{"accessLevel": "public", "bureauCode": ["010:12"], "contactPoint": {"@type": "vcard:Contact", "fn": "Nadine M Piatak", "hasEmail": "mailto:npiatak@usgs.gov"}, "description": "Oxidation state and bonding environment of Ge and Cu in ZnS and Zn mineral concentrates from a variety of sources [Central Tennessee mining district (TN), Metaline mining district, (WA), and Red Dog mine (AK)] were determined by linear combination fits from x-ray absorption spectroscopy (XAS) analysis. Sphalerites from the East Tennessee mining district contained Ge in concentrations that were too low to generate a X-ray absorption spectra with an edge step. When applicable, Ge content in quartz was determined using XAS edge steps.\nData and methods reported are part of a research study published here: \nHayes SM, McAleer RJ, Piatak NM, White SJO, Seal RR II (2023), A novel nondestructive workflow for examining germanium and co-substituents in ZnS. Front. Earth Sci. 11:939700. doi: 10.3389/feart.2023.939700", "distribution": [{"@type": "dcat:Distribution", "accessURL": "https://doi.org/10.5066/P93TEQTU", "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.62fa73a1d34e25bd092879b3.xml", "format": "XML", "mediaType": "text/xml", "title": "Original Metadata"}], "identifier": "http://datainventory.doi.gov/id/dataset/USGS_62fa73a1d34e25bd092879b3", "keyword": ["Alaska", "Cenozoic Era", "Germanium", "Hemimorphite", "Holocene Epoch", "Mine wastes", "Quaternary Period", "Sphalerite", "Tennessee", "USGS:62fa73a1d34e25bd092879b3", "Washington"], "modified": "2023-01-13T00:00:00Z", "publisher": {"@type": "org:Organization", "name": "U.S. Geological Survey"}, "spatial": "-163.02234779407445, 36.06482168750488, -83.70279595993048, 68.18243745043995", "theme": ["geospatial"], "title": "Molecular-scale speciation of germanium and copper within sphalerite from Central Tennessee mining district (TN), Red Dog mining district (AK), and Metaline mining district (WA)"}