Geology of a Part of Northwestern Uinta County, Wyoming

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Geology of a Part of Northwestern Uinta County, Wyoming GEOLOGYGEOLOGY OFOF A PARTPART OFOF NORTHWESTERNNORTHWESTERN UINTAUINTA COUNTY,COUNTY, WYOMINGWYOMING byby FrederickFrederick HustonHuston WingateWingate A thesithesiss submittesubmittedd ttoo ththee facultfacultyy ooff ththee UniversityUniversity ooff UtaUtahh iinn partiapartiall fulfillmenfulfillmentt ooff ththee requirementsrequirements foforr ththee degredegreee ofof }1asterMaster ooff ScienceScience DepartmenDepartmentt ooff GeologyGeology UniversitUniversityy ooff UtahUtah JuneJune,, 19611961 f,' I Ton 1\. ov fI LIBRAR-,~.:....Jl LCl.ll YJ. ~TT\T~P':..ITV ( ....,.L~ UNIVERSITU1 ''i J. '• .L-J.L 1,.fl"J.J....LY J.. O'-'"F UTAHUTAH This Thesis for the Master of Science Degree Frederick Huston Wingate has been approved Junel 1961 469251. ACKNOW'LEDG.EMENTSACKNOWLEDGEiMTS TheThe writerwriter wisheswishes toto expressexpress sinceresincere appreciationappreciation toto Dr.Dr. A.A. J.J. Eardley,Eardley, ofof thethe UniversityUniversity ofof Utah,Utah, whowho suggestedsuggested thethe problem,problem, andand toto Dr.Dr. wm.Wm L.L. Stokes,Stokes, Dr.Dr. D.D. J.J. Jones,Jones, andand Dr.Dr. N.M. C.C. Williams,Williams, ofof thethe UniversityUniversity ofof Utah,Utah, torfor criticismcriticism ofof thethe manuscript.manuscript. GratitudeGratitude isis furtherfurther tenderedtendered JerryJerry OdekirkOdekirk forfor preparationpreparation ofof thithinn sectioll8sections andand HelmutHelmut DoellingDoelling forfor thethe draftingdrafting ofof illustrationsillustrations andand map3.maps. TheThe writerwriter wisheswishes toto thankthank hishis wifewife forfor herher assistanceassistance inin thethe fieldfield andand typingtyping ofof thethe manuscript.manuscript. CONTENTCONTENTSS Page AbsAbstract·t ract # ••••••••••••••••••••••••••••••••••••••••••••••••••••••• ••#•#*»*•••*••••#•••••••*•«•••••*•••••••••#*«»*•*•••*• v IntroductioInt roductionn LocatioLocationn anandd accessibilityaccessibility.•••••••«»•»*••»••«*•••«»•»•*•••••••••••••••••••••••••••••••••• • 1 PurposPurposee anandd scopescope,........................a.....*....*.... •••••••••••••••••••••••••••••••••••••••••. 3 'WO 0 •••••••••••••••••••••••••••••••• FielFieldd workrIc. " ..............#.............................................. :3 Geography................................................Geography •••••••••••••••••••••••••••••••••••••••••••••••••. 4- TopographTopographyy anandd drainage, •••••••••••••••••••••••••••••• 4 ClimatClimatee anandd vegetatiovegetationn ••••••••••••••••••••••••••••••• 4- LanLandd utilizationutilization,,...................................•••••••••••••••••••••••••••••••• G ••••. 5 PreviouPreviouss geologigeologicc worworkk •••••••••••••••••••••••••••••••••••• 5 RegionaRegionall geologygeology•••••••••••••••••••••••••••••••••••••••••• ea...............................«....•... 6 Stratigraphat ratigraphyy GeneralGeneral sta.tementstatement........................................ •••••••••••••••••••••••••••••••••••••••••. 8 CretaceouCretaceouss systemsystem.••*•••.•••..••...•••......*»•••..•••••••••••••••••••••••••••••••••••• a ••••••••••* S GannetGarulettt groupgroup....................................... ••••••••••••••••••••••••••••••••••••••••. 