{"accessLevel": "public", "bureauCode": ["010:12"], "contactPoint": {"@type": "vcard:Contact", "fn": "Carole D. Johnson", "hasEmail": "mailto:gs-w_ogw_bg_info@usgs.gov"}, "description": "In June 2018, the U.S. Geological Survey (USGS) in cooperation with the U.S. Environmental Protection Agency (EPA) collected geophysical measurements to help evaluate the suitability of a proposed landfill site for disposing mine-waste materials in Fredericktown, Missouri. Geophysical methods were used to evaluate and characterize the unconsolidated sediment (i.e., regolith) above the crystalline bedrock as well as determine depth bedrock. Land-based geophysical methods included frequency domain electromagnetic induction (FDEM), electrical resistivity tomography (ERT), horizontal-to-vertical spectral ratio passive seismic (HVSR), and shear-wave seismic refraction. Water-borne methods included FDEM surveys to characterize the Fredericktown City Lake sediments as well as forward-looking infrared (FLIR) imagery taken along the City Lake shoreline to identify locations of potential groundwater-surface water interactions.", "distribution": [{"@type": "dcat:Distribution", "accessURL": "https://doi.org/10.5066/P9EL99BD", "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.5cb75adfe4b0c3b0065d7c03.xml", "format": "XML", "mediaType": "text/xml", "title": "Original Metadata"}], "identifier": "http://datainventory.doi.gov/id/dataset/USGS_5cb75adfe4b0c3b0065d7c03", "keyword": ["Groundwater", "Horizontal-to-Vertical Spectral Ratio (HVSR) Seismic", "Passive Seismic", "Seismic Methods", "Shear-wave velocity", "USGS:5cb75adfe4b0c3b0065d7c03", "electrical resistivity imaging", "electromagnetic surveying", "environment", "forward looking infrared imaging", "geophysics", "geoscientificInformation", "marine geophysics", "resistivity", "shear wave", "soil temperature", "water temperature"], "modified": "2020-08-18T00:00:00Z", "publisher": {"@type": "org:Organization", "name": "U.S. Geological Survey"}, "spatial": "-90.311825, 37.574500, -90.305000, 37.585200", "theme": ["geospatial"], "title": "Geophysical Data Collected for an Assessment of a Proposed Landfill Site in Fredericktown, Missouri, June 2018"}