{"accessLevel": "public", "bureauCode": ["010:12"], "contactPoint": {"@type": "vcard:Contact", "fn": "Sara E Peek", "hasEmail": "mailto:speek@usgs.gov"}, "description": "Samples of the crater lake water were filtered in the field with a 0.45 micron filter. Subsequently, additional precipitates formed in the solute-rich samples (secondary precipitates) which were subsequently filtered in the lab with a 0.45 micron filter. Resulting residues were analyzed both in situ on the filter and after scraping. Samples were sputter coated with 10 nm Au, then imaged in a Tescan VEGA3 scanning electron microscope (SEM) equipped with an Oxford 150 mm2 X-MaxN large area energy dispersive spectrometer at the U.S. Geological Survey, Menlo Park, CA. Elemental backscatter (BSE) images were collected with an accelerating voltage (HV) of 30 kV and a working distance (WD) of ~15 mm. Magnification is indicated on individual images.", "distribution": [{"@type": "dcat:Distribution", "accessURL": "https://doi.org/10.5066/P99H412X", "description": "Landing page for access to the data", "format": "XML", "mediaType": "application/http", "title": "Digital Data"}, {"@type": "dcat:Distribution", "description": "The metadata original format", "downloadURL": "https://data.usgs.gov/datacatalog/metadata/USGS.614021c3d34e1449c5d38541.xml", "format": "XML", "mediaType": "text/xml", "title": "Original Metadata"}], "identifier": "http://datainventory.doi.gov/id/dataset/USGS_614021c3d34e1449c5d38541", "keyword": ["Hawai'i", "Kilauea", "SEM", "USGS:614021c3d34e1449c5d38541", "geoscientificInformation", "sulfur isotopes"], "modified": "2023-03-30T00:00:00Z", "publisher": {"@type": "org:Organization", "name": "U.S. Geological Survey"}, "spatial": "-155.29700, 19.39400, -155.26400, 19.42000", "theme": ["geospatial"], "title": "Chemical and isotopic composition of gas, water, and solids from the 2019-2020 water lake in Halema\u2019uma\u2019u Crater, K\u012blauea Volcano, Hawaii: Scanning Electron Microscopy (SEM) of solids filtered from water samples"}