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Geology of the Southern Lakeside Mountains, Utah

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Geology of the Southern Lakeside Mountains, Utah GEOLOGY OF THE SOUTHERN LAKESIDE MOUNTAINS, UTAH by John C. Young A thesis submitted to the faculty of the University of Utah in parti3.1 fulfillment of the requirements for the degree of Master of Scie nce Department of Geology University of Utah August 1953 Approved: Chairman, Supervisory Committee / LIBHARY UNIVERSITY O� :ur� TABLE OF CONTENTS PPagea g e ,I INTRODUCTIOINTRODUCTIONN ••••• • • . •.. • • • • • • • • • 11 FIELFIELDD WORWORKK ANANDD ACKNOWLEDGEMENTACKNOWLEDGEMENTSS • • • • • • • • • • 3 STRATIGRAPHSTRATIGRAPHYY • • • • • • • • • • • • •••. •• .• 4 IntroductioIntroduction.n • • • • • • • • • • • • • • • • • • • • •• 4:4 CambriaCambriann SysteSystemm ...........• • • • • • • • • • •. • • • • • • • • 5 TintiTinticc QuartzitQuartzitee • • • • • • • • • • • • • • • •• 6 OphiOphirr ShalShale;e • • • • • • • • • • · • .. • • • • 6 HartmanHartmannn (?(?)) LimestonLime stonee • • • • • .• .• .• .• . • 7 BowmaBowmann (?{?}) LimestonLimestonee • • • • • • • •••· • • • • • 8 LyncLynchh (?(?)) DolomitDolomitee •.. • . • •••••• · • · • • • • • • • • 8 Ordovician System • • • • • • · . .. • • 11 Garden City Limestone · . .. • • • • • • • • 12 Swan Peak Formation. • • • • • • • • • • • 12 Fish Haven Dolomite • • • • • • • • • • • 13 Silurian Systen'1 • • • • • • • • • • • • • • • • • • 14 , . Laketown Dolomite • • • • • • • • • • • • • • 14 Devonian Systeul • • • • • • • • • 15 • • • • • • • • • •• • Water Canyon Formation • • • • • • • • • 15 Jefferson Dolomite •••••••••• • • • • 16 :Mlssissippian System • • • • • • • • • • •• • • • • • • 17 I 4 • • t: Madison Limestone. • • • • • • • • • • • • • 17 • .Deseret Liinestone. • •••••••••• 18 I .. • Humbug Formation. • • • • • •• ••• • • 19 Great Blue Limestone·. • • • • • • .• • • 20 • • • • f • • • • ii ~ 322:183 ...,. Page Mississippian-Pennsylvania!Mississippian-Pennsylvanian! (?(1)) BedBedss . · . 21 ManninManningg CanyoCanyonn FormatioFormationn •• • • . • !121 PennsylvaniaPennsylvaniann anandd PermiaPermiann (?(1)) SystemSystems.s 2323 OquirrOquirrhh FormatioFormationn •••• • • • a · . • 2323 TertiarTertiaryy anandd QuaternarQuaternaryy DepositDepositss . 2525 v;; -. '. :.->*. M •* ~ * * -•» •» * * ' 'V * * » * 'm * " - .~> .... • .. - , - . I • . STRUCTURSTRUCTUREE •• • • • • • • 0 • • • • • • • • • • • • • • • • z626 FaultFaultss . 2626 Folds . • . • . 29 Folds 29 REGIONAL SETTING AND STRUCTURAL CHRONOLOGY . 31 REGIONAL SETTING AND STRUCTURAL CHRONOLOGY . ... 31 Regional Structural Relationships. 31 AgeRegiona of Foldsl Structura and Faultsl Relationship • • • • •s • . 3531 Age of Folds and Faults 35 TimeTime ofof FoldingFolding •• • • • • • • • • • • • • 3535 TimeTime ofof Faulting.Faulting • . .. • 3737 GEOMOR PHOLOGY • • • • • • • • • • • • • • • • • • • • • 41 GEOMOR PHOLOGY . • 41 GEOLOGIC LaST OR Y 45 GEOLOGIC HISTORY . • 45 DETAILED ,MEASURED SECTIONS. 51 DETAILED MEASURED SECTIONS . 51 BIB LI OGRA PHY • • • • • • • • • • • 89 BIBLIOGRAPHY • • • • • • • • • • • • • • 89 tniii ILLUSTRATIONILLUSTRATIONSS FollowinFollowingg PagPagee FigurFiguree 1 IndeIndexx MaMapp •••.