Geol201 Geology f03 quiz1

Geol201 Geology f03 quiz1 - ‘1 our name J GEOL 201 Quiz#1...

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Unformatted text preview: ‘1 our name__ J GEOL 201 Quiz #1 Fall 2003 [4 points per question] Please explain what a theory is. Scientific sense (as o posed to the “common usage" of the word theory). / “i ’1‘ m 0‘5?” t . .33 t It be (stout? Please describe the way plates move mfa‘t’ivg to one other’zt‘lffi'gégfrE-igm g”! M: l . 4 , I ,C. I W WOW loft MC; om atrial he V lt?l(_£_ finch”. Please list tw the properties a substance must have to be classified as a mineral. /.C. Do seismic waves travel more quickly through oceanic crust or continental crust? oceanic CV’US‘W‘“ 6% MULTIPLE CHOICE — PLEASE ENTER YOUR ANSWERS ON A SCANTRON FORM 5,. 1) What is the approximate age of the Earth? 8) Which of the following intrusive bodies commonly bine to form a batholith? 4. 5 , . a) 5 0 g Dtkes b) 4.55 million years b) Sins c) 4.55 billion years @ 45.5 billion years 2) Which of the following is a sheet silicate? c) Plutons 9) The P-wave shadow zone occurs because: a) Feldspar _ a} P waves do not pass through fluids. b) Amphibole P waves are bent when they paSs through the core. c) Olivine c) Earthquakes send waves in only one direction. Mica d) Our instruments can only detect very strong P 3) Which of the following has an isolated silicate “Ves' structure? 10) Which of the following is a feature typical of divergent Feldspar plate boundaries? b) Amphibole a) subduction zone c) Olivine b) mid—ocean ridge (1) Mica @ narrow. very deep. linear trenches 4) Why do soils rich in montrnorillonite clay minerals d) metamorphic rocks 'l we“ When they are we“ 11) Which of the following can contribute to lower the ' ' a a) Large pores spaces in the soil fill with water. memng pomt 0f mc-ks' b) The relatively large clay particles are readily a) Water. dlsplaCEd by water‘ b) A decrease in pressure. c) Water molecules get into the area between silicate ‘ The presence of more than one mineral (a mixture layers of the montmorillonite crystal structure. / of minerals). Q. d) All of the above. Beth b and c 12} Which of the following can cause low-lying margins of 5) Which of the following types of asbestOs DOES NOT continental plates to rise? pose a serious health risk? a) Isostatic adjustment Eb White asbestos (mineral name: chrysottle) b) Tectonic forces b) Blue asbestos (an amphlbole-family mineral) c) Solar tide pull c) Brown asbestos (an amphibole-family mineral) \ f _ h 1th h 6);: Bothaandb d) Na": 0 the above pose a “no” ea [ “at” 13) Which of the following play a role in the decay of mu 6) Where is the ultralow—velocity zone? to 2m’Pb'? At the core-mantle boundary 1;) a) Aipha decay \ b) At the mantle-crust boundary Beta decay c) At the lithosphere-asthenosphere boundary (3 Electron capture d) At the inner cote-outer cote boundary d) Both a and b- 7) True c.” false: the “Stem half or the North American 14) True or False: the halflives of radioactive isotopes do P an: m ham:th the Atlantic ocean' or vary beyond statistical expectations. a True (—5 True b) False Tb) False Your name b r - A flew? Iowa Please list two of the properties a substance must have to be classified as a mineral. W5, {Cptyjffilbic :‘n 5ch “(it cease 'FOUG Cl ‘l'brm, k Cyril-n; vs 1' L Please describe the way plates move retail GEOL 201 Quiz #1 Fall 2003 {4 points per question] Please explain what a theory is, in a scientific sense (as opposed to the “common usage" of the word theory). is basrc‘ oi) {tarts +he+ Mug 5‘1‘ rune/f C Do seismic waves travel more quickly through oceanic crust or continental crust? 1) 2) 3) 4) 5) 6) 7) OCPam‘( Comma ’I ve to one another at a tronsfonn plate boundary. MULTIPLE CHOICE — PLEASE ENTER YOUR ANSWERS ON A SCANTRON FORM What is the approximate age of the Earth? a) 4,550 years b) 4.55 million years c) 4.55 billion years d) 45.5 billion years Which of the following is a sheet silicate? a) Feldspar b) Amphibole c) Olivine cl) Mica Which of the following has an isolated silicate structure? a) Feldspar b) Amphibole c) Olivine d) Mica Why do soils rich in montmorillonite clay minerals swell when they are wet? a) Large pores spaces in the soil fill with water. b) The relatively large clay particles are readily displaced by water. c) Water molecules get into the area between silicate layers of the montmorillonite crystal structure. d) Both [2 and c Which of the following types of asbestos DOES NOT pose a serious health risk? a) White asbestos (mineral name: chrysotile) b) Blue asbestos (an amphibole-family mineral) c) Brown asbestos (an amphibole—family mineral) d) None of the above pose a serious health threat. Where is the ultraIOw-velocity zone? a) At the core~mantle boundary b) At the mantle-crust boundary 0) At the lithosphere-asthenospl'tere boundary d) At the inner core-outer core boundary True or false: the eastern half of the North American Plate in beneath the Atlantic Ocean. a) True b) False 3) 9) 10) ll) 12) l3) 14) Which of the following intrusive bodies commonly combine to form a batholith? a) Dikes b) Sills c) Plutons The P-wove shadow zone occurs because: a) P waves do not pass through fluids. b) P waves are bent when they pass through the core. c} Earthquakes send waves in only one direction. (1) Our instruments can only detect very strong P waves. Which of the following is a feature typical of divergent plate boundaries? a} subduction zone b) mid-ocean ridge c) narrow. very deep. linear trenches d) metamorphic rocks Which of the following can contribute to lower the melting point of rocks? a) Water. b) A decrease in pressure. c) The presence of more than one mineral (a mixture of minerals). d) All of the above. Which of the following can cause low-lying margins of continental plates to rise? a) Isostatic adjustment b} Tectonic forces c) Solar tide pull cl) Both a and [9 Which of the following play a role in the decay of 3U to 20"Pb? a) Alpha decay b) Beta decay c) Electron capture d) Both a and 17. True or False: the half lives of radioactive isotopes do not vary beyond statistical expectations. a) True b) False IS u5w'tv J.