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Preparation of Authigenic Pyrite from Methane-bearing Sediments for In Situ Sulfur Isotope Analysis Using SIMS
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Preparation of Authigenic Pyrite from Methane-bearing Sediments for In Situ Sulfur Isotope Analysis Using SIMS
1School of Earth Sciences and Engineering,Sun Yat-sen University, 2School of Marine Sciences,Sun Yat-sen University, 3Guangdong Provincial Key Laboratory of Marine Resources and Coastal Engineering, 4South China Sea Bio-Resource Exploitation and Utilization Collaborative Innovation Center, 5Institut für Geologie,Universität Hamburg, 6Institut für Geologie und Paläontologie,Westfälische Wilhelms-Universität Münster, 7Guangzhou Marine Geological Survey
Capítulos
- 00:05Título
- 00:59Sediment Core Sample Collection
- 02:48Morphology Observation
- 04:17Sample Preparation for SIMS Analysis
- 05:25SIMS Analysis
- 06:47Results: The Content and Sulfur Isotopic Compositions of Sulfide Minerals
- 08:29Conclusion
Analyses of the sulfur isotopic composition (δ34S) of pyrite from methane-bearing sediments have typically focused on bulk samples. Here, we applied secondary ion mass spectroscopy to analyze the δ34S values of various pyrite generations to understand the diagenetic history of pyritization.
Tags
PyriteAuthigenic PyriteMethane-bearing SedimentsIn Situ Sulfur Isotope AnalysisSIMSDiagenetic HistoryBiogeochemical ProcessesOrganiclastic Sulfur ReductionSulfur-driven Anaerobic Oxidation Of MethaneHigh-resolutionPrecisionSediment CoreSediment SeparationPyrite AggregateBulk Sulfur ExtractionMorphological FeaturesTextural FeaturesSample Preparation
