Laboratory Manual for Introductory Geology 4e

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FIGURE 8.1 An area in eastern Maine shown by different imaging methods. The scale bar and north arrow in part (a) apply to all four images.67°50’WBaskahegan Lake67°45’W 67°40’WLittleTomahLakeCODYVILLETomah MountainTOPSFIELD6200Jim200Fa rrow MountainBrownEastMusquashLakeFarrowLakeDog Brook45°25’NTopsfield100Brook1200BrookN200mikm300Flood200(a) Topographic map.(b) Aerial photograph.(c) Landsat image (artificial color). (d) Digital elevation model.8.2 WAYS TO PORTRAY THE EARTH’S SURFACE199
EXERCISE 8.1Which Image Works Best?Name:Course:Section:Date:(a) Examine the images in Figure 8.1 and use the table below to rank them on a scale of 1 to 4 by how well they showthe map elements indicated (1 is most effective and 4 is least effective). Ties are allowed.Map element Topographic map Aerial photograph Landsat image DEMLocationDistanceDirectionElevationChanges in slopeNames of features(b) Which of the images enables you to recognize the topography most easily? Why?(c) Which is least helpful in trying to visualize hills, valleys, and lakes? Why?(d) Erosional agents often produce an alignment of elongate hills, ridges, and valleys called the topographic grain.Which images show the topographic grain in this area most clearly? Once you’ve seen it on those images, can yourecognize it on the others? Use a marker or colored pencil to draw the alignment direction on each image.(e) Which images show highways most clearly?(f) Which images show unpaved lumber roads most clearly?(g) Study the details of what is shown in each image. Which image do you think is the oldest? The most recent? Explainyour reasoning.200 CHAPTER 8 STUDYING THE EARTH’S LANDFORMS: MAPS AND OTHER TOOLS
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LABORATORY MANUALFOR INTRODUCTORY G
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CONTENTSPreface viiCHAPTER 1Setting
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CHAPTER 8Studying the Earth’s Lan
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PREFACEThis laboratory manual is ba
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exercises interspersed throughout t
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Supplements(available for download
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ABOUT THE AUTHORSAllan Ludman is Pr
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LEARNINGOBJECTIVES■ Understand ch
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One way to obtain more data would b
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TABLE 1.1 Basic definitions●●
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EXERCISE 1.2Reservoirs in the Earth
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EXERCISE 1.4Sources of Heat for Geo
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1.3 Units for Geologic MeasurementB
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FIGURE 1.5 Measuring the volume of
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FIGURE 1.6 The white cliffs of Dove
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MileFIGURE 1.7 Methods for dealing
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FIGURE 1.8 An example of the princi
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EXERCISE 1.9Name:Course:How Long Do
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APPENDIX 1.1Metric-U.S. Customary C
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LEARNINGOBJECTIVES■■Become fami
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plate between two continents, conti
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FIGURE 2.4 The Earth’s major clim
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More clues soon came from seismolog
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FIGURE 2.8 Magnetic reversals of th
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FIGURE 2.11 Rates of motion of the
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EXERCISE 2.7A Tale of Two RidgesNam
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EXERCISE 2.8Continental Rifting: Sp
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Even without any earthquake informa
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EXERCISE 2.10Estimating the Amount
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2.5.5 Hot Spots and Hot-Spot Tracks
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EXERCISE 2.11Name:Course:Determinin
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EXERCISE 2.12Name:Course:Long-Term
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GEOTOURS EXERCISE 2Analyzing Plate
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LEARNINGOBJECTIVES■ Understand wh
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When a mineral grows without interf
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FIGURE 3.1 Specimens of the mineral
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3.4.5 HardnessThe hardness of a min
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FIGURE 3.4 Crystals of some common
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FIGURE 3.6 Cleavage in common miner
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3.4.9 MagnetismA few minerals are a
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EXERCISE 3.7Identifying MineralsNam
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The minerals and elements we most r
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EXERCISE 3.9Mineral Resources in Yo
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GEOTOURS EXERCISE 3Extracting Miner
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APPENDIX 3.1Mineral Identification
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APPENDIX 3.2Determinative Tables fo
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APPENDIX 3.2Determinative Tables fo
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APPENDIX 3.3Common Minerals and The
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MINERAL PROFILE DATA SHEET NameSamp
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LEARNINGOBJECTIVES■■Understand
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FIGURE 4.1 The rock cycle.Heating a
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FIGURE 4.3 Typical grain shapes.(a)
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EXERCISE 4.2Describing a Rock’s T
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EXERCISE 4.3Understanding the Origi
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EXERCISE 4.4Interpreting the Textur
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■ Hardness: Use a steel safety pi
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FIGURE 4.6 Flowchart for determinin
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4.8 The Economic Value of RocksMost
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FIGURE 4.7 Examples of igneous, sed
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GEOTOURS EXERCISE 4Deciphering Land
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LEARNINGOBJECTIVES■■Become fami
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crystalline rocks. Those that are s
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EXERCISE 5.3Interpreting Igneous Co
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FIGURE 5.4 Volcanic glasscontains n
