Chemical and isotopic composition of gas, water, and solids from the 2019-2020 water lake in Halema’uma’u Crater, Kīlauea Volcano, Hawaii: Sulfur and oxygen isotopes of dissolved sulfate
Aliquots of collected water samples were prepared for isotopic analysis at the USGS laboratories in Menlo Park, CA by precipitating dissolved sulfate as barium sulfate, using the methods of Carmody and others (1997).  Sulfur isotopes were analyzed at the USGS laboratories in Reston, Virginia. For sulfur isotope ratio …