ncso geological mapping event 2019 questions …in which rock type are wind cave national park and...

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NCSO GEOLOGICAL MAPPING EVENT 2019 QUESTIONS (NOTE: Questions are worth one point each unless otherwise marked. 65 points total) I. TECTONIC PLATES (SEE FIGURE I) 1. What tectonic plate is Phoenix, Arizona part of? A. North American B. Nazca C. Eurasian D. Scotia E. None of these 2. Which of these is the closest plate boundary to Phoenix? It is the boundary with the __________. A. Caribbean Plate B. Scotia Plate C. Pacific Plate D. Arabian Plate E. Cocos Plate 3. (2 pts) Why is Iceland located on two plates? A. It is on a divergent plate boundary. B. It is on a convergent plate boundary. C. It is on a transform plate boundary. D. It is on a subduction zone boundary. E. It is on a fossil plate boundary. 4. Which of these areas of active volcanoes is NOT part of the “Ring of Fire” A. The Aleutians Islands. B. The Andes. C. Philippines. D. The Hawaiian Islands. E. New Zealand. 5. Which of these plates does not include continental crust? A. African B. Indian C. South American D. Pacific E. Australian 6. Which of these areas is/are likely to suffer from the effects of tsunamis? A. The Hawaiian Islands B. The Aleutian Islands C. The west coast of South America D. Indonesia E. All of these

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Page 1: NCSO GEOLOGICAL MAPPING EVENT 2019 QUESTIONS …In which rock type are Wind Cave National Park and Jewel Cave National Monument? A. Wind Cave – schist; Jewel Cave – sandstone

NCSOGEOLOGICALMAPPINGEVENT2019 QUESTIONS(NOTE:Questionsareworthonepointeachunlessotherwisemarked.65pointstotal)I.TECTONICPLATES(SEEFIGUREI)1.WhattectonicplateisPhoenix,Arizonapartof?

A. NorthAmericanB. NazcaC. EurasianD. ScotiaE. Noneofthese

2.WhichoftheseistheclosestplateboundarytoPhoenix?Itistheboundarywiththe__________.

A. CaribbeanPlateB. ScotiaPlateC. PacificPlateD. ArabianPlateE. CocosPlate

3.(2pts)WhyisIcelandlocatedontwoplates?

A. Itisonadivergentplateboundary.B. Itisonaconvergentplateboundary.C. Itisonatransformplateboundary.D. Itisonasubductionzoneboundary.E. Itisonafossilplateboundary.

4.WhichoftheseareasofactivevolcanoesisNOTpartofthe“RingofFire”

A. TheAleutiansIslands.B. TheAndes.C. Philippines.D. TheHawaiianIslands.E. NewZealand.

5.Whichoftheseplatesdoesnotincludecontinentalcrust?

A. AfricanB. IndianC. SouthAmericanD. PacificE. Australian

6.Whichoftheseareasis/arelikelytosufferfromtheeffectsoftsunamis?

A. TheHawaiianIslandsB. TheAleutianIslandsC. ThewestcoastofSouthAmericaD. IndonesiaE. Allofthese

Page 2: NCSO GEOLOGICAL MAPPING EVENT 2019 QUESTIONS …In which rock type are Wind Cave National Park and Jewel Cave National Monument? A. Wind Cave – schist; Jewel Cave – sandstone

7.Whichoftheseareasistheleastlikelytosufferfromlandslides?A. WesternCaliforniaB. WesternNorthCarolinaC. WesternSouthAmericaD. EasternNorthCarolinaE. NorthernIndiaandNepal

II.NORTHWESTDURHAMQUADRANGLE,NORTHCAROLINA(FIGUREII) ThisdiagramistakenfromtheGeologicalMapoftheNorthwestDurham7.5-minutequadrangle.UnitZadltis“andesitictodaciticlavasandtuffs”ofLateProterozoicage;UnitTrcs/si1is“pinktotanarkosicsandstoneandsiltstoneofTriassicage”;andunitJdis“blacktogreenishblackdiabase/basalt,locallycontainingolivine.”8.Whattypeofdiagramisthis?