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EXERCISE 5.5Interpreting Fragmental
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Felsic igneous rocks (from feldspar
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minerals melt, and (3) how plate-te
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EXERCISE 5.8Insights from Melting a
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EXERCISE 5.9Explaining Features of
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extreme crustal stretching has expo
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EXERCISE 5.13Interpreting Plate-Tec
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FIGURE 5.12 Distribution of volcano
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FIGURE 5.14 Comparison of areas in
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EXERCISE 5.15Stratovolcano Disaster
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GEOTOURS EXERCISE 5Exploring the Na
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IGNEOUS ROCKS STUDY SHEET NameSampl
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FIGURE 6.2 Chemical weathering of f
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Page 167 and 168: 6.3.3 Biochemical and Organic Sedim
Page 169 and 170: TABLE 6.2 Classification of common
Page 171 and 172: FIGURE 6.5 Flow chart for identifyi
Page 173 and 174: FIGURE 6.6 Sediment sorting.(a) Poo
Page 175 and 176: EXERCISE 6.7Recognizing Sediment De
Page 177 and 178: FIGURE 6.9 Sedimentary rock beds.(a
Page 179 and 180: FIGURE 6.12 Cross bedding, a type o
Page 181 and 182: FIGURE 6.15 Fossils reveal remarkab
Page 183 and 184: FIGURE 6.16 Examples of depositiona
Page 185 and 186: EXERCISE 6.10Interpreting Sedimenta
Page 187 and 188: SampleTexture(grain size, shape,sor
Page 189 and 190: LEARNINGOBJECTIVES■■Understand
Page 191 and 192: FIGURE 7.1 Examples of changes from
Page 193 and 194: FIGURE 7.2 Growth of metamorphic mi
Page 195 and 196: FIGURE 7.3 Types of stress.(a) Comp
Page 197 and 198: FIGURE 7.5 Photomicrographs of rock
Page 199 and 200: FIGURE 7.6 Varieties of gneiss form
Page 201 and 202: EXERCISE 7.2Identifying Metamorphic
Page 203 and 204: FIGURE 7.11 Settings of metamorphis
Page 205 and 206: EXERCISE 7.4Interpreting the Type o
Page 207 and 208: EXERCISE 7.5Name:Course:Index Miner
Page 209 and 210: Sample Minerals presentMETAMORPHIC
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Page 213: LEARNINGOBJECTIVES■■Become fami
Page 217 and 218: More sophisticated grid systems are
Page 219 and 220: EXERCISE 8.2The Latitude/Longitude
Page 221 and 222: EXERCISE 8.3Locating Points with th
Page 223 and 224: EXERCISE 8.4Locating Points with th
Page 225 and 226: But which north is north? No, this
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Page 229 and 230: 8.4 Vertical Exaggeration:A Matter
Page 231 and 232: GEOTOURS EXERCISE 8Locating Places
Page 233 and 234: LEARNINGOBJECTIVES■ Understand ho
Page 235 and 236: this information on the most recent
Page 237 and 238: FIGURE 9.5 Digital elevation model(
Page 239 and 240: 250300300FIGURE 9.7 Hachured contou
Page 241 and 242: 9.3.4 Rules and Applications of Con
Page 243 and 244: EXERCISE 9.6Name:Course:Survival of
Page 245 and 246: FIGURE 9.8 Map of the microwave tow
Page 247 and 248: FIGURE 9.11 The effect of vertical
Page 249 and 250: GEOTOURS EXERCISE 9Working with Top
Page 251 and 252: APPENDIX 9.1Topographic Map Symbols
Page 256 and 257: Interpreting GeologicStructures on
Page 258 and 259: of structures on the ground (the ma
Page 260 and 261: EXERCISE 10.2The Basic Types of Con
Page 262 and 263: EXERCISE 10.3Determining Strike and
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FIGURE 10.4 Block diagrams.Map view
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FIGURE 10.6 Block diagrams showing
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FIGURE 10.7 Hanging wall, footwall,
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is not the same as that of the beds
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EXERCISE 10.9Name:Course:Interpreti
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FIGURE 10.9 Geologic maps (continue
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EXERCISE 10.11Name:Course:Using Sym
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EXERCISE 10.12Name:Course:Construct
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EXERCISE 10.13Interpreting Simple G
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FIGURE 10.13 Structural control of
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10.6 Reading Real Geologic MapsYou
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FIGURE 10.14 (continued).Geologic M
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EXERCISE 10.18Making a Geologic Map
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GEOTOURS EXERCISE 10Name:Course:Und
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S-waves (FIG. 11.2b) are seismic wa
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FIGURE 11.4 Worldwide distribution
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FIGURE 11.5 Travel-time curves show
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EXERCISE 11.4Name:Course:Locating a
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EXERCISE 11.4Locating an Earthquake
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EXERCISE 11.4Name:Course:Locating a
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EXERCISE 11.5Name:Course:Determinin
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11.5 Predicting EarthquakeHazards:
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EXERCISE 11.7Locating Liquefaction
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After watching dramatic images of t
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APPENDIX 11.1Seismic Analysis Works
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LEARNINGOBJECTIVES■■Determine t
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EXERCISE 12.2Relative Ages in Cross
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EXERCISE 12.3Applying the Principle
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EXERCISE 12.4Name:Course:Using Sedi
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FIGURE 12.6 How the three kinds of
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EXERCISE 12.5Name:Course:Decipherin
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becoming extinct. When we find an i
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EXERCISE 12.6Name:Course:Dating Roc
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FIGURE 12.9 Changing parent:daughte
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EXERCISE 12.7Putting It All Togethe
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EXERCISE 12.8What Numerical Ages Ca
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EXERCISE 12.9Correlation (continued
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EXERCISE 12.10Cretaceous Paleogeogr
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Landscapes Formed13by StreamsStream
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EXERCISE 13.1Differences between St
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EXERCISE 13.2Why Some Streams Meand
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RFIGURE 13.5 The Genesee River sout
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EXERCISE 13.2Why Some Streams Meand
