{"accessLevel": "public", "bureauCode": ["010:12"], "contactPoint": {"@type": "vcard:Contact", "fn": "U.S. Geological Survey", "hasEmail": "mailto:whsc_data_contact@usgs.gov"}, "description": "The karstic Edwards and Trinity aquifers are classified as major sources of water in south-central Texas by the Texas Water Development Board, and both are classified as major aquifers by the State of Texas. The original depositional history of the carbonate limestone and dolomite rocks that contain the Edwards and Trinity aquifers provided the starting point from which primary and secondary porosity, diagenesis, fracturing, and faulting influenced their development by modifying the porosity, permeability, and transmissivity of each aquifer. \nPrevious studies such as those by the U.S. Geological Survey (USGS) and the Edwards Aquifer Authority (EAA) have mapped the geology, hydrostratigraphy, and structure in Blanco, Comal, Hays, and Kendall Counties, Texas at various scales. The scope of the larger work, which supersedes Clark and others (2016), and this accompanying data release is focused on the geologic framework, hydrostratigraphy, and ichnology of the rocks that contain the Edwards and Trinity aquifers in the Blanco, Payton and Rough Hollow 7.5-minute quadrangles in Blanco, Comal, Hays, and Kendall Counties, Texas.", "distribution": [{"@type": "dcat:Distribution", "accessURL": "https://doi.org/10.5066/P1AI8RDI", "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.67b91d7dd34e1a2e835b86db.xml", "format": "XML", "mediaType": "text/xml", "title": "Original Metadata"}], "identifier": "http://datainventory.doi.gov/id/dataset/USGS_67b91d7dd34e1a2e835b86db", "keyword": ["Balcones fault zone", "Blanco", "Blanco County", "Blanco Quadrangle", "Blanco River", "Canyon Lake", "Comal County", "Corbula bed", "Cow Creek Limestone", "Cretaceous", "Edwards Group", "Edwards Plateau", "Edwards aquifer", "Fort Terrett Formation", "Glen Rose Limestone", "Hays County", "Kendall County", "Little Blanco River", "Payton Quadrangle", "Rough Hollow Quadrangle", "Texas", "Trinity Group", "Trinity aquifer", "USA", "USGS:67b91d7dd34e1a2e835b86db", "United States", "data integration", "digitization", "faulting", "fracture", "geography", "geologic contacts", "geologic framework", "geologic maps", "geology", "geoscientificInformation", "geospatial analysis", "geospatial datasets", "groundwater", "hydrogeology", "hydrostratigraphy", "ichnofossils", "ichnology", "imageryBaseMapsEarthCover", "karst", "land surface characteristics", "lithostratigraphy", "porosity", "stratigraphic thickness", "stratigraphy", "surficial geologic units"], "modified": "2026-04-24T00:00:00Z", "publisher": {"@type": "org:Organization", "name": "U.S. Geological Survey"}, "spatial": "-98.5009, 30.0002, -98.1242, 30.1252", "theme": ["geospatial"], "title": "Geospatial dataset for the geologic framework, hydrostratigraphy, and ichnology of the Blanco, Payton, and Rough Hollow 7.5-minute quadrangles, Blanco, Comal, Hays, and Kendall Counties, Texas"}