A. sedimentaryfaciesisopachmapB. geologicalcrosssectionC. stratigraphiccolumnD. MercatorprojectionE. Fencecorrelationdiagram

9.(2pts)WhatisthenatureofthecontactbetweenunitZadltandTrcs/si1?

A. unconformityB. conformablesedimentarybedsC. conformablesequenceoflavaflowD. intrusiveE. fault

10.(2pts)WhatisthenatureofthecontactbetweenunitJdandTrcs/si1?

A. unconformityB. conformablesedimentarybedsC. conformablesequenceoflavaflowD. intrusiveE. fault

11.WhatisthenatureofthecontactbetweenunitJdandZadlt?

A. unconformityB. conformablesedimentarybedsC. conformablesequenceoflavaflowD. intrusiveE. fault

Page 3: NCSO GEOLOGICAL MAPPING EVENT 2019 QUESTIONS …In which rock type are Wind Cave National Park and Jewel Cave National Monument? A. Wind Cave – schist; Jewel Cave – sandstone

12.(2pts)WhatisthenatureofunitJdatthelocationmarkedX?A. athrustfaultB. arecumbentdikeC. ametamorphicisogradD. alavaflowE. asill

III.BLACKHILLS,SOUTHDAKOTA(FIGUREIIIA&B)13.InwhichrocktypeareWindCaveNationalParkandJewelCaveNationalMonument?

A. WindCave–schist;JewelCave–sandstoneB. WindCave–limestone;JewelCave–sandstoneC. WindCave–limestone;JewelCave–graniteD. WindCave–sandstone;JewelCave–graniteE. WindCave–limestone;JewelCave–limestone

14.Whichistheoldestrocktypedepicted?

A. sandstoneB. graniteC. schistD. limestoneE. somethingelse

15.BedsofDakotasandstonenearRapidCitydipinwhichdirection?

A. northB. eastC. southD. westE. northwest

16.Theoverallstructureofthisareaisbestdescribedasa/an:

A. synclineB. thrustfaultC. domeD. basinE. plungingsyncline

17.(2pts)ExaminethepictureofMountRushmore.Giventheinformationofthegeologicalblockdiagram,whatrocktypearethepresidents’heads,andwhattypearethedark-coloredrocksindicatedbythewhiteXbeneathGeorgeWashington?

A. Heads–granite;Darkrocks–schistB. Heads–granite;Darkrocks–limestoneC. Heads–schist;Darkrocks–sandstoneD. Heads–limestone;Darkrocks–graniteE. Heads–sandstone;Darkrocks–schist

Page 4: NCSO GEOLOGICAL MAPPING EVENT 2019 QUESTIONS …In which rock type are Wind Cave National Park and Jewel Cave National Monument? A. Wind Cave – schist; Jewel Cave – sandstone

18.(2pts)ThedarkrocksindicatedbytheXare______________thanthelightrocksoftheheads.Thedarkrocksrepresenta/an______________surroundedbythelightrocks.

A. younger;windowB. older;xenolithC. younger;protolithD. older;protolithE. younger;lavaflow

IV.FANTASYQUADRANGLE(FIGUREIV) Therearedifferentsortsofgeologiccontacts.Giventhefollowingchoices,foreachcontactdescribedbelow(questions19-25)intheFantasyQuadrangle,selectthecorrectresponse:

A. ConformablesedimentarycontactB. Unconformity(anytypeofunconformablecontact)C. IntrusivecontactD. FaultcontactE. Noneofthese

19.ThecontactbetweentheMonteithgraniteandtheD.H.Hilllimestone20.ThecontactbetweentheReynoldsFormationandtheD.H.Hilllimestone21.ThecontactbetweentheMonteithgraniteandthediabase22.ThecontactbetweentheWitherssandstoneandtheJordanFormation23.ThecontactbetweenthealluviumandtheJordanFormation24.ThecontactbetweentheAventFerryquartziteandtheWesternFormation25.ThecontactbetweentheMonteithgraniteandtheReynoldsFormation(Eventhoughitisnotvisibleonthemap)26.Whatisthefeatureindicatedbytheheavyblackdashedline?

