Item talk:Q255714

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   "@type": "Article",
   "additionalType": "Journal Article",
   "name": "Timing of Cenozoic extension in the southern Stillwater Range and Dixie Valley, Nevada",
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       "value": "70214480",
       "url": "https://pubs.usgs.gov/publication/70214480"
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       "value": 70214480
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       "value": "10.1029/2019TC005757",
       "url": "https://doi.org/10.1029/2019TC005757"
     }
   ],
   "journal": {
     "@type": "Periodical",
     "name": "Tectonics",
     "volumeNumber": "39",
     "issueNumber": "3"
   },
   "inLanguage": "en",
   "isPartOf": [
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       "name": "Tectonics"
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   "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": {
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     "name": "American Geophysical Union"
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       "name": "Colgan, Joseph jcolgan@usgs.gov",
       "givenName": "Joseph",
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       "email": "jcolgan@usgs.gov",
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           "name": "Geology, Minerals, Energy, and Geophysics Science Center",
           "url": "https://www.usgs.gov/centers/gmeg"
         },
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           "name": "Geosciences and Environmental Change Science Center",
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       "name": "Johnstone, Samuel",
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           "name": "Geology, Geophysics, and Geochemistry Science Center",
           "url": "https://www.usgs.gov/centers/gggsc"
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       "@type": "Person",
       "name": "Shuster, David L.",
       "givenName": "David L.",
       "familyName": "Shuster",
       "affiliation": [
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           "name": "University of California, Berkeley"
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