Item talk:Q71126
From geokb
{
"USGS Publications Warehouse": { "schema": { "@context": "https://schema.org", "@type": "CreativeWork", "additionalType": "USGS Numbered Series", "name": "Elastic properties of overpressured and unconsolidated sediments", "identifier": [ { "@type": "PropertyValue", "propertyID": "USGS Publications Warehouse IndexID", "value": "b2214", "url": "https://pubs.usgs.gov/publication/b2214" }, { "@type": "PropertyValue", "propertyID": "USGS Publications Warehouse Internal ID", "value": 53149 }, { "@type": "PropertyValue", "propertyID": "DOI", "value": "10.3133/b2214", "url": "https://doi.org/10.3133/b2214" } ], "inLanguage": "en", "isPartOf": [ { "@type": "CreativeWorkSeries", "name": "Bulletin" } ], "datePublished": "2003", "dateModified": "2012-02-02", "abstract": "Differential pressure affects elastic velocities and Poisson?s ratio of sediments in such a way that velocities increase as differential pressure increases. Overpressured zones in sediments can be detected by observing an increase in Poisson?s ratio with a corresponding drop in elastic velocities. In highly overpressured sands, such as shallow water flow sands, the P-to S-wave velocity ratio (Vp/Vs) is very high, on the order of 10 or higher, due to the unconsolidated and uncemented nature of sediments. In order to predict elastic characteristics of highly overpressured sands, Biot-Gassmann theory by Lee (BGTL) is used with a variable exponent n that depends on differential pressure and the degree of consolidation/compaction. The exponent n decreases as differential pressure and the degree of consolidation increases, and, as n decreases, velocity increases and Vp/Vs decreases. The predicted velocity ratio by BGTL agrees well with the measured velocity ratio at low differential pressure for unconsolidated sediments.", "description": "10 p.", "publisher": { "@type": "Organization", "name": "U.S. Geological Survey" }, "author": [ { "@type": "Person", "name": "Lee, Myung W. mlee@usgs.gov", "givenName": "Myung W.", "familyName": "Lee", "email": "mlee@usgs.gov", "affiliation": [ { "@type": "Organization", "name": "Central Energy Resources Science Center", "url": "https://www.usgs.gov/centers/central-energy-resources-science-center" } ] } ] } }, "OpenAlex": { "abstract_inverted_index": { "Differential": [ 0 ], "pressure": [ 1, 19, 103, 115, 147 ], "affects": [ 2 ], "elastic": [ 3, 40, 81 ], "velocities": [ 4, 15 ], "and": [ 5, 72, 104, 116, 128 ], "Poisson?s": [ 6, 33 ], "ratio": [ 7, 34, 56, 134, 143 ], "of": [ 8, 64, 75, 83, 107, 119 ], "sediments": [ 9, 24 ], "in": [ 10, 23, 32, 39 ], "such": [ 11, 46 ], "a": [ 12, 36, 95 ], "way": [ 13 ], "that": [ 14, 99 ], "increase": [ 16, 31 ], "as": [ 17, 47, 113, 123 ], "differential": [ 18, 102, 114, 146 ], "increases.": [ 20 ], "Overpressured": [ 21 ], "zones": [ 22 ], "can": [ 25 ], "be": [ 26 ], "detected": [ 27 ], "by": [ 28, 89, 135 ], "observing": [ 29 ], "an": [ 30 ], "with": [ 35, 94, 139 ], "corresponding": [ 37 ], "drop": [ 38 ], "velocities.": [ 41 ], "In": [ 42, 77 ], "highly": [ 43, 84 ], "overpressured": [ 44, 85 ], "sands,": [ 45, 51, 86 ], "shallow": [ 48 ], "water": [ 49 ], "flow": [ 50 ], "the": [ 52, 62, 70, 105, 117, 140 ], "P-to": [ 53 ], "S-wave": [ 54 ], "velocity": [ 55, 126, 133, 142 ], "(Vp/Vs)": [ 57 ], "is": [ 58, 92 ], "very": [ 59 ], "high,": [ 60 ], "on": [ 61, 101 ], "order": [ 63, 78 ], "10": [ 65 ], "or": [ 66 ], "higher,": [ 67 ], "due": [ 68 ], "to": [ 69, 79 ], "unconsolidated": [ 71, 149 ], "uncemented": [ 73 ], "nature": [ 74 ], "sediments.": [ 76, 150 ], "predict": [ 80 ], "characteristics": [ 82 ], "Biot-Gassmann": [ 87 ], "theory": [ 88 ], "Lee": [ 90 ], "(BGTL)": [ 91 ], "used": [ 93 ], "variable": [ 96 ], "exponent": [ 97, 110 ], "n": [ 98, 111, 124 ], "depends": [ 100 ], "degree": [ 106, 118 ], "consolidation/compaction.": [ 108 ], "The": [ 109, 131 ], "decreases": [ 112 ], "consolidation": [ 120 ], "increases,": [ 121 ], "and,": [ 122 ], "decreases,": [ 125 ], "increases": [ 127 ], "Vp/Vs": [ 129 ], "decreases.": [ 130 ], "predicted": [ 132 ], "BGTL": [ 136 ], "agrees": [ 137 ], "well": [ 138 ], "measured": [ 141 ], "at": [ 144 ], "low": [ 145 ], "for": [ 148 ] }, "apc_list": null, "apc_paid": null, "authorships": [ { "author_position": "first", "author": { "id": "https://openalex.org/A5038481165", "display_name": "Myung W. Lee", "orcid": null }, "institutions": [], "countries": [], "is_corresponding": true, "raw_author_name": "Myung W. Lee", "raw_affiliation_strings": [], "affiliations": [] } ], "best_oa_location": null, "biblio": { "volume": null, "issue": null, "first_page": null, "last_page": null }, "citation_normalized_percentile": { "value": 0.952381, "is_in_top_1_percent": false, "is_in_top_10_percent": true }, "cited_by_api_url": "https://api.openalex.org/works?filter=cites:W1579356854", "cited_by_count": 14, "cited_by_percentile_year": { "min": 84, "max": 85 }, "concepts": [ { "id": "https://openalex.org/c2776014549", "wikidata": "https://www.wikidata.org/wiki/Q3050847", "display_name": "Consolidation (business)", "level": 2, "score": 0.7487267, "qid": null }, { "id": "https://openalex.org/c127313418", "wikidata": "https://www.wikidata.org/wiki/Q1069", "display_name": "Geology", "level": 0, "score": 0.7296865, "qid": "Q158984" }, { "id": "https://openalex.org/c2780012869", "wikidata": "https://www.wikidata.org/wiki/Q1977085", "display_name": "Differential stress", "level": 3, "score": 0.70672935, "qid": null 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Inversion in Geophysics", "score": 0.9997, "subfield": { "id": "https://openalex.org/subfields/1908", "display_name": "Geophysics" }, "field": { "id": "https://openalex.org/fields/19", "display_name": "Earth and Planetary Sciences" }, "domain": { "id": "https://openalex.org/domains/3", "display_name": "Physical Sciences" } }, { "id": "https://openalex.org/T11757", "display_name": "High-Resolution Seismic Noise Tomography", "score": 0.9989, "subfield": { "id": "https://openalex.org/subfields/1908", "display_name": "Geophysics" }, "field": { "id": "https://openalex.org/fields/19", "display_name": "Earth and Planetary Sciences" }, "domain": { "id": "https://openalex.org/domains/3", "display_name": "Physical Sciences" } }, { "id": "https://openalex.org/T10233", "display_name": "Soil Mechanics in Geotechnical Engineering Practice", "score": 0.9985, "subfield": { "id": "https://openalex.org/subfields/2205", "display_name": "Civil and Structural Engineering" }, "field": { "id": 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