Matches in SemOpenAlex for { <https://semopenalex.org/work/W73694744> ?p ?o ?g. }
Showing items 1 to 65 of
65
with 100 items per page.
- W73694744 endingPage "34" @default.
- W73694744 startingPage "25" @default.
- W73694744 abstract "A petrologic and provenance study of the lower Paleocene Tullock Member of the Fort Union Formation in the Powder River Basin (PRB) indicates that Laramide uplifts to the west and south of the PRB were emergent and shedding detritus by early Paleocene time. This conclusion is based largely on the presence of abundant first-cycle carbonate clasts in the northwestern PRB and metamorphic and igneous clasts and labile heavy-mineral grains in the Tullock throughout the basin. The proximity and composition of the north end of the Bighorn uplift strongly suggest that is was the source for carbonate, igneous, and metamorphic rock fragments in northwestern Tullock outcrops. Lack of conglomeratic material in northwestern outcrops, however, indicates that the Bighorn uplift was not yet well developed and perhaps the Pryor Mountains uplift farther to the west was contributing some detritus. In the southern PRB, abundant labile heavy minerals and igneous rock fragments in the Tullock indicate that other uplifts to the west and south (i.e. Granite Mountains, Washakie, Owl Creek, and Laramie uplifts) had also started to rise by early Paleocene time. Paleocurrent directions show that Tullock streams flowed generally east-northeast across a gently sloping alluvial plain toward the retreating Cannonball sea, suggestingmore » that the Black Hills were not yet emergent and, as a result, the basin had not fully developed. Our conclusions are supported by recent fission-track, palynological, and sedimentological studies that indicate that Laramide-style forland deformation in southwestern Montana began in late Cenomanian to Turonian time and migrated through central Wyoming to the Colorado Front Range by late Maastrichtian time. 37 refs., 8 figs., 3 tab.« less" @default.
- W73694744 created "2016-06-24" @default.
- W73694744 creator A5024197207 @default.
- W73694744 creator A5082601687 @default.
- W73694744 date "1993-01-01" @default.
- W73694744 modified "2023-09-23" @default.
- W73694744 title "Provenance of the Tullock Member of the Fort Union Formation, Powder River Basin, Wyoming and Montana: Evidence for Early Paleocene Laramide Uplift" @default.
- W73694744 hasPublicationYear "1993" @default.
- W73694744 type Work @default.
- W73694744 sameAs 73694744 @default.
- W73694744 citedByCount "1" @default.
- W73694744 crossrefType "journal-article" @default.
- W73694744 hasAuthorship W73694744A5024197207 @default.
- W73694744 hasAuthorship W73694744A5082601687 @default.
- W73694744 hasConcept C127313418 @default.
- W73694744 hasConcept C138170599 @default.
- W73694744 hasConcept C151730666 @default.
- W73694744 hasConcept C169212394 @default.
- W73694744 hasConcept C17409809 @default.
- W73694744 hasConcept C2780049196 @default.
- W73694744 hasConcept C2781394513 @default.
- W73694744 hasConcept C42787717 @default.
- W73694744 hasConcept C63376196 @default.
- W73694744 hasConcept C6494504 @default.
- W73694744 hasConceptScore W73694744C127313418 @default.
- W73694744 hasConceptScore W73694744C138170599 @default.
- W73694744 hasConceptScore W73694744C151730666 @default.
- W73694744 hasConceptScore W73694744C169212394 @default.
- W73694744 hasConceptScore W73694744C17409809 @default.
- W73694744 hasConceptScore W73694744C2780049196 @default.
- W73694744 hasConceptScore W73694744C2781394513 @default.
- W73694744 hasConceptScore W73694744C42787717 @default.
- W73694744 hasConceptScore W73694744C63376196 @default.
- W73694744 hasConceptScore W73694744C6494504 @default.
- W73694744 hasIssue "1" @default.
- W73694744 hasLocation W736947441 @default.
- W73694744 hasOpenAccess W73694744 @default.
- W73694744 hasPrimaryLocation W736947441 @default.
- W73694744 hasRelatedWork W1504320077 @default.
- W73694744 hasRelatedWork W1532271370 @default.
- W73694744 hasRelatedWork W1575757007 @default.
- W73694744 hasRelatedWork W1625036739 @default.
- W73694744 hasRelatedWork W184280189 @default.
- W73694744 hasRelatedWork W2061533231 @default.
- W73694744 hasRelatedWork W2071286672 @default.
- W73694744 hasRelatedWork W2093158422 @default.
- W73694744 hasRelatedWork W2109444804 @default.
- W73694744 hasRelatedWork W2129613431 @default.
- W73694744 hasRelatedWork W2142475041 @default.
- W73694744 hasRelatedWork W2151191370 @default.
- W73694744 hasRelatedWork W2170479132 @default.
- W73694744 hasRelatedWork W2206598466 @default.
- W73694744 hasRelatedWork W2242903004 @default.
- W73694744 hasRelatedWork W2261339866 @default.
- W73694744 hasRelatedWork W2270515931 @default.
- W73694744 hasRelatedWork W231983613 @default.
- W73694744 hasRelatedWork W2560504773 @default.
- W73694744 hasRelatedWork W3150388056 @default.
- W73694744 hasVolume "30" @default.
- W73694744 isParatext "false" @default.
- W73694744 isRetracted "false" @default.
- W73694744 magId "73694744" @default.
- W73694744 workType "article" @default.