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i) Sulfur isotope analysis of samples from outside the water lake in Halema’uma’u Crater, Kīlauea Volcano, Hawaii

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Publication Date
Start Date
2019-10-26
End Date
2020-10-26

Citation

Peek, S., Nadeau, P.A., Younger, E.F., Elias, T., Kelly, P.J., Damby, D.E., Najorka, J., Lerner, A.H., and Hurwitz, S., 2023, Chemical and isotopic composition of gas, water, and solids from the 2019-2020 water lake in Halema’uma’u Crater, Kīlauea Volcano, Hawaii: U.S. Geological Survey data release, https://doi.org/10.5066/P99H412X.

Summary

Samples from outside the crater lake were analyzed for their sulfur isotopic composition. Samples of sulfate alteration and native sulfur from the Kīlauea summit, Halema’uma’u crater (HMM), and the Lower East Rift Zone (LERZ) were ground, weighed into tin capsules, and analyzed by conversion to sulfur dioxide with an elemental analyzer. Samples were subsequently analyzed with a continuous flow isotope ratio mass spectrometer (Brenna, 1997). Water samples from the NSF well on Kīlauea summit and samples of ash leachate from the 2018 eruption of Kīlauea were processed by precipitating dissolved sulfate as barium sulfate, using the methods described in Carmody et al. (1997), and then analyzed as described above. Samples are analyzed simultaneously [...]

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supporting_sulfur_isotopes.csv 3.15 KB text/csv

Purpose

The purpose of this report is to: (1) provide water chemistry data from sample sites in the short-lived water lake in Halema’uma’u crater; (2) describe methods used to collect and analyze the samples; (3) supplement interpretive reports.

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