•••••••••••••••• 1 FigurFiguree 2 ProposeProposedd FaulFaultt RelationshipRelationshipss SurroundingSurrounding ThThee NortherNorthernn UtaUtahh HighlanHighland.d • • • • • • • • • *• • 3636 PlatPlatee I GeologiGeologicc MaMapp endand SectionSectionss ooff SoutherSouthernn InIn LakesidLakesidee MountainsMountains,, TooelTooelee CountyCounty,, UtaUtahh •... • • . • PocketPocket PlatPlatee IIII PostulatedPostulated Ge:>morphicGeomcrphic DevelopmenDevelopmentt ofof thethe LakesideLakeside MountainsMountains fron1from L2.teLe-te TertiaryTertiary Ti~cTime tt~o thethe PresentPresent •••••••••••••.............. •. • • 4141 PlatPlatee IIIIII GeneralizedGeneralised StrC1.tigraphicStratigraphic .3ection,Section, LakesideLakeside Mountains,Mountains, UtahUtah ••••• • • • • • • • • 44 iviv GEOLOGYGEOLOGY OFOF THETHE SOUTHERNSOUTHERN LAKESIDLAKESIDEE MOUNTAINSMOUNTAINS,, UTAHUTAH 1 INTRODUCTIONINTRODUCTION TheThe vastvast regionregion encompassingencompassing westerwesternn UtahUtah andand mosmostt ofof NevadaNevada isis relativelyrelatively untoucheuntouchedd geologically.geologically. OnlyOnly a fewfew importantimportant contribu­contribu­ tionstions toto thethe geologygeology ofof thithiss areaarea havehave beebeenn mademade atat widelywidely separatedseparated intervalsintervals inin thethe past.past. ManyMany litUelittle knowknownn basinbasinss andand rangesranges stillstill awaitawait investigationinvestigation byby thethe earthearth scientist.scientist. ThoughThough ththee geologygeology ofof thethe WasatchWasatch frontfront iiss fairlyfairly welwelll knownknown througthroughh thethe worksworks ofof numerousnumerous geologists,geologists, notnot muchmuch ofof generalgeneral im­im­ portancportancee hashas beenbeen publishepublishedd concerningconcerning thethe geologygeology ofof westernwestern UtahUtah exceptingexcepting thethe followingfollowing works:works: King'sKing's classicalclassical FortiethFortieth ParallelParallel Survey;Survey; andand UU.. S.S. G.G. S.S. ProfessionalProfessional PapersPapers nono.. IllIll,, "Ore"Ore DepositsDeposits ofof UtahUtah" I!;; no.no. 80,80, "Geology"Geology andand OreOre DepositsDeposits ooff thethe SanSan FranciscoFrancisco andand AdjacentAdjacent Districts,Districts, Utah";Utah"; bbyy B.B, S.S. Butler;Butler; nono., 173,173, "Geology"Geology andand OreOre DepositsDeposits ofof thethe StocktonStockton andand FairfielFairfieldd Quadrangles.Quadrangles, Utah,Utah, II" bbyy JamesJames Gilluly;Gilluly; andand nono., 177,177, "ThliThee GoldGold HillHill MiningMining District,District, UtahUtah,, II" byby T.T. BB.. Nolan.Nolan. TheThe writewriterr undertookundertook a studystudy ofof thethe southernsouthern parpartt ofof thethe LakesideLakeside MountainsMountains,, Tooele.Tooele. County.County, UtahUtah,, asas a subjectsubject forfor a master'smaster's thesisthesis uponupon thethe suggestionsuggestion ofof J.J. StewartStewart Williams,Williams, ProfessoProfessorr ofof GeologyGeology atat thethe UtahUtah StateState AgriculturaAgriculturall College.College. TheThe purposepurpose ofof thethe • • .,' H .. ,' 0 0 ' A f) j'" "'-'~=F''''''''9''-T'''t=IFf-f'r' '~r~T"---1 ""T•...,.. .,- ..-:-:~- , - ·' ~ . \1 ~l .. ~or $"Ie By Kintzel Blue Print Co . • • ' T ' ): • • " " ' - '1' ,. , . ,: CASPER WYOMING < ... C H r I ' ! .. , ., . l . : - ~~..,.A+o"""';'''''''++~" . ,1 . ,' ~ H.' UTA H \ -l : :1 )~ . , . " ~ . ~J / -I .... 