-642-57219-7_9.

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Andersson, Per, Peter Torssander, and Johan Ingri. "Sulphur isotope ratios in sulphate and oxygen isotopes in water from a small watershed in Central Sweden." In Sediment/Water Interactions, 205–17. Dordrecht: Springer Netherlands, 1992. http://dx.doi.org/10.1007/978-94-011-2783-7_18.

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Wotte, Thomas. "Carbon and Sulphur Isotopes from the Cambrian Series 2–Series 3 Boundary: Potential Proxies for Global Correlation?" In Springer Geology, 457–60. Cham: Springer International Publishing, 2014. http://dx.doi.org/10.1007/978-3-319-04364-7_88.

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Conference papers on the topic "Sulphur and Callcium isotopes":

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Gulbransen, Emil, Henrik Friis, Tom Andersen, and William Hutchison. "Sulphur isotopes and helvine-group minerals in the Larvik Plutonic Complex, Norway (LPC)." In Goldschmidt2023. France: European Association of Geochemistry, 2023. http://dx.doi.org/10.7185/gold2023.19386.

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Meshoulam, A., W. Said-Ahmad, C. Turich, N. Luu, T. Jacksier, A. Stankiewicz, A. Shurki, and A. Amrani. "Mechanism and Kinetics of Volatile Organic Sulfur Compounds Formation and their Sulphur Isotopes Imprint." In 29th International Meeting on Organic Geochemistry. European Association of Geoscientists & Engineers, 2019. http://dx.doi.org/10.3997/2214-4609.201902842.

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Gallagher, Catherine, R., Paul, S. Savage, Geoffrey M. Nowell, Bruce Houghton, Thorvaldur Thordarson, and Kevin, W. Burton. "Tracing Mechanisms of Sulphur Release with Cu and Zn Isotopes in Historical Icelandic Flood Lavas." In Goldschmidt2020. Geochemical Society, 2020. http://dx.doi.org/10.46427/gold2020.777.

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Lu, Chaojin, Ardiansyah Koeshidayatullah, Zou Huayao, and Peter K. Swart. "FABRIC-SPECIFIC ISOTOPIC VARIABILITY IN LATE EDIACARAN DOLOMITES, SOUTH CHINA: ELUCIDATED BY MAGNESIUM, SULPHUR AND CLUMPED ISOTOPES." In GSA 2020 Connects Online. Geological Society of America, 2020. http://dx.doi.org/10.1130/abs/2020am-355185.

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Adenan, Mohd Noor Hidayat, Zainon Othman, Salmah Moosa, Simon Kelly, Aiman Abrahim, Zawiyah Sharif, Nurhazwani Abd Rahman, et al. "Determination of the geographical origin of Malaysian edible bird’s nest by carbon, nitrogen and sulphur (CNS) stable isotopes." In APPLICATION OF MATHEMATICS IN TECHNICAL AND NATURAL SCIENCES: 12th International On-line Conference for Promoting the Application of Mathematics in Technical and Natural Sciences - AMiTaNS’20. AIP Publishing, 2020. http://dx.doi.org/10.1063/5.0031893.

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Drummond, Drew, Robert Blakeman, John H. Ashton, Ian Farrelly, Jonathan Cloutier, Lola Yesares, and Adrian Boyce. "Ore depositional processes at the carbonate-hosted Tara Deep Zn-Pb deposit, Navan, Ireland." In Irish-type Zn-Pb deposits around the world. Irish Association for Economic Geology, 2023. http://dx.doi.org/10.61153/dqcn2038.