A. Axis(hingeline)ofarecumbentnappe.B. Axis(hingeline)ofaplunginganticlineC. NormalfaultD. Strike-slipfaultE. Axis(hingeline)ofaplungingsyncline

Page 5: NCSO GEOLOGICAL MAPPING EVENT 2019 QUESTIONS …In which rock type are Wind Cave National Park and Jewel Cave National Monument? A. Wind Cave – schist; Jewel Cave – sandstone

27.(2pts)WhatisthefeatureB-B’?A. NormalfaultB. ReversefaultC. ThrustfaultD. Strike-slipfault(eithertype)E. Subductionzone

28.(2pts)WhendidA-A’form?

A. AfterthealluviumwasdepositedB. BeforethealluviumbutafterthediabaseC. BeforethediabasebutaftertheMonteithgraniteD. BeforetheMonteithgranitebutaftertheWesternFormationE. Noneoftheseiscorrect

29.(3pts)Whichofthefollowingisthecorrectsequence(oldesttomostrecent;i.e.firsttolast)?

A. CarterRhyolite,Diabase,MonteithGranite,AventFerryQuartzite,Alluvium,WithersSandstone

B. AventFerryQuartzite,MonteithGranite,CarterRhyolite,WithersSandstone,Diabase,Alluvium

C. WithersSandstone,Alluvium,CarterRhyolite,MonteithGranite,AventFerryQuartzite,Diabase

D. AventFerryQuartzite,CarterRhyolite,WithersSandstone,MonteithGranite,Diabase,Alluvium

E. MonteithGranite,WithersSandstone,Diabase,CarterRhyolite,AventFerryQuartzite,Alluvium

V.EASTMESAQUADRANGLE,NEWMEXICO(FIGUREV)30.(2pts)Inthismap,notethe(parallel)relationshipbetweenmostofthegeologicalcontactsandthetopographiccontourlines.(Ignorethepurplelines.)Whatdoesthistellyou?

A. TherocksaremetamorphicB. TherocksaredippingdownstreamtothewestC. TherocksareinhorizontallayersD. TherocksarefoldedgentlyE. Theyoungestrocksareinthevalleys

31.(3pts)Whatisthecorrectsequenceoftheserockunits,fromtheoldesttotheyoungest?

A. Kds,Js,Jeu,Kdo,JzB. Jeu,Js,Jz,Kds,KdoC. Js,Kds,Jeu,Jz,KdoD. Kdo,Kds,Jeu,Jz,JsE. Kdo,Kds,Jz,Js,Jeu

Page 6: NCSO GEOLOGICAL MAPPING EVENT 2019 QUESTIONS …In which rock type are Wind Cave National Park and Jewel Cave National Monument? A. Wind Cave – schist; Jewel Cave – sandstone

VI.APEXQUADRANGLE,NORTHCAROLINA(FIGUREVI) ThesearetwocontouredSchmidtequal-areastereonetplotsforpolestofoliation(A)andpolestobedding(B)intheApexQuadrangle,NorthCarolina.32.(2pts)Whatisthegeneraloraverageattitude/orientationrepresentedinA?

A. Vertical/steeplydippingB. Horizontal/gentlydippingC. StrikingNE-SWanddippingNED. StrikingNE-SWanddippingSWE. StrikingNW-SEanddippingSW

33.(2pts)Whatisthegeneraloraverageattitude/orientationrepresentedinB?

A. Vertical/steeplydippingB. Horizontal/gentlydippingC. StrikingNE-SWanddippingNED. StrikingNE-SWanddippingSWE. StrikingNW-SEanddippingSW

VII.MINORCANYON(FIGUREVII)34.(2pts)PriortothedepositionoftheLarsontonFormation,whichoftheseunitswastheyoungest(mostrecent)toform?

A. LeetJunctionFm.B. TarburgFm.C. BirklandFm.D. GraniteE. Dike

35.(2pts)WhichunitismostlikelytocontainpebbleserodedfromtheDike?

A. LarsontonFm.B. FosterCityFm.C. BirklandFm.D. LutgradFm.E. Granite

36.(3pts)WhatisonewaytotellthattheTarburgFormationisolderthantheHamlinvilleFormation?

A. TheMinorCanyonRiverflowsthroughit.B. ThegranitecutsthroughtheHamlinvilleFormation.C. ThedikedoesnotcutthroughtheTarburgFormation.D. TheTarburgFormationistilted;theHamlinvilleFormationishorizontal.E. TreesaregrowingontheHamlinvilleFormationbutnotontheTarburg

Formation.

Page 7: NCSO GEOLOGICAL MAPPING EVENT 2019 QUESTIONS …In which rock type are Wind Cave National Park and Jewel Cave National Monument? A. Wind Cave – schist; Jewel Cave – sandstone

VIII.OTHERQUESTIONS(nofigures)37.Aspecialtypeofcompassusedbygeologistsisknownasa/an_____________Compass.

A. RietveldtB. McKinleyC. AshburnD. BruntonE. Suunto

38.Thistypeofcompassisuniqueinpartbecauseit

A. Includesamirrorandaninclinometer.B. DoesnotneedtobecorrectedfortheEarth’smagneticdeclination.C. OnlyworksintheNorthernHemisphere.D. Hasanall-digitaldisplay.E. Comeswithabuilt-inGPSunit.

39.(4pts)Whataretwowaystodistinguishasynclinefromananticline?(ThisquestionisTiebreaker#1)40.(4pts)Thereisarocksetinplasteratthefrontoftheroom.Useyourinclinometerorcompasstomeasurethedipoftherocksample,orsimplyestimateit.Examinetherocksampleinthebox,butdonotpickitup.Notethenortharrow.Whatisthecorrectstrikeanddipofthebeddinginthisrock?(ThisquestionisTiebreaker#2) Strike:___________________ Dip:___________________

Page 8: NCSO GEOLOGICAL MAPPING EVENT 2019 QUESTIONS …In which rock type are Wind Cave National Park and Jewel Cave National Monument? A. Wind Cave – schist; Jewel Cave – sandstone

NCSOGEOLOGICALMAPPINGEVENT2019 FIGURESI.TECTONICPLATES

II.NORTHWESTDURHAMQUADRANGLE,NORTHCAROLINA

Page 9: NCSO GEOLOGICAL MAPPING EVENT 2019 QUESTIONS …In which rock type are Wind Cave National Park and Jewel Cave National Monument? A. Wind Cave – schist; Jewel Cave – sandstone

III.BLACKHILLS,SOUTHDAKOTA A.

B.

Page 10: NCSO GEOLOGICAL MAPPING EVENT 2019 QUESTIONS …In which rock type are Wind Cave National Park and Jewel Cave National Monument? A. Wind Cave – schist; Jewel Cave – sandstone

IV.FANTASYQUADRANGLE

A

A’

B

B’

Page 11: NCSO GEOLOGICAL MAPPING EVENT 2019 QUESTIONS …In which rock type are Wind Cave National Park and Jewel Cave National Monument? A. Wind Cave – schist; Jewel Cave – sandstone

V.EASTMESAQUADRANGLE,NEWMEXICO

Page 12: NCSO GEOLOGICAL MAPPING EVENT 2019 QUESTIONS …In which rock type are Wind Cave National Park and Jewel Cave National Monument? A. Wind Cave – schist; Jewel Cave – sandstone

VI.APEXQUADRANGLE,NORTHCAROLINA

A. ProterozoicRocks

B. TriassicRocks

Page 13: NCSO GEOLOGICAL MAPPING EVENT 2019 QUESTIONS …In which rock type are Wind Cave National Park and Jewel Cave National Monument? A. Wind Cave – schist; Jewel Cave – sandstone

VII.MINORCANYON

Page 14: NCSO GEOLOGICAL MAPPING EVENT 2019 QUESTIONS …In which rock type are Wind Cave National Park and Jewel Cave National Monument? A. Wind Cave – schist; Jewel Cave – sandstone

NCSOGEOLOGICALMAPPINGEVENT2019 QUESTIONS(NOTE:Questionsareworthonepointeachunlessotherwisemarked.65pointstotal)CIRCLETHECORRECTANSWERI.TECTONICPLATES(SEEFIGUREI)1. A B C D E2. A B C D E3.(2pts) A B C D E4. A B C D E5. A B C D E6. A B C D E7. A B C D EII.NORTHWESTDURHAMQUADRANGLE,NORTHCAROLINA(FIGUREII) 8. A B C D E9.(2pts) A B C D E10.(2pts) A B C D E11. A B C D E12.(2pts) A B C D EIII.BLACKHILLS,SOUTHDAKOTA(FIGUREIIIA&B)13. A B C D E14. A B C D E15. A B C D E16. A B C D E17.(2pts) A B C D E18.(2pts) A B C D E

Page 15: NCSO GEOLOGICAL MAPPING EVENT 2019 QUESTIONS …In which rock type are Wind Cave National Park and Jewel Cave National Monument? A. Wind Cave – schist; Jewel Cave – sandstone

IV.FANTASYQUADRANGLE(FIGUREIV)19. A B C D E20. A B C D E21. A B C D E22. A B C D E23. A B C D E24. A B C D E25. A B C D E26. A B C D E27.(2pts) A B C D E28.(2pts) A B C D E29.(3pts) A B C D EV.EASTMESAQUADRANGLE,NEWMEXICO(FIGUREV)30.(2pts) A B C D E31.(3pts) A B C D EVI.APEXQUADRANGLE,NORTHCAROLINA(FIGUREVI)32.(2pts) A B C D E33.(2pts) A B C D E

Page 16: NCSO GEOLOGICAL MAPPING EVENT 2019 QUESTIONS …In which rock type are Wind Cave National Park and Jewel Cave National Monument? A. Wind Cave – schist; Jewel Cave – sandstone

VII.MINORCANYON(FIGUREVII)34.(2pts) A B C D E35.(2pts) A B C D E36.(3pts) A B C D EVIII.OTHERQUESTIONS(nofigures)37. A B C D E38. A B C D E39.(4pts)Whataretwowaystodistinguishasynclinefromananticline?(ThisquestionisTiebreaker#1)40.(4pts)Thereisarocksetinplasteratthefrontoftheroom.Useyourinclinometerorcompasstomeasurethedipoftherocksample,orsimplyestimateit.Examinetherocksampleinthebox,butdonotpickitup.Notethenortharrow.Whatisthecorrectstrikeanddipofthebeddinginthisrock?(ThisquestionisTiebreaker#2) Strike:___________________ Dip:___________________

Page 17: NCSO GEOLOGICAL MAPPING EVENT 2019 QUESTIONS …In which rock type are Wind Cave National Park and Jewel Cave National Monument? A. Wind Cave – schist; Jewel Cave – sandstone

NCSOGEOLOGICALMAPPINGEVENT2019 QUESTIONS(NOTE:Questionsareworthonepointeachunlessotherwisemarked.65pointstotal)I.TECTONICPLATES(SEEFIGUREI)1.WhattectonicplateisPhoenix,Arizonapartof?

F. NorthAmericanG. NazcaH. EurasianI. ScotiaJ. Noneofthese

2.WhichoftheseistheclosestplateboundarytoPhoenix?Itistheboundarywiththe__________.

F. CaribbeanPlateG. ScotiaPlateH. PacificPlateI. ArabianPlateJ. CocosPlate

3.(2pts)WhyisIcelandlocatedontwoplates?

F. Itisonadivergentplateboundary.G. Itisonaconvergentplateboundary.H. Itisonatransformplateboundary.I. Itisonasubductionzoneboundary.J. Itisonafossilplateboundary.

4.WhichoftheseareasofactivevolcanoesisNOTpartofthe“RingofFire”

F. TheAleutiansIslands.G. TheAndes.H. Philippines.I. TheHawaiianIslands.J. NewZealand.

5.Whichoftheseplatesdoesnotincludecontinentalcrust?

F. AfricanG. IndianH. SouthAmericanI. PacificJ. Australian

6.Whichoftheseareasis/arelikelytosufferfromtheeffectsoftsunamis?

F. TheHawaiianIslandsG. TheAleutianIslandsH. ThewestcoastofSouthAmericaI. IndonesiaJ. Allofthese

Page 18: NCSO GEOLOGICAL MAPPING EVENT 2019 QUESTIONS …In which rock type are Wind Cave National Park and Jewel Cave National Monument? A. Wind Cave – schist; Jewel Cave – sandstone

7.Whichoftheseareasistheleastlikelytosufferfromlandslides?F. WesternCaliforniaG. WesternNorthCarolinaH. WesternSouthAmericaI. EasternNorthCarolinaJ. NorthernIndiaandNepal

II.NORTHWESTDURHAMQUADRANGLE,NORTHCAROLINA(FIGUREII) ThisdiagramistakenfromtheGeologicalMapoftheNorthwestDurham7.5-minutequadrangle.UnitZadltis“andesitictodaciticlavasandtuffs”ofLateProterozoicage;UnitTrcs/si1is“pinktotanarkosicsandstoneandsiltstoneofTriassicage”;andunitJdis“blacktogreenishblackdiabase/basalt,locallycontainingolivine.”8.Whattypeofdiagramisthis?

F. sedimentaryfaciesisopachmapG. geologicalcrosssectionH. stratigraphiccolumnI. MercatorprojectionJ. Fencecorrelationdiagram

9.(2pts)WhatisthenatureofthecontactbetweenunitZadltandTrcs/si1?

F. unconformityG. conformablesedimentarybedsH. conformablesequenceoflavaflowI. intrusiveJ. fault

10.(2pts)WhatisthenatureofthecontactbetweenunitJdandTrcs/si1?

F. unconformityG. conformablesedimentarybedsH. conformablesequenceoflavaflowI. intrusiveJ. fault

11.WhatisthenatureofthecontactbetweenunitJdandZadlt?

F. unconformityG. conformablesedimentarybedsH. conformablesequenceoflavaflowI. intrusiveJ. fault

Page 19: NCSO GEOLOGICAL MAPPING EVENT 2019 QUESTIONS …In which rock type are Wind Cave National Park and Jewel Cave National Monument? A. Wind Cave – schist; Jewel Cave – sandstone

12.(2pts)WhatisthenatureofunitJdatthelocationmarkedX?F. athrustfaultG. arecumbentdikeH. ametamorphicisogradI. alavaflowJ. asill

III.BLACKHILLS,SOUTHDAKOTA(FIGUREIIIA&B)13.InwhichrocktypeareWindCaveNationalParkandJewelCaveNationalMonument?

F. WindCave–schist;JewelCave–sandstoneG. WindCave–limestone;JewelCave–sandstoneH. WindCave–limestone;JewelCave–graniteI. WindCave–sandstone;JewelCave–graniteJ. WindCave–limestone;JewelCave–limestone

14.Whichistheoldestrocktypedepicted?

F. sandstoneG. graniteH. schistI. limestoneJ. somethingelse

15.BedsofDakotasandstonenearRapidCitydipinwhichdirection?

F. northG. eastH. southI. westJ. northwest

16.Theoverallstructureofthisareaisbestdescribedasa/an:

F. synclineG. thrustfaultH. domeI. basinJ. plungingsyncline

17.(2pts)ExaminethepictureofMountRushmore.Giventheinformationofthegeologicalblockdiagram,whatrocktypearethepresidents’heads,andwhattypearethedark-coloredrocksindicatedbythewhiteXbeneathGeorgeWashington?

F. Heads–granite;Darkrocks–schistG. Heads–granite;Darkrocks–limestoneH. Heads–schist;Darkrocks–sandstoneI. Heads–limestone;Darkrocks–graniteJ. Heads–sandstone;Darkrocks–schist

Page 20: NCSO GEOLOGICAL MAPPING EVENT 2019 QUESTIONS …In which rock type are Wind Cave National Park and Jewel Cave National Monument? A. Wind Cave – schist; Jewel Cave – sandstone

18.(2pts)ThedarkrocksindicatedbytheXare______________thanthelightrocksoftheheads.Thedarkrocksrepresenta/an______________surroundedbythelightrocks.