1tH" i : ; , .' !. C - , TOO . ' " i~ I ,. ; or', , I 1 j • · o/- ~-t.-I~ ~ ' :- -' 0 ..:r ;- . -~ U ' I I I A o N A 2 studystudy waswas ttoo describedescribe thethe locallocal geologicgeologic featuresfeatures ofof thethe areaarea andand toto determinedetermine theitheirr relationshiprelationship toto broadebroaderr structuralstructural andand stratigraphicstratigraphic featuresfeatures ofof thethe GreatGreat SaltSalt LakeLake BasinBasin andand adjacentadjacent areas.areas. TheThe LakesideLakeside MountainsMountains areare a northnorth byby northwestnorthwest trendintrendingg rrang.angee ofof PaleozPaleozoi.oicc rocksrocks locatedlocated onon thethe southwestsouthwest .,ideside ofof GreatGreat SaltSalt Lake.Lake. WithWith a lengtlengthh ofof appJ'oximatelyapproximately 1818 milesmiles andand a maximummaximum widthwidth ofof aboutabout 5 mUes,miles, theythey formform oneone ofof thethe smallersmaller unitsunits ofof thethe so-calledso-called BasinBasin andand RaRang.ngee systemsystem ofof mountainmountain ranges.ranges. TheyThey areare reachedreached fromfrom SaltSalt LakeLake CityCity bbyy travellintravellingg westwest onon highwahighwayy 4040-5 .. 500 forfor 6060 miles.miles. ThisThis highwayhighway andand thethe WesternWestern Pacifi.cPacific RailroadRailroad skirtskirt thethe southsouth endend ofof thethe range.range. TheThe smallsmall railroadrailroad settlementsettlement ofof DelleDelle isis locatedlocated atat thethe southernsouthern titipp ofof thethe rangrangee andand isis thethe pointpoint fromfrom whicwhichh unimprovedunimproved dirtdirt roadsroads leadlead intointo thethe area.area. TheseThese roads,roads, ververyy poopo.orr toto impassibleimpassible inin wetwet weather,weather, skirtskirt thethe easterneastern andand westernwestern marginmarginss ofof ththee rangerange andand areare uuse.sedd almostalmost exclusivelyexclusively byby stockmenstockmen whowho winterwinter sheepsheep andand cattlecattle inin thethe area.area. AnotherAnother dirtdirt roadroad leadsleads northwardnorthward fromfrom DelleDelle toto thethe CalCal-Uta .. Utahh mine,mine, a distancedistance ofof aboutabout 5 milesmiles (Plate(Plate 1).I). FIELDFIELD WORKWORK ANDAND j\.ACKNOWLEDGEMENT CKNOWLEDGEMENTSS FielFieldd warkwork waswas carriedcarried onon duringduring thethe fallfall ofof 19501950 andand thethe winterwinter andand springspring ofof 1951.1951. TheThe geologygeology waswas plotteplottedd oonn aerialaerial photographsphotographs havinghaving a scalescale ofof aboutabout threethree inchesinches toto thethe mile.mile. }\nAn approxirnateapproximate landland gridgrid systemsystem waswas constructedconstructed onon thethe photographphotographss bbyy interpolationinterpolation betweenbetween knownknown sectionsection cornerscorners a.ccuratelyaccurately locatedlocated onon thethe photographs.photographs. TheThe geologygeology onon ththee phctcgraphsphotographs waswas thenthen transferredtransferred toto a mapmap byby meanmeanss ofof a RadialRadial PlanimetricPlanimetric Plotter.Plotter. SincereSincere appreciationappreciation isis extendedextended toto ProfessorProfessor WilliamWilliam
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