Item talk:Q306201

{

 "USGS Publications Warehouse": {
   "@context": "https://schema.org",
   "@type": "Article",
   "additionalType": "Journal Article",
   "name": "Structural architecture of the central Brooks Range foothills, Alaska",
   "identifier": [
     {
       "@type": "PropertyValue",
       "propertyID": "USGS Publications Warehouse IndexID",
       "value": "70145538",
       "url": "https://pubs.usgs.gov/publication/70145538"
     },
     {
       "@type": "PropertyValue",
       "propertyID": "USGS Publications Warehouse Internal ID",
       "value": 70145538
     }
   ],
   "journal": {
     "@type": "Periodical",
     "name": "AAPG Bulletin",
     "volumeNumber": "86",
     "issueNumber": null
   },
   "inLanguage": "en",
   "isPartOf": [
     {
       "@type": "CreativeWorkSeries",
       "name": "AAPG Bulletin"
     }
   ],
   "datePublished": "2002",
   "dateModified": "2015-04-07",
   "abstract": "Five structural levels underlie the Brooks Range foothills, from lowest to highest: (1) autochthon, at a depth of ~9 km; (2) Endicott Mountains allochthon (EMA), thickest under the northern Brooks Range (>15 km) and wedging out northward above the autochthon; (3) higher allochthons (HA), with a composite thickness of 1.5+ km, wedging out northward at or beyond the termination of EMA; (4) Aptian-Albian Fortress Mountain Formation (FM), deposited unconformably on deformed EMA and HA and thickening northward into a >7-km-thick succession of deformed turbidites (Torok Formation); (5) gently folded Albian-Cenomanian deltaic deposits (Nanushuk Group). The dominant faulting pattern in levels 2-3 is thin-skinned thrusting and thrust-related folds formed before deposition of Cretaceous strata. These structures are cut by younger steeply south-dipping reverse faults that truncate and juxtapose structural levels 1-4 and expose progressively deeper structural levels to the south. Structural levels 4-5 are juxtaposed along a north-dipping zone of south-vergent folds and thrusts. Stratigraphic and fission-track age data suggest a kinematic model wherein the foothills belt was formed first, by thrusting of HA and EMA as deformational wedges onto the regionally south-dipping authochon at 140-120Ma. After deposition of FM and Torok during mid-Cretaceous hinterland extension and uplift, a second episode of contractional deformation at 60 Ma shortened the older allochthonous deformational wedges (EMA, HA) and overlying strata on north-vergent reverse faults. To the north, where the allochthons wedge out, shortening caused duplexing in the Torok and development of a triangle zone south of the Tuktu escarpment.",
   "description": "1 p.",
   "publisher": {
     "@type": "Organization",
     "name": "American Association of Petroleum Geologists"
   },
   "author": [
     {
       "@type": "Person",
       "name": "Moore, Thomas E. tmoore@usgs.gov",
       "givenName": "Thomas E.",
       "familyName": "Moore",
       "email": "tmoore@usgs.gov",
       "identifier": {
         "@type": "PropertyValue",
         "propertyID": "ORCID",
         "value": "0000-0002-0878-0457",
         "url": "https://orcid.org/0000-0002-0878-0457"
       },
       "affiliation": [
         {
           "@type": "Organization",
           "name": "Geology, Minerals, Energy, and Geophysics Science Center",
           "url": "https://www.usgs.gov/centers/gmeg"
         }
       ]
     },
     {
       "@type": "Person",
       "name": "Potter, Christopher J. cpotter@usgs.gov",
       "givenName": "Christopher J.",
       "familyName": "Potter",
       "email": "cpotter@usgs.gov",
       "identifier": {
         "@type": "PropertyValue",
         "propertyID": "ORCID",
         "value": "0000-0002-2300-6670",
         "url": "https://orcid.org/0000-0002-2300-6670"
       },
       "affiliation": [
         {
           "@type": "Organization",
           "name": "Central Energy Resources Science Center",
           "url": "https://www.usgs.gov/centers/central-energy-resources-science-center"
         }
       ]
     },
     {
       "@type": "Person",
       "name": "O'Sullivan, Paul B.",
       "givenName": "Paul B.",
       "familyName": "O'Sullivan"
     }
   ]
 }

}