{"accessLevel": "public", "bureauCode": ["010:12"], "contactPoint": {"@type": "vcard:Contact", "fn": "Sara E Peek", "hasEmail": "mailto:speek@usgs.gov"}, "description": "Water samples for Oxygen-18 and deuterium isotope determinations were stored unfiltered in 15 ml glass bottles and analyzed at the USGS laboratories in Reston, Virginia. Analysis of oxygen isotopes was according to the methods of Epstein and Mayeda [1953] with a precision of \u00b10.1\u2030, and the hydrogen isotopes were analyzed according to the method described in Kendall and Coplen [1985] and Coplen et al. [1991] with a precision of \u00b11.5\u2030. Ratios are reported relative to VSMOW.\nReferences:\nCoplen, T. B., J. D. Wildman, and J. Chen, Improvements in the gaseous hydrogen-water equilibration technique for hydrogen isotope ratio analysis, Anal. Chem., 63, 910\u2013 912, 1991. doi:10.1021/ac00009a014.\nEpstein, S., and T. Mayeda, Variation of 18O content of waters from natural sources, Geochim. Cosmochim. Acta, 4, 213\u2013 224, 1953, doi: 10.1016/0016-7037(53)90051-9.\nKendall, C., and T. B. Coplen, Multi sample conversion of water to hydrogen by zinc for stable isotope determination, Anal. Chem., 57, 1437-1440, 1985, doi: 10.1021/ac00284a058.", "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.6140212fd34e1449c5d38533.xml", "format": "XML", "mediaType": "text/xml", "title": "Original Metadata"}], "identifier": "http://datainventory.doi.gov/id/dataset/USGS_6140212fd34e1449c5d38533", "keyword": ["Hawai'i", "Kilauea", "USGS:6140212fd34e1449c5d38533", "geoscientificInformation", "sulfur isotopes", "water chemistry", "water 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: Water Isotopes"}