Experimental constraints on kinetic and equilibrium silicon isotope fractionation during the formation of non-biogenic chert deposits [PDF]
, 2015 Silicon isotopic compositions (δ30Si) of modern and ancient siliceous sedimentary rocks provide valuable information on conditions in depositional environments, but interpretations are hampered by the lack of experimentally validated fractionation ...
van Bergen, Manfred J. +8 more
core +1 more source
Desenvolvimento de procedimentos analíticos para a determinação de enxofre em carvão usando espectrometria de absorção molecular de alta resolução com fonte contínua em forno de grafite [PDF]
, 2013 Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro de Ciências Físicas e Matemáticas, Programa de Pós-Graduação em Química, Florianópolis, 2013.Análise direta de amostras sólidas é uma boa alternativa para a determinação de enxofre ...
Mior, Renata
core
Sedimentary Mercury Enrichments as a Tracer of Large Igneous Province Volcanism
Geophysical Monograph Series, Page 247-262., 2021 Exploring the links between Large Igneous Provinces and dramatic environmental impact
An emerging consensus suggests that Large Igneous Provinces (LIPs) and Silicic LIPs (SLIPs) are a significant driver of dramatic global environmental and biological changes, including mass extinctions.
Lawrence M. E. Percival +3 more
wiley +13 more sources
Why aquatic scientists should use sulfur stable isotope ratios (ẟ34S) more often
Over the last few decades, measurements of light stable isotope ratios have been increasingly used to answer questions across physiology, biology, ecology, and archaeology.
Phillips, AA +9 more
core +1 more source
Applied Water ScienceThis study focused on the chemistry and isotopes of sulfur in lakes. The bottom sediments and water columns of lakes were found to contain reduced forms of sulfur, including hydrogen sulfide ions, elemental sulfur, and thiosulfate ions, along with ...
S. V. Borzenko, I. A. Fedorov
doaj +1 more source
Off limits: sulfate below the sulfate-methane transition
Frontiers in Earth Science, 2016 One of the most intriguing recent discoveries in biogeochemistry is the ubiquity of cryptic sulfur cycling. From subglacial lakes to marine oxygen minimum zones, and in marine sediments, cryptic sulfur cycling – the simultaneous sulfate consumption and ...
Benjamin Brunner +4 more
doaj +1 more source
, 2020 The Vindhyan Basin in central India preserves a thick (~5 km) sequence of sedimentary and lesser volcanic rocks that provide a valuable archive of a part of the Proterozoic (~1800–900 Ma) in India.
Indrani Mukherjee +13 more
core +1 more source
Sulfur Isotope of Epilithic Mosses to Trace Variation of Atmospheric Sulfur Sources
Journal of Isotopes, 2016 全文: PDF (5099 KB) HTML (1 KB) 输出: BibTeX | EndNote (RIS) 摘要 为探讨石生苔藓硫同位素组成特征对区域性大气硫源的指示作用，连续两年采集鄱阳湖生态经济区内的石生苔藓样品，测定δ34S值；并结合已有的雨水、煤的硫同位素值等相关研究数据进行对比分析。样品δ34S值均偏正，平均为+4.9‰，取值范围为+1.9‰~+9.6‰；石生苔藓δ34S值与空气中SO2浓度呈负相关关系；南昌 ...
HU Fei-fei1,2;PAN Jia-yong1,3;ZHANG Liang1,2;XIE Shu-rong3;CHEN Yi-ping3;XIA Fei1,3
doaj +1 more source
, 2016 This work was supported by NASA Exobiology (NNX07AV54G) (A.Z. and J.F.), a Natural Environment Research Council Fellowship (NE/H016805) (A.Z.), the National Science Foundation (NSF EAR-0525503 and EAR-1124411) (J.M.), and the NASA Astrobiology Institute (
Zerkle, Aubrey Lea +3 more
core +1 more source
Untapping the potential of sulfur isotope analysis in biominerals [PDF]
, 2018 Data source: Supplementary material, http://www.int-res.com/articles/suppl/m598p159_supp.pdfSulfur isotope ratios are used to untangle food web dynamics, track animal movements and determine dietary provenance.
J Cliff +7 more
core +1 more source