IODP Expedition 385 Per-fluorocarbon tracers (PFT)

Authors: Teske, Andreas P.; Lizarralde, Daniel; Höfig, Tobias W.; Aiello, Ivano W.; Ash, Jeanine L.; Bojanova, Diana P.; Buatier, Martine D.; +26 Authors

doi: 10.5281/zenodo.7846616 , 10.5281/zenodo.7846615

IODP Expedition 385 Per-fluorocarbon tracers (PFT)

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Abstract

Perfluorocarbon tracers (PFT) can be used to quantify the amount of core contamination due to drilling fluid. PFT is continuously pumped into the stream of drilling fluid to maintain a consistent concentration. Core subsamples are then measured in triplicate using µECD gas chromatography. Measured levels of PFT of the core outer surface, the outer core surface after undergoing a decontamination procedure, and the inner core are then compared to determine the degree of contamination.

Keywords

International Ocean Discovery Program, Guaymas Basin Tectonics and Biosphere, alteration, Expedition 385, heat flow, IODP, JOIDES Resolution, Site U1545, Site U1546, carbon budget, Site U1549, Site U1547, Gulf of California, Site U1548, deep biosphere, Ringvent, sill emplacement, Site U1552, hydrothermal alteration, Site U1550, Site U1551

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