8 BearBear RiveRiverr formation. ••••••••••••••••••••••••••••••••• 14 Un.con.fonuity.Unconformity..........................*•....«....... o •••••••••••••• " ••••••••••••••••••••••••. 18 Coloradoan-MontananColoradoan-Montanan boundarboundaryy problemproblem. •••••••••••••••••. 20 TertiaryTertiary systemsystem.•••••••«••••.••.•••••••.•••*............. •••••••••••••••••••••••••••••••••••••••••••. 21 EvanstonEvans ton formation. ••••••••••••••••••••••••••••••••••• 21 WasatchWasatch formationformation................................... ••••••••••••••••••••••••••••••••••••. 29 Bridger3ridger (?(1)) formationformation............................... ••••••••••••••••••••••••••••••••. 35 FowkesFowkes formationformation (see(see nextnext heading)heading).. ••••••••••••••••••. 40 FowkesFowkes formationformation Type'^yp® localitylocality••••••••••••••••••••••••••••••••••••••••••••• #............................................ 40 A.geA3...................................................... •••••••••••••••••••••••••••••••••••••••••••••••••••••••. 40 PetrographyPetrography.............................................. •••••••••••••••••••••••••••••••••••••• o ••••••••. 4.3 PetrographyPetrography ofof NorwoodNorwood tuff. ••••••••••••••••••••••••••••••• 56 CorrelationCorrelation.............................................. •••••••••••••••••••••••••••••••••••••••••••••••. 67 ConclusionsConclusions.............................................. •••••••••••••••••••••••••••••••••••••••••••••••. 70 Me8S11redMeasured SectionSection.....«..............*.«...............«.. ••••• e ••••••••••••••••••••••••••••••••••••. 70 1i i11i StructurStructuree faults••••••••••••••••••*•••Faults ••••••••••••••••••••••••••••••••••••••••••••••••••••••• • ••••••••••••*•••••••••<>••••••• 74 SalSaltt intrusioL~trusionn (1)(?)•••*«**••• ••••••••••••••••••••••••••••••••••••••••••• •«»«»•«•••«•••••••••••••••»«••• 77 FoldFoldss •••••••••••••••••••••••••••••••••••••••••••••••••••••••*•••*•••*••••••**••••• • ••••••••••••••••a*********.••• 80 LandLandslidess Hides ••••••••••••••••••••••••••••••••••••••••••••••••••*••*••••••••*•••**• ••.•••••••••••••••••••••••••••a 81 GeologiGeologicc hist,or'"Jhistory GeneraGenerall statementstatement•••••••••••••••••••••••••••••••••••*•••••• •••••••••••••••••••••••••••••••••••••••••••• 63 CretaceouCretaceouss periodperiod*•••••••••»*••*•***•••»**»••••*••*••«••**« •••••••••••••••••••••••••••••••••••••••••••• 83 TertiarTertiar.yy periodperiod••••••••••••••••••••*••••••*•••••••••*•••••• ••••••••••••••••••••••••••••••••••••••••••• 8.* 86 PaleoeenPaleoeel18e epoch.•••••••••*«**•••••••e::pocl1 ••••••••••••••••••••••••••••••••••••••••• 86 EocenEocenee epochepoch*••••••••••••••»•••••#•••»••••••»•#••••*•• •••••••••••••••••••••••••••••••••••••••••••• 87 GeomorphologyGeomorphology GeneraGenerall sstateuent%atemont• ••••••••••••••••••••••••••••••••••••••••••• ••••••••••••••••••••«<>•••••••••••••••••••• 90 DrainagD rai..nages pattemspatterns•«•••••••••••••••*»••«•«««••••••••«••••••• ...................... It •••••••••••• 111- ••••••••• 91 ~ldfo~a ••••••••••••••••••••••••••••••••••••••••••••••• •••• 91 EconomiEconomicc geologygeology GeneraGenerall statement....statement •••••••••••••••••••••••••••••••••••••••••••o ••».