Item talk:Q248073
From geokb
{
"USGS Publications Warehouse": { "@context": "https://schema.org", "@type": "CreativeWork", "additionalType": "Conference Paper", "name": "Transient electromagnetic mapping of clay units in the San Luis Valley, Colorado", "identifier": [ { "@type": "PropertyValue", "propertyID": "USGS Publications Warehouse IndexID", "value": "70189023", "url": "https://pubs.usgs.gov/publication/70189023" }, { "@type": "PropertyValue", "propertyID": "USGS Publications Warehouse Internal ID", "value": 70189023 }, { "@type": "PropertyValue", "propertyID": "DOI", "value": "10.4133/1.3445428", "url": "https://doi.org/10.4133/1.3445428" } ], "inLanguage": "en", "datePublished": "2010", "dateModified": "2017-09-20", "abstract": "Transient\u00a0electromagnetic soundings were used to obtain information needed to refine hydrologic models of the San Luis Valley, Colorado. The soundings were able to map an aquitard called the blue clay that separates an unconfined surface aquifer from a deeper confined aquifer. The blue clay forms a conductor with an average resistivity of 6.9 ohm\u2010m. Above the conductor are found a mixture of gray clay and sand. The gray clay has an average resistivity of 21 ohm\u2010m, while the sand has a resistivity of greater than 100 ohm\u2010m. The large difference in resistivity of these units makes mapping them with a surface geophysical method relatively easy. The blue clay was deposited at the bottom of Lake Alamosa which filled most of the San Luis Valley during the Pleistocene. The geometry of the blue clay is influenced by a graben on the eastern side of the valley. The depth to the blue clay is greater over the graben. Along the eastern edge of valley the blue clay appears to be truncated by faults.", "description": "11 p.", "publisher": { "@type": "Organization", "name": "Society of Exploration Geophysicists" }, "author": [ { "@type": "Person", "name": "Fitterman, David V. dfitterman@usgs.gov", "givenName": "David V.", "familyName": "Fitterman", "email": "dfitterman@usgs.gov", "affiliation": [ { "@type": "Organization", "name": "Crustal Geophysics and Geochemistry Science Center", "url": "https://www.usgs.gov/centers/geology-energy-and-minerals-science-center" } ] }, { "@type": "Person", "name": "Grauch, V. J. S. tien@usgs.gov", "givenName": "V. J. S.", "familyName": "Grauch", "email": "tien@usgs.gov", "identifier": { "@type": "PropertyValue", "propertyID": "ORCID", "value": "0000-0002-0761-3489", "url": "https://orcid.org/0000-0002-0761-3489" }, "affiliation": [ { "@type": "Organization", "name": "Crustal Geophysics and Geochemistry Science Center", "url": "https://www.usgs.gov/centers/geology-energy-and-minerals-science-center" } ] } ], "funder": [ { "@type": "Organization", "name": "Crustal Geophysics and Geochemistry Science Center", "url": "https://www.usgs.gov/centers/geology-energy-and-minerals-science-center" } ], "spatialCoverage": [ { "@type": "Place", "additionalType": "country", "name": "United States", "url": "https://geonames.org/4074035" }, { "@type": "Place", "additionalType": "state", "name": "Colorado" }, { "@type": "Place", "additionalType": "unknown", "name": "San Luis Valley", "url": "https://geonames.org/5437695" } ] }, "OpenAlex": { "abstract_inverted_index": { "PreviousNext": [ 0 ], "No": [ 1 ], 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