Physical geology : investigating earth /
Reed Wicander, James Monroe
- First edition
- xiv, 497 pages : illustrations (chiefly color), color maps ; 28 cm
Includes index.
Preface Acknowledgments Author Biography Chapter 1. Understanding Earth: A Dynamic and Evolving Planet 1.1. Introduction 1.2. What Is Geology? 1.3. Geology and the Formulation of Theories 1.4. How Does Geology Relate to the Human Experience? 1.5. How Does Geology Affect Our Everyday Lives? 1.5a. Natural Disasters 1.5b. Our Role as Decision Makers, Consumers, and Citizens 1.6. Global Geologic and Environmental Issues Facing Humankind 1.7. Origin of the Universe and Solar System, and Earth’s Place in Them 1.7a. Origin of the Universe: Did It Begin with a Big Bang? 1.7b. Our Solar System: Its Origin and Evolution 1.7c. Earth: Its Place in Our Solar System 1.8. Why Earth Is a Dynamic and Evolving Planet 1.8a. Plate Tectonic Theory 1.9. The Rock Cycle 1.9a. The Relationship Between Plate Tectonics and the Rock Cycle 1.10. Organic Evolution and Plate Tectonics 1.11. Geologic Time and Uniformitarianism 1.12. How Is the Study of Geology Beneficial to Us? Key Concepts Review Important Terms Review Questions What Would You Do? Chapter 2. Plate Tectonics: A Unifying Theory 2.1. Introduction 2.2. Early Ideas about Continental Drift 2.2a. Alfred Wegener and the Continental Drift Hypothesis 2.3. What Is the Evidence Supporting Continental Drift? 2.3a. Continental Fit 2.3b. Similarity of Rock Sequences and Mountain Ranges 2.3c. Glacial Evidence 2.3d. Fossil Evidence 2.4. Features of the Seafloor 2.4a. The Continental Shelf, Slope, and Rise 2.4b. Submarine Fans and Submarine Canyons 2.4c. Abyssal Plains, Oceanic Ridges, Submarine Hydrothermal Vents, and Oceanic Trenches 2.4d. Seafloor Fractures, Seamounts, Guyots, and Aseismic Ridges 2.4e. Continental Margins 2.5. Earth’s Magnetic Field 2.5a. Inclination and Declination of the Magnetic Field 2.6. Paleomagnetism and Polar Wandering 2.7. Seafloor Spreading 2.8. Plate Tectonics: A Unifying Theory 2.9. The Three Types of Plate Boundaries 2.9a. Divergent Boundaries 2.9b. Convergent Boundaries 2.9c. Transform Boundaries 2.10. Hot Spots and Mantle Plumes 2.11. Plate Movement and Motion 2.12. The Driving Mechanism of Plate Tectonics 2.13. Plate Tectonics and the Distribution of Natural Resources 2.13a. Petroleum 2.13b. Mineral Deposits 2.14. Plate Tectonics and the Distribution of Life Key Concepts Review Important Terms Review Questions What Would You Do? Chapter 3. Minerals: The Building Blocks of Rocks 3.1. Introduction 3.2. What Is Matter? 3.2a. Atoms and Elements 3.2b. Bonding and Compounds 3.3. What Are Minerals? 3.3a. Naturally Occurring Inorganic Substances 3.3b. Mineral Crystals 3.3c. Chemical Composition of Minerals 3.3d. Physical Properties of Minerals 3.4. Mineral Groups Recognized by Geologists 3.4a. Silicate Minerals 3.4b. Carbonate Minerals 3.4c. Other Mineral Groups 3.5. Physical Properties of Minerals 3.5a. Luster and Color 3.5b. Crystal Form 3.5c. Cleavage and Fracture 3.5d. Hardness 3.5e. Specific Gravity (Density) 3.5f. Other Useful Mineral Properties 3.6. Rock-Forming Minerals 3.7. How Do Minerals Form? 3.8. Natural Resources and Reserves Key Concepts Review Important Terms Review Questions What Would You Do? Chapter 4. Igneous Rocks and Intrusive Igneous Activity 4.1. Introduction 4.2. The Properties and Behavior of Magma and Lava 4.2a. Composition of Magma 4.2b. How Hot Are Magma and Lava? 4.2c. Viscosity: Resistance to Flow 4.3. How Does Magma Originate and Change? 4.3a. Bowen’s Reaction Series 4.3b. The Origin of Magma at Spreading Ridges 4.3c. Subduction Zones and the Origin of Magma 4.3d. Hot Spots and the Origin of Magma 4.3e. Compositional Changes in Magma 4.4. Characteristics and Classification of Igneous Rocks 4.4a. Igneous Rock Textures 4.4b. Composition of Igneous Rocks 4.4c. Classifying Igneous Rocks 4.5. Intrusive Igneous Bodies: Plutons 4.5a. Dikes and Sills 4.5b. Laccoliths 4.5c. Volcanic Pipes and Necks 4.5d. Batholiths and Stocks 4.6. The Origin of Batholiths Key Concepts Review Important Terms Review Questions What Would You Do? Chapter 5. Volcanoes and Volcanism 5.1. Introduction 5.2. Volcanoes and Volcanism 5.2a. Volcanic Gases 5.2b. Lava Flows 5.2c. Pyroclastic Materials 5.3. Types of Volcanoes 5.3a. Shield Volcanoes 5.3b. Cinder Cones 5.3c. Composite Volcanoes (Stratovolcanoes) 5.3d. Lava Domes 5.4. Other Volcanic Landforms 5.4a. Fissure Eruptions and Basalt Plateaus 5.4b. Pyroclastic Sheet Deposits 5.5. Distribution of Volcanoes 5.6. Plate Tectonics, Volcanoes, and Plutons 5.6a. Igneous Activity at Divergent Plate Boundaries 5.6b. Igneous Activity at Convergent Plate Boundaries 5.6c. Intraplate Volcanism 5.7. Volcanic Hazards, Volcanic Monitoring, and Forecasting Eruptions 5.7a. How Large Are Eruptions, and How Long Can They Last? 5.7b. Is It Possible to Forecast Eruptions? Key Concepts Review Important Terms Review Questions What Would You Do? Chapter 6. Weathering, Erosion, and Soil 6.1. Introduction 6.2. How Are Earth Materials Altered? 6.3. Mechanical Weathering—Disaggregation of Earth Materials 6.3a. Frost Action 6.3b. Pressