{"accessLevel": "public", "bureauCode": ["010:12"], "contactPoint": {"@type": "vcard:Contact", "fn": "Neil Terry", "hasEmail": "mailto:nterry@usgs.gov"}, "description": "A total of 119 passive seismic soundings were collected with Tromino (MoHo s.r.l.) 3-axis seismometers in the Fountain Creek area to partially refine alluvial aquifer thickness (depth to bedrock) estimates, particularly over known or suspected paleochannels.  Data were collected during June 21-24, 2021 with a team of 4-5 people, each equipped with a Tromino Blu or Tromino 3G passive seismometer.  A subset of the data included measurements made for shear velocity calibration; this included data collected at 10 well sites where depth to bedrock was available from driller's logs, and 3 sites above cutbanks where bedrock outcropped and the thickness of alluvial sediments could be directly measured. Data were processed using a publicly available batch R processing script (Terry, 2022).  \nIn picking depths from the 119 measurements for alluvial aquifer thickness, roughly 30% were deemed unusable, 14% were picked with low confidence, 38% were picked with medium confidence, and 18% were picked with high confidence.  Calibration data suggested a shear wave velocity of 195 meters per second.  Using this value, estimated alluvial aquifer thicknesses ranged from 1.7 to 26.8 meters.", "distribution": [{"@type": "dcat:Distribution", "accessURL": "https://doi.org/10.5066/P9H3D9JG", "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.615cb55ed34e7b019242b8ff.xml", "format": "XML", "mediaType": "text/xml", "title": "Original Metadata"}], "identifier": "http://datainventory.doi.gov/id/dataset/USGS_615cb55ed34e7b019242b8ff", "keyword": ["Colorado", "Fountain Creek", "USGS:615cb55ed34e7b019242b8ff", "environment", "geophysics", "geoscientificInformation", "inlandWaters"], "modified": "2022-01-13T00:00:00Z", "publisher": {"@type": "org:Organization", "name": "U.S. Geological Survey"}, "spatial": "-104.7931, 38.6533, -104.6523, 38.7825", "theme": ["geospatial"], "title": "Passive seismic (HVSR) data from Fountain Creek, CO"}