Item talk:Q263062
From geokb
{
"USGS Publications Warehouse": { "@context": "https://schema.org", "@type": "CreativeWork", "additionalType": "USGS Numbered Series", "name": "Preliminary map of the surface rupture from the August 9, 2020, Mw 5.1 earthquake near Sparta, North Carolina\u2014The Little River fault and other possible coseismic features", "identifier": [ { "@type": "PropertyValue", "propertyID": "USGS Publications Warehouse IndexID", "value": "ofr20231074", "url": "https://pubs.usgs.gov/publication/ofr20231074" }, { "@type": "PropertyValue", "propertyID": "USGS Publications Warehouse Internal ID", "value": 70249367 }, { "@type": "PropertyValue", "propertyID": "DOI", "value": "10.3133/ofr20231074", "url": "https://doi.org/10.3133/ofr20231074" } ], "inLanguage": "en", "isPartOf": [ { "@type": "CreativeWorkSeries", "name": "Open-File Report" } ], "datePublished": "2023", "dateModified": "2023-10-13", "abstract": "This publication is a preliminary map and geodatabase of the coseismic surface rupture and other coseismic features generated from the August 9, 2020, Mw 5.1 earthquake near Sparta, North Carolina. Geologic mapping facilitated by analysis of post-earthquake quality level 0 to 1 lidar, document the coseismic surface rupture, named the Little River fault, and other coseismic features. The Little River fault is traced for approximately 4 kilometers and cuts the regional Paleozoic fabric (mean foliation, 063\u00b0/57\u00b0), and the dominant strike of joint sets are 0\u00b0\u201310\u00b0, 130\u00b0\u2013150\u00b0, and 320\u00b0\u2013340\u00b0. Individual fault strands occur in an en echelon pattern within an approximately 10-meter-wide zone. Trenches across the Little River fault document a thrust fault oriented 110\u00b0/45\u00b0 with at least 10 centimeters (cm) of displacement. The Little River fault is marked by a flexure or scarp with a height of 5\u201330 cm and a local maximum height of 50 cm. Southwest-side-up displacement is consistent along the fault and indicates thrust kinematics. The strike of the Little River fault changes from 110\u00b0 to 130\u00b0 near Duncan Farm where it crosses Chestnut Grove Church Road (NC Rt. 1426). Although the surface expression of the fault terminates and (or) is imperceptible at both ends, deformation is still clear in residual surface maps showing the change between pre- and post-earthquake lidar elevations. Other coseismic features documented are rockfalls, ground cracks, fissures, lateral spreading on a sandbar, and mass-wasting scarps; several possible faults that were identified from lidar analyses strike E-W and oblique to the Little River fault.", "description": "Sheet: 47.89 x 19.47 inches; Data Release", "publisher": { "@type": "Organization", "name": "U.S. Geological Survey" }, "author": [ { "@type": "Person", "name": "Merschat, Arthur J. amerschat@usgs.gov", "givenName": "Arthur J.", "familyName": "Merschat", "email": "amerschat@usgs.gov", "identifier": { "@type": "PropertyValue", "propertyID": "ORCID", "value": "0000-0002-9314-4067", "url": "https://orcid.org/0000-0002-9314-4067" }, "affiliation": [ { "@type": "Organization", "name": "Eastern Geology and Paleoclimate Science Center", "url": "https://www.usgs.gov/centers/florence-bascom-geoscience-center" }, { "@type": "Organization", "name": "Florence Bascom Geoscience Center", "url": "https://www.usgs.gov/centers/florence-bascom-geoscience-center" } ] }, { "@type": "Person", "name": "Carter, Mark W. mcarter@usgs.gov", "givenName": "Mark W.", "familyName": "Carter", "email": "mcarter@usgs.gov", "identifier": { "@type": "PropertyValue", "propertyID": "ORCID", "value": "0000-0003-0460-7638", "url": "https://orcid.org/0000-0003-0460-7638" }, "affiliation": [ { "@type": "Organization", "name": "Eastern Geology and Paleoclimate Science Center", "url": "https://www.usgs.gov/centers/florence-bascom-geoscience-center" }, { "@type": "Organization", "name": "Eastern Mineral and Environmental Resources Science Center", "url": "https://www.usgs.gov/centers/geology-energy-and-minerals-science-center" }, { "@type": "Organization", "name": "Florence Bascom Geoscience Center", "url": "https://www.usgs.gov/centers/florence-bascom-geoscience-center" } ] } ], "funder": [ { "@type": "Organization", "name": "Eastern Geographic Science Center", "url": "https://www.usgs.gov/centers/pwrc" 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