F. younger;windowG. older;xenolithH. younger;protolithI. older;protolithJ. younger;lavaflow

IV.FANTASYQUADRANGLE(FIGUREIV) Therearedifferentsortsofgeologiccontacts.Giventhefollowingchoices,foreachcontactdescribedbelow(questions19-25)intheFantasyQuadrangle,selectthecorrectresponse:

F. ConformablesedimentarycontactG. Unconformity(anytypeofunconformablecontact)H. IntrusivecontactI. FaultcontactJ. Noneofthese

19.ThecontactbetweentheMonteithgraniteandtheD.H.HilllimestoneC20.ThecontactbetweentheReynoldsFormationandtheD.H.HilllimestoneB21.ThecontactbetweentheMonteithgraniteandthediabaseC22.ThecontactbetweentheWitherssandstoneandtheJordanFormationA23.ThecontactbetweenthealluviumandtheJordanFormationB24.ThecontactbetweentheAventFerryquartziteandtheWesternFormationA25.ThecontactbetweentheMonteithgraniteandtheReynoldsFormation(Eventhoughitisnotvisibleonthemap)B26.Whatisthefeatureindicatedbytheheavyblackdashedline?

F. Axis(hingeline)ofarecumbentnappe.G. Axis(hingeline)ofaplunginganticlineH. NormalfaultI. Strike-slipfaultJ. Axis(hingeline)ofaplungingsyncline

Page 21: NCSO GEOLOGICAL MAPPING EVENT 2019 QUESTIONS …In which rock type are Wind Cave National Park and Jewel Cave National Monument? A. Wind Cave – schist; Jewel Cave – sandstone

27.(2pts)WhatisthefeatureB-B’?F. NormalfaultG. ReversefaultH. ThrustfaultI. Strike-slipfault(eithertype)J. Subductionzone

28.(2pts)WhendidA-A’form?

F. AfterthealluviumwasdepositedG. BeforethealluviumbutafterthediabaseH. BeforethediabasebutaftertheMonteithgraniteI. BeforetheMonteithgranitebutaftertheWesternFormationJ. Noneoftheseiscorrect

29.(3pts)Whichofthefollowingisthecorrectsequence(oldesttomostrecent;i.e.firsttolast)?

F. CarterRhyolite,Diabase,MonteithGranite,AventFerryQuartzite,Alluvium,WithersSandstone

G. AventFerryQuartzite,MonteithGranite,CarterRhyolite,WithersSandstone,Diabase,Alluvium

H. WithersSandstone,Alluvium,CarterRhyolite,MonteithGranite,AventFerryQuartzite,Diabase

I. AventFerryQuartzite,CarterRhyolite,MonteithGranite,WithersSandstone,Diabase,Alluvium

J. MonteithGranite,WithersSandstone,Diabase,CarterRhyolite,AventFerryQuartzite,Alluvium

V.EASTMESAQUADRANGLE,NEWMEXICO(FIGUREV)30.(2pts)Inthismap,notethe(parallel)relationshipbetweenmostofthegeologicalcontactsandthetopographiccontourlines.(Ignorethepurplelines.)Whatdoesthistellyou?

F. TherocksaremetamorphicG. TherocksaredippingdownstreamtothewestH. TherocksareinhorizontallayersI. TherocksarefoldedgentlyJ. Theyoungestrocksareinthevalleys

31.(3pts)Whatisthecorrectsequenceoftheserockunits,fromtheoldesttotheyoungest?

F. Kds,Js,Jeu,Kdo,JzG. Jeu,Js,Jz,Kds,KdoH. Js,Kds,Jeu,Jz,KdoI. Kdo,Kds,Jeu,Jz,JsJ. Kdo,Kds,Jz,Js,Jeu

Page 22: NCSO GEOLOGICAL MAPPING EVENT 2019 QUESTIONS …In which rock type are Wind Cave National Park and Jewel Cave National Monument? A. Wind Cave – schist; Jewel Cave – sandstone

VI.APEXQUADRANGLE,NORTHCAROLINA(FIGUREVI) ThesearetwocontouredSchmidtequal-areastereonetplotsforpolestofoliation(A)andpolestobedding(B)intheApexQuadrangle,NorthCarolina.32.(2pts)Whatisthegeneraloraverageattitude/orientationrepresentedinA?

F. Vertical/steeplydippingG. Horizontal/gentlydippingH. StrikingNE-SWanddippingNEI. StrikingNE-SWanddippingSWJ. StrikingNW-SEanddippingSW

33.(2pts)Whatisthegeneraloraverageattitude/orientationrepresentedinB?

F. Vertical/steeplydippingG. Horizontal/gentlydippingH. StrikingNE-SWanddippingNEI. StrikingNE-SWanddippingSWJ. StrikingNW-SEanddippingSW

VII.MINORCANYON(FIGUREVII)34.(2pts)PriortothedepositionoftheLarsontonFormation,whichoftheseunitswastheyoungest(mostrecent)toform?

F. LeetJunctionFm.G. TarburgFm.H. BirklandFm.I. GraniteJ. Dike

35.(2pts)WhichunitismostlikelytocontainpebbleserodedfromtheDike?

F. LarsontonFm.G. FosterCityFm.H. BirklandFm.I. LutgradFm.J. Granite

36.(3pts)WhatisonewaytotellthattheTarburgFormationisolderthantheHamlinvilleFormation?

F. TheMinorCanyonRiverflowsthroughit.G. ThegranitecutsthroughtheHamlinvilleFormation.H. ThedikedoesnotcutthroughtheTarburgFormation.I. TheTarburgFormationistilted;theHamlinvilleFormationishorizontal.J. TreesaregrowingontheHamlinvilleFormationbutnotontheTarburg

Formation.

Page 23: NCSO GEOLOGICAL MAPPING EVENT 2019 QUESTIONS …In which rock type are Wind Cave National Park and Jewel Cave National Monument? A. Wind Cave – schist; Jewel Cave – sandstone

VIII.OTHERQUESTIONS(nofigures)37.Aspecialtypeofcompassusedbygeologistsisknownasa/an_____________Compass.

F. RietveldtG. McKinleyH. AshburnI. BruntonJ. Suunto

38.Thistypeofcompassisuniqueinpartbecauseit

F. Includesamirrorandaninclinometer.G. DoesnotneedtobecorrectedfortheEarth’smagneticdeclination.H. OnlyworksintheNorthernHemisphere.I. Hasanall-digitaldisplay.J. Comeswithabuilt-inGPSunit.

39.(4pts)Whataretwowaystodistinguishasynclinefromananticlineonageologicalmap?(ThisquestionisTiebreaker#1) Asynclinehastheyoungestbeds/layersinthemiddle(closesttotheaxisorhinge)andtheygetolderasyougoout;ananticlinehastheoldestbeds/layersinthemiddleandtheygetyoungeroutward. Inasyncline,thebedsdiptowardthemiddle;inananticlinethebedsdipawayfromthemiddle.(Theymaysayananticlineisan“upfold”andasynclineisa“downfold.”That’sokay,butnotasgoodasanswersabove.Across-sectiondiagramisreallynogood,becausethequestionisaskingaboutmapview)40.(4pts)Thereisarocksetinplasteratthefrontoftheroom.Useyourinclinometerorcompasstomeasurethedipoftherocksample,orsimplyestimateit.Examinetherocksampleinthebox,butdonotpickitup.Notethenortharrow.Whatisthecorrectstrikeanddipofthebeddinginthisrock?(ThisquestionisTiebreaker#2) BOX#1-Strike:_____N33W______________ Dip:_______67NE____________ BOX#2-Strike:_______N40W____________ Dip:_______70NE____________ BOX#3-Strike:_____N40W______________ Dip:_______70NE____________ BOX#4-Strike:______N45W_____________ Dip:_____70NE______________Acceptanswerswithin+/-fivedegreesforstrikeandfordip.Therearealternativewaysofansweringthisquestion;forexampleusingazimuth.Box#1couldbeansweredwith327,67or327,67NEor147,67NE