Item talk:Q255714
From geokb
{
"USGS Publications Warehouse": { "@context": "https://schema.org", "@type": "Article", "additionalType": "Journal Article", "name": "Timing of Cenozoic extension in the southern Stillwater Range and Dixie Valley, Nevada", "identifier": [ { "@type": "PropertyValue", "propertyID": "USGS Publications Warehouse IndexID", "value": "70214480", "url": "https://pubs.usgs.gov/publication/70214480" }, { "@type": "PropertyValue", "propertyID": "USGS Publications Warehouse Internal ID", "value": 70214480 }, { "@type": "PropertyValue", "propertyID": "DOI", "value": "10.1029/2019TC005757", "url": "https://doi.org/10.1029/2019TC005757" } ], "journal": { "@type": "Periodical", "name": "Tectonics", "volumeNumber": "39", "issueNumber": "3" }, "inLanguage": "en", "isPartOf": [ { "@type": "CreativeWorkSeries", "name": "Tectonics" } ], "datePublished": "2020", "dateModified": "2020-09-28", "abstract": "The Dixie Valley fault bounds the east side of the Stillwater Range in west\u2010central Nevada and last ruptured in 1954. Offset basalts indicate that slip began more recently than ~14 Ma, and prior work has interpreted the southern segment as an active low\u2010angle normal fault. Oligocene igneous rocks in the southern Stillwater Range were steeply tilted during large\u2010magnitude extension prior to ~14 Ma. To refine the timing of early extension and the onset of slip on the Dixie Valley fault, we collected two transects of samples for apatite fission track, apatite and zircon (U\u2010Th)/He (AHe and ZHe), and apatite\u00a04He/3He thermochronometry. Apatite fission track ages from the Oligocene IXL pluton indicate rapid cooling ~18\u201314 Ma, and AHe and ZHe ages from the Cretaceous La Plata Canyon pluton indicate rapid cooling ~16\u201319 Ma. We interpret these data to record cooling during rapid extension. AHe ages from the IXL pluton are ~6\u20138 Ma and record cooling during slip on the Dixie Valley fault. We modeled these ages and\u00a04He/3He spectra from one sample as the result of cooling during exhumation of a tilted fault block at a constant extension rate. The model predicts slip on the Dixie Valley fault beginning ~8 Ma. Although it does not constrain the initial fault dip, the model illustrates how a low\u2010angle fault requires a higher extension rate to reproduce cooling ages. Consequently, we prefer a high\u2010angle southern Dixie Valley fault for strain compatibility with the high\u2010angle northern segment.", "description": "e2019TC005757, 18 p.", "publisher": { "@type": "Organization", "name": "American Geophysical Union" }, "author": [ { "@type": "Person", "name": "Colgan, Joseph jcolgan@usgs.gov", "givenName": "Joseph", "familyName": "Colgan", "email": "jcolgan@usgs.gov", "identifier": { "@type": "PropertyValue", "propertyID": "ORCID", "value": "0000-0001-6671-1436", "url": "https://orcid.org/0000-0001-6671-1436" }, "affiliation": [ { "@type": "Organization", "name": "Geology, Minerals, Energy, and Geophysics Science Center", "url": "https://www.usgs.gov/centers/gmeg" }, { "@type": "Organization", "name": "Geosciences and Environmental Change Science Center", "url": "https://www.usgs.gov/centers/geosciences-and-environmental-change-science-center" } ] }, { "@type": "Person", "name": "Johnstone, Samuel", "givenName": "Samuel", "familyName": "Johnstone", "identifier": { "@type": "PropertyValue", "propertyID": "ORCID", "value": "0000-0002-3945-2499", "url": "https://orcid.org/0000-0002-3945-2499" }, "affiliation": [ { "@type": "Organization", "name": "Geosciences and Environmental Change Science Center", "url": "https://www.usgs.gov/centers/geosciences-and-environmental-change-science-center" }, { "@type": "Organization", "name": "Geology, Geophysics, and Geochemistry Science Center", "url": "https://www.usgs.gov/centers/gggsc" } ] }, { "@type": "Person", "name": "Shuster, David L.", "givenName": "David L.", "familyName": "Shuster", "affiliation": [ { "@type": "Organization", "name": "University of California, Berkeley" } ] } ], "funder": [ { "@type": "Organization", "name": "Geosciences and Environmental Change Science Center", "url": "https://www.usgs.gov/centers/geosciences-and-environmental-change-science-center" } ], "spatialCoverage": [ { "@type": "Place", "additionalType": "country", "name": "United States", "url": "https://geonames.org/4074035" }, { "@type": "Place", "additionalType": "state", "name": "Nevada" }, { "@type": "Place", "additionalType": "unknown", "name": "Southern Stillwater Range" }, { "@type": "Place", "additionalType": "unknown", "name": "Dixie Valley", "url": "https://geonames.org/5343298" }, { "@type": "Place", "geo": [ { "@type": "GeoShape", "additionalProperty": { "@type": "PropertyValue", "name": "GeoJSON", "value": { "type": "FeatureCollection", "features": [ { "type": "Feature", "properties": {}, "geometry": { "type": "Polygon", "coordinates": [ [ [ -118.740234375, 38.42777351132902 ], [ -117.0703125, 38.42777351132902 ], [ -117.0703125, 40.413496049701955 ], [ -118.740234375, 40.413496049701955 ], [ -118.740234375, 38.42777351132902 ] ] ] } } ] } } }, { "@type": "GeoCoordinates", "latitude": 39.42063478051549, "longitude": -117.90527343749999 } ] } ] }
}