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Preparation of Authigenic Pyrite from Methane-bearing Sediments for In Situ Sulfur Isotope Analysis Using SIMS
 

Preparation of Authigenic Pyrite from Methane-bearing Sediments for In Situ Sulfur Isotope Analysis Using SIMS

Article DOI: 10.3791/55970-v • 09:31 min • August 31st, 2017
August 31st, 2017 •
1,3, 1,2,3,4, 5, 2,3, 6, 2,3, 7, 6
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

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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.

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Keywords: Pyrite Authigenic Pyrite Methane-bearing Sediments In Situ Sulfur Isotope Analysis SIMS Diagenetic History Biogeochemical Processes Organiclastic Sulfur Reduction Sulfur-driven Anaerobic Oxidation Of Methane High-resolution Precision Sediment Core Sediment Separation Pyrite Aggregate Bulk Sulfur Extraction Morphological Features Textural Features Sample Preparation
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