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FIGURE 13.8 A floodplain and its as
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ST. FRANCIS CO4070797064UNION PACIF
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1000Big900900B I G H I L LARKANSAS9
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FIGURE 13.13 Major drainage basins
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anchWTJ54MurphyNew BloomfieldTown65
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EXERCISE 13.6Recognizing Stages of
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MT T L E62446267DogRock757266170634
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13.7 When Streams Don’t Seemto Fo
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EXERCISE 13.7Deducing the History o
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13.8 When There’s Too Much Water:
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EXERCISE 13.9Estimating Potential F
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13.9 Streams, Society, and the Envi
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Groundwater as aLandscape Formerand
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EXERCISE 14.1Factors Affecting Infi
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EXERCISE 14.1Name:Course:Factors Af
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FIGURE 14.2 Groundwater landscape e
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60075000750600FIGURE 14.4 Karst top
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FIGURE 14.5 The water table separat
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EXERCISE 14.4Effects of a Changing
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100100100FIGURE 14.9 Karst topograp
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4400B a l d r i d g e C a n y o n42
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EXERCISE 14.7Name:Course:Environmen
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EXERCISE 14.8Name:Course:Environmen
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Glacial Landscapes15These jagged mo
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FIGURE 15.2 Mountain and continenta
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EXERCISE 15.1Comparison of Glaciers
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EXERCISE 15.3Erosional Features of
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15.3.2 Depositional LandscapesLands
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EXERCISE 15.4Landforms at the Termi
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900900800BOWEN1000700C R E E K900RO
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450400LEMON400ROADSLAYTON4504503Spo
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15.4 Landscapes Producedby Mountain
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The base level for a tributary stre
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3700380036003900Northwest BasinLake
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FIGURE 15.17 Atmospheric temperatur
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GEOTOURS EXERCISE 15Flowing Ice as
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GRID: 10/inch = 39,4/10cm
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Processes and Landforms16in Arid En
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FIGURE 16.2 Types of arid regions.(
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16.2 Processes in Arid RegionsNow l
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16.3 Progressive Evolution of Arid
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EXERCISE 16.3Interpreting Arid Land
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EXERCISE 16.3Interpreting Arid Land
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RiverGila85WatermanWashR A I N B O
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85130011001000FIGURE 16.8 Topograph
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FIGURE 16.10 Characteristics and ev
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400040004000L o w e V a l l e y4100
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FIGURE 16.13 Vulnerability to deser
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Shoreline Landscapes17Coastlines co
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FIGURE 17.1 Types of shorelines.(a)
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EXERCISE 17.1Erodibility and Stabil
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17.2.5 Emergent and Submergent Shor
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1382427FIGURE 17.5 Maine coastline
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EXERCISE 17.5Measuring Sea-Level (a
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FIGURE 17.7 Area just south of Lake
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17.3.2 Coastal Erosion and Depositi
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FIGURE 17.11 Erosional features of
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EXERCISE 17.7Erosional Processes an
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17.3.5 Depositional FeaturesPromine
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EXERCISE 17.9Depositional Processes
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FIGURE 17.18 The shoreline of theno
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FIGURE 17.21 Aerial view showing ho
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EXERCISE 17.10Name:Course:Unintende
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FIGURE 17.24 Counterclockwise wind
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EXERCISE 17.11Name:Course:Effects o
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FIGURE 17.27 Flooding caused by hur
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EXERCISE 17.12Effects of Storm Path
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GEOTOURS EXERCISE 17Understanding T
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LEARNINGOBJECTIVES■ Explain why p
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EXERCISE 18.1Humans and Earth Syste
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EXERCISE 18.2Short-Term Changes in
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Weather describes atmospheric condi
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FIGURE 18.5 The greenhouse effect.G
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EXERCISE 18.3Name:Course:Assessing
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FIGURE 18.8 Movement of water from
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FIGURE 18.10 Projected sea-level sc
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EXERCISE 18.4Effects of Sea-Level R
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FIGURE 18.13 Estimated human popula
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FIGURE 18.14 Two bird species hunte
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EXERCISE 18.6Name:Course:How Quickl
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GEOTOURS EXERCISE 18Inducing Change
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Courtesy of Allan Ludman; p. 162 (t
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270 280260240 250290 300Clay310 320
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Align with northern latitude tick m
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