<.* 95 CoalCoal*••••••••••••••••••••••••••••••••••••••••••••o«»ee««»»e •••••••••••••••••••••••••••••••••••••••••••••••••••••• »0. 95 Oil••••••••••••••••••••••••••••••••••••••••••••••••••••••••Oil •••••••••••••••••••••••••••••••••••••••••••••••••••••••••o 96 HighwaHighwayy materialsmaterials••••••«•••«•••••••••••••••••••••••••••«•«» •••••••••••••••••••••••••••••••••••••••••••» 97 CeramicCeramic claysclays•••••••••••••••••••••••••••••••••••••••••••••• •••••••••••••••••••••••••••••••••••••••••••••••• 97 Bibliography*••***••*•••*••••*•*••»••**•*••*••••*••••**•*•••••»•Bibliography •••••••••••••••••••••••••••••••••••••••••••••••••••••• 98 ILLUSTRATIONSILLUSTRATIONS Page FigureFigure 1.1, ViewView shoY1ngshowing Gannett-BearGannett-Bear RiverRiver formationformation contactcontact neanearr UpperUpper NarrowNarrows...........................s .............. 1313 22.. ViewView showingshowing EvanstonEvanston formatioformationn overlapoverlap onon BeaBearr RiverRiver stratastrata southsouth ofof ShellShell Hollow..............Hollow.. 1919 3.3. ViewView showingshowing Wasatch-EvanstonWasatch-Evanston fonnationformation contactcontact easteast ooff Almy.................................Almy.•*••*•*•••«••••••••••••••••••••• 3030 4.4* DiagraDiagramm ooff interpretedinterpreted relationshiprelationship ofof VeatchVeatch'sfs "AlmnA.lmyy formation"formation** andand thethe WasatchWasatch andand EvanstonEvanston formations..............................formations•*••» »••••»«••••••••.*.• 3333 5.5. ViewYiew showingshowing BridgerBridger (?)(?) bedbedss inin faultfault con-con­ tactactt witwithh GannetGannettt strata.............................strata*•*»•••••*••••*••••••••*••••• 3737 6.6* LocalLocal conglomerateconglomerate lenseslenses andand slightslight cross-cross- laminationlamination inin FowkesFowkes outcropoutcrop inin WhitneyWhitney Canyon.......Canyon 6868 7.7* ViewView ofof FowkesFowkes outcropoutcrop inin WhitneWhitneyy Canyon.............Canyon* «••*••• 6969 8.8* StratigraphicStratigraphic oorrelationcorrelation chart......................chart • 7272 9.9* IdealizedIdealized cross-sectioncross-section fromfrom northeasnortheastt utahUtah to central Uinta County, wyoming..................... 73 to central Uinta County, Wyoming «•• 73 10. Trace of fault along the mouth of Shell Hollow....... 76 10. Trace of fault along the mouth of Shell Hollow 76 11. Fowkes formation resting in fault contact with 11* Fowkelowers wasatchformatio stratan restin westg inof faul Alroy....................t contact with 78 lower Wasatch strata west of Almy.. 78 12.12. SmallSmall anticlinalanticlinal foldfold inin WasatchWasatch andand BridgerBridger (1)(?) strata near Upper Narrows............................ 82 strata near Upper Narrows.. 82 13.13* StructuralStructural terracterracee onon easteast sideside ooff BearBear RiverRiver Valley...............................................Valley.•••••*•••••••••••«••.•••**.••*•*•••«••••••#.«• 9292 14.14* StructuralStructural terracesterraces onon wstwest sideside ofof BearBear RiverRiver Valley...............................................Valley*•••••••••*••••••••••»•••*•*•*••••••••••••*••«•
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