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Abstract:
The Tara Deep Zn-Pb deposit (currently 26.2 Mt @ 8.4% Zn, 1.6% Pb) is the latest major discovery by Boliden Tara Mines (first announced in 2016) which significantly adds to the existing world-class Navan deposit. Located 2 km south of the Navan deposit in Co. Meath, Ireland, economic mineralization is hosted by upper Tournaisian carbonates (Pale Beds; 87% of the total economic resource), within a degraded footwall of a major south-dipping normal fault, and also within lower Visean sedimentary breccias (‘S Fault’ Conglomerates; SFC). Sphalerite and galena are the dominant sulphides, with massive, cavity fill and brecciated textures dominating. These textures attest complex, subsurface, episodic mineralization events that display considerable reworking, fracturing, dolomitization, open-space infill and selective replacement. Lower Visean syn-rift sliding, erosion, and deposition of thick debrites and calc-turbidites at Tara Deep record basin margin processes near extensional faulting associated with formation of the Dublin Basin. These debrites host detrital sulphide-rich clasts and offer unambiguous evidence that the onset of mineralization occurred during the upper Tournaisian. δ34S values of base metal sulphides have a bimodal distribution suggesting both bacteriogenic (-13.5 to -3.6‰) and hydrothermal sulphur sources (+3.4 to +16.2‰). Both textural and sulphur isotope data reveal the dynamic nature of mineralization at Tara Deep and infer fluid mixing. Lead isotope analyses display remarkably homogeneous 206Pb/204Pb of 18.23 ±0.006 (2σ, n=25), which is coincident with Pb isotope data across the Navan deposit. Subsequently, Tara Deep and Navan are isotopically similar, showing both a statistically identical Pb isotopic signature and a bimodal sulphide S isotopic distribution and homogeneous sulphate signature. In particular, the Pb isotopes and the hydrothermal S signature, correlate with Navan and support the view that base-metals were leached from the underlying Lower Palaeozoic basement, and suggest that similar deep, circulating metalliferous fluids were also involved at Tara Deep. However, despite these similarities, key differences can be recognized within the S isotope data; around 5‰ shifts to higher δ34S in the surface-derived S isotope signatures (both bacteriogenic sulphide and sulphate) indicate that Tara Deep’s sulphur was sourced from a distinct seawater/connate fluid signature. The Tara Deep deposit has many similarities with the neighbouring Navan deposit reflecting comparable controls on the mineralizing processes in terms of host rocks, Pb and S sources, and tectonic environment. Mineralization initiated during an early phase of the developing Dublin Basin (syn-diagenetically) and kept pace with rifting and subsequently an evolving basin.
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Drummond, Drew, Robert Blakeman, John H. Ashton, Ian Farrelly, Jonathan Cloutier, Lola Yesares, and Adrian Boyce. "Ore depositional processes at the carbonate-hosted Tara Deep Zn-Pb deposit, Navan, Ireland." In Irish-type Zn-Pb deposits around the world. Irish Association for Economic Geology, 2023. http://dx.doi.org/10.61153/dpcd8412.

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Abstract:
The Tara Deep Zn-Pb deposit (currently 26.2 Mt @ 8.4% Zn, 1.6% Pb) is the latest major discovery by Boliden Tara Mines (first announced in 2016) which significantly adds to the existing world-class Navan deposit. Located 2 km south of the Navan deposit in Co. Meath, Ireland, economic mineralization is hosted by upper Tour-naisian carbonates (Pale Beds; 87% of the total economic resource), within a degraded footwall of a major south-dipping normal fault, and also within lower Visean sedimentary breccias (‘S Fault’ Conglomerates; SFC). Sphalerite and galena are the dominant sulphides, with massive, cavity fill and brecciated textures dominating. These textures attest complex, subsurface, episodic mineralization events that display considerable reworking, fracturing, dolomitization, open-space infill and selective replacement. Lower Visean syn-rift sliding, erosion, and deposition of thick debrites and calc-turbidites at Tara Deep record basin margin processes near extensional faulting associated with formation of the Dublin Basin. These debrites host detrital sulphide-rich clasts and offer unambiguous evidence that the onset of mineralization occurred during the upper Tournaisian. δ34S values of base metal sulphides have a bimodal distribution suggesting both bacteriogenic (-13.5 to -3.6‰) and hydrothermal sulphur sources (+3.4 to +16.2‰). Both textural and sulphur isotope data reveal the dynamic nature of mineralization at Tara Deep and infer fluid mixing. Lead isotope analyses display remarkably homogeneous 206Pb/204Pb of 18.23 ±0.006 (2σ, n=25), which is coincident with Pb isotope data across the Navan deposit. Subsequently, Tara Deep and Navan are isotopically similar, showing both a statistically identical Pb isotopic signature and a bimodal sulphide S isotopic distribution and homogeneous sulphate signature. In particular, the Pb isotopes and the hydrothermal S signature, correlate with Navan and support the view that base-metals were leached from the underlying Lower Palaeozoic basement, and suggest that similar deep, circulating metalliferous fluids were also involved at Tara Deep. However, despite these similarities, key differences can be recognized within the S isotope data; around 5‰ shifts to higher δ34S in the surface-derived S isotope signatures (both bacteriogenic sulphide and sulphate) indicate that Tara Deep’s sulphur was sourced from a distinct seawater/connate fluid signature. The Tara Deep deposit has many similarities with the neighbouring Navan deposit reflecting comparable controls on the mineralizing processes in terms of host rocks, Pb and S sources, and tectonic environment. Mineralization initiated during an early phase of the developing Dublin Basin (syn-diagenetically) and kept pace with rifting and subsequently an evolving basin.

Reports on the topic "Sulphur and Callcium isotopes":

1

Paulen, R. C., A. Plouffe, S. Paradis, and I. R. Smith. Lead and sulphur isotopes of sphalerite and galena grains recovered from till samples, northwest Alberta. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 2014. http://dx.doi.org/10.4095/293464.

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Eckstrand, O. R., L. N. Grinenko, H. R. Krouse, A. D. Paktunc, P L Schwann, and R. F. J. Scoates. Preliminary Data On Sulphur Isotopes and Se/S Ratios, and the Source of Sulphur in Magmatic Sulphides From the Fox River Sill, Molson Dykes and Thompson Nickel Deposits, northern Manitoba. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 1989. http://dx.doi.org/10.4095/126860.

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To the bibliography