“5 I- 97* G» 599’ t‘ GEOL 201 QUIZ #2 FALL 2003 l l 3) 'Jl What kind of fault is depicted in the illustration? al Right lateral strike slip fault b) Left lateral strike slip fault c) Reverse fault d) Normal fault 'What kind of fault is in the photograph? a) Right lateral Strike slip fault b) Left lateral strike slip fault cl Reverse fault d) Normal fault Which way was the current flowing when the sediments in the photo were deposited“? a) Away front Grandma bi Toward Grandma cl Into the plane ofthe projection screen di Out of the plane of the projection screen This is a picture of a graded bed. Which side of the graded bed is the top of the deposit'.) For scale. see the ruler on leatherman tool. which shows centimeters. a: A bl B c: C di D Winch ripples formed in a wave environment? at A bl B Which ofthe following rocks is the youngest"? at The Lutgrad Formation b; The Larsontan Formation c) Dike dl Foster City Formation Which of the following rot-ks is the ain't-st? a) Granite bi Dike c) Birkland Formation d) Larsontan Formation 83 Which of the I‘oilowtng occurs during a Modified Mercallt Intensin Scale magnitude XII earthquake? at Some dishes and Windows are broken b) Waves seen on ground surface cl Objects thrown upward into the air d! All of the above 9‘} 10) 11) i3) 13) [4) 13) Why is quartz more resistant to chemical weathering than olivine? a} The bonds between iron or magnesium and oxygen in olivine are weaker than the bonds between silicon and oxygen in quartz. b) Quartz is more dense than olivine cl Olivine is harder and more brittle than quartz. d) All of the above. What is the name of metamorphism caused by meteorite impacts? a) Astronomical metamorphism b) Impact metamorphism (2) Shock metamorphism d) High pressure metamorphism What is the name of molten blobs of rock that are launched into the air by meteorite impact. and become streamlined as they fly through air before they solidify? a) Meteoric bombs b) Impact bombs c) Impact fallout (1) Tektites Which of the following is true about metamorphic l‘acies‘.’ a) The are defined by assemblages of minerals h) They reflect broadly similar temperature and pressure conditions. C) The concept of metamorphic facics was conceived several decades before the theory of plate tectonics was accepted. d) All of the above What conditions make it possible to form folds in sedimentary rocks‘.’ a) line grained sediments (mudstone and shale). b) Slow strain rates. c) Prevalence of plunging folds d) All of the above Which of the following minerals is most resistant to Chemsca] weathering? a) Olivine b) Amphlbole c) Quartz d) Pyroxene Which of the following Cities is least likely to be affected by an earthquake.J a} Houston. Texas. b) Charleston, South Carolina (I) New York. New York d) Memphis. Tennessee QUIZ CONTINUES QUIZ #3 GEOL 201 Fall 2003 l) 2) 3} 4) 5) 6) 7) Which figure shows the distribution of sand on a California beach during the winter? a) Figure A b) Figure B What is the direction of longshore drift in the figure? a) East to west I b) West to east c) North to south d) South to north Why does gravitational collapse occur? a) Kinetic energy is transformed into potential energy. b) A crustal welt becomes too high to be supported by the rocks below the welt. c) Heat caused by plutons weakens rock. d) All of the above. What is a suspect terrane? a) An area that is likely to be affected by slope failure. b) An area that is geologically unstable c) An area where volcanic eruptions are likely to occur. d) A terrane that may not have formed at it’s present location True or false: Rip currents form only when the prevailing direction of wave travel is perpendicular or almost perpendicular to the beach. a) True b) False Which of the following is true of gravel beaches? a) Gravel benches form where waves are larger than places where sand beaches form. b) Grave! beaches have a steeper face slope than sand beaches c) Gravel beaches for where waves are smaller than places where sand beaches form. d) Both B and C Which of the following are sources of sand on beaches? a) River sediment b) Sand stored outside the surf zone in deeper water offshore. c) The remains of marine organisms d) All of the above 8) 9) 10) ll) Which of the following factors probably contributed to failure of the St. Francis darn? a) Weak rock below and on both sides of the dam. b) An earthquake. c) A landslide. d) Vandalism. True or false: a column of thick continental crust (a mountain and its root) can weigh the same as a column of thin continental crust and some of the upper mantle. a) True b) False Which of the following islare commonly found at mid ocean ridges? a) Hot springs b) Normal faults c) Black smokers d) All of the above Shallow focus earthquakes occur along which parts of fracture zones? a) The parts that are not between segments of rift valleys. b) The parts between segments of rift valleys. c) Along the entire length of a given fracture zone. d) Only near subduction zones. ...
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This homework help was uploaded on 02/12/2008 for the course GEOG 201 taught by Professor Staff during the Fall '03 term at Cal Poly.

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Geol201 Geology f03 quiz1 - ‘1 our name J GEOL 201 Quiz#1...

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