Item talk:Q270034

{

 "USGS Publications Warehouse": {
   "@context": "https://schema.org",
   "@type": "Article",
   "additionalType": "Journal Article",
   "name": "Authigenic feldspar as an indicator of paleo-rock/water interactions in Permian carbonates of the Northern Calcareous Alps, Austria",
   "identifier": [
     {
       "@type": "PropertyValue",
       "propertyID": "USGS Publications Warehouse IndexID",
       "value": "70018759",
       "url": "https://pubs.usgs.gov/publication/70018759"
     },
     {
       "@type": "PropertyValue",
       "propertyID": "USGS Publications Warehouse Internal ID",
       "value": 70018759
     },
     {
       "@type": "PropertyValue",
       "propertyID": "DOI",
       "value": "10.1306/D42682D9-2B26-11D7-8648000102C1865D",
       "url": "https://doi.org/10.1306/D42682D9-2B26-11D7-8648000102C1865D"
     },
     {
       "@type": "PropertyValue",
       "propertyID": "ISSN",
       "value": "1073130X"
     }
   ],
   "journal": {
     "@type": "Periodical",
     "name": "Journal of Sedimentary Research",
     "volumeNumber": "66",
     "issueNumber": "1"
   },
   "inLanguage": "en",
   "isPartOf": [
     {
       "@type": "CreativeWorkSeries",
       "name": "Journal of Sedimentary Research"
     }
   ],
   "datePublished": "1996",
   "dateModified": "2024-05-15",
   "abstract": "Dolostones interbedded with Upper Permian evaporites at the base of the Northern Calcareous Alps contain abundant authigenic K-feldspar. Two petrographically, structurally, and isotopically distinct generations of K-feldspar can be distinguished: crystals composed of an inclusion. rich core and a clear rim, and optically unzoned, transparent crystals. Both feldspar types have essentially identical K-feldspar end-member compositions with >= 99.5 mole % Or component. Low oxygen isotope ratios (+16.1 per thousand to +18.1 per thousand SMOW) suggest precipitation from\u00a018\u00a0O-enriched, saline fluids at temperatures in excess of nearly equal 140 degrees C.\u00a040\u00a0Ar/\u00a039\u00a0Ar plateau-age spectra of five samples range from 145 + or - 1 to 144 + or -1 Ma (Early Berriasian) and suggest that both types of feldspar were formed within an interval that did not exceed nearly equal 2 m.y. Rb/Sr model ages range from 152 to 140 Ma, assuming that the burial diagenetic regime was buffered with respect to strontium by the associated marine Permian evaporites. Authigenic K-feldspar records two distinct events of hot brine flow, most likely triggered by tectonic movements (detachment) and by an increase in the subsurface temperature in response to thrust loading.",
   "description": "8 p.",
   "publisher": {
     "@type": "Organization",
     "name": "Society for Sedimentary Geology"
   },
   "author": [
     {
       "@type": "Person",
       "name": "Spotl, C.",
       "givenName": "C.",
       "familyName": "Spotl"
     },
     {
       "@type": "Person",
       "name": "Kralik, M.",
       "givenName": "M.",
       "familyName": "Kralik"
     },
     {
       "@type": "Person",
       "name": "Kunk, Michael J. mkunk@usgs.gov",
       "givenName": "Michael J.",
       "familyName": "Kunk",
       "email": "mkunk@usgs.gov",
       "identifier": {
         "@type": "PropertyValue",
         "propertyID": "ORCID",
         "value": "0000-0003-4424-7825",
         "url": "https://orcid.org/0000-0003-4424-7825"
       },
       "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"
         }
       ]
     }
   ]
 }

}