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	Provedor de dados ArchiMer (2) Autor Chen, Chunqing (1) Fouquet, Yves (1) Grassineau, N. V. (1) He, Dong (1) Le Gall, B. (1) Liu, Yujia (1) Lu, Hailong (1) Moussa, N. (1) Nonnotte, P. (1) Ponzevera, Emmanuel (1) Rouxel, Olivier (1) Ruffine, Livio (1) Yalamaz, Burak (1) Yang, Hailin (1) Yin, Xijie (1) Zhu, Zhenli (1) Çağatay, M. Namik (1) Mais... Palavra-chave Strontium isotopes (2) Anaerobic biodegradation (1) Bulk carbonates (1) Carbon and oxygen isotopes (1) Epithermal (1) Hydrothermal system (1) SE Afar rift (1) Sea of Marmara (1) Sulfur isotopes (1) Transgression (1) Mais... Tipo do documento Text (2) Ano 2019 (1) 2017 (1) País France (2) Idioma Inglês (2)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 2 Primeira ... 1 ... Última Sulfur and strontium isotopic study of epithermal mineralization: A case study from the SE Afar Rift, Djibouti ArchiMer Moussa, N.; Rouxel, Olivier; Grassineau, N. V.; Ponzevera, Emmanuel; Nonnotte, P.; Fouquet, Yves; Le Gall, B.. Epithermal mineralization was recently described in synrift volcanic rocks from the SE Afar Rift in Djibouti. To infer fluid sources in this system, coupled sulfur and strontium isotopic analyses were performed on mineralized samples from hydrothermal veins and stockwork zones. Mineralization includes gypsum and chalcedony, and/or quartz ± carbonate containing gold and sulfides. Sulfur isotopic compositions of sulfides and sulfates were determined using Multicollector-Inductively Coupled Plasma Mass Spectrometer (MC ICPMS); Laser Ablation MC ICPMS; and Continuous Flow Elemental Analyzer-Isotope Ratio Mass Spectrometry while strontium isotopes were determined by Thermal Ionisation Mass Spectrometry (TIMS) methods. Sulfur isotopic composition of sulfides... Tipo: Text Palavras-chave: Hydrothermal system; Sulfur isotopes; Strontium isotopes; SE Afar rift; Epithermal. Ano: 2017 URL: http://archimer.ifremer.fr/doc/00356/46712/46581.pdf Interpretation of Late‐Pleistocene/Holocene transition in the Sea of Marmara from geochemistry of bulk carbonates ArchiMer Liu, Yujia; Lu, Hailong; Yin, Xijie; Ruffine, Livio; Çağatay, M. Namik; Yang, Hailin; Chen, Chunqing; He, Dong; Zhu, Zhenli; Yalamaz, Burak. Isotopic, mineralogical and elemental analyses have been conducted for the geochemical characteristics of the bulk carbonates in the sediment cores from the Western High and Çınarcık Basin in the Sea of Marmara to investigate the authigenic, biogenic and detrital components and their possible use in paleoceanographic studies. The Western High is a relatively shallow (‐500 to ‐800 m) compressional area characterized by relatively low sedimentation rates (30‐40 cm/kyr) whereas the Çnarcık Basin is a deep (~1250 m) transtentional area represented by high sedimentation rates (>1 m/kyr). Both 87Sr/86Sr and δ18O of bulk carbonates from the Western High exhibit significant variations, increasing steeply from 87Sr/86Sr of 0.708437 to 0.708916 and δ18O of ‐3.2‰... Tipo: Text Palavras-chave: Bulk carbonates; Carbon and oxygen isotopes; Strontium isotopes; Transgression; Anaerobic biodegradation; Sea of Marmara. Ano: 2019 URL: https://archimer.ifremer.fr/doc/00514/62518/66821.pdf Registros recuperados: 2 Primeira ... 1 ... Última

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