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South China Sea Bio-Resource Exploitation and Utilization Collaborative Innovation Center

1 ARTICLES PUBLISHED IN JoVE

Environment

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

Zhiyong Lin^1,3, Xiaoming Sun^1,2,3,4, Jörn Peckmann⁵, Yang Lu^2,3, Harald Strauss⁶, Li Xu^2,3, Hongfeng Lu⁷, Barbara M.A. Teichert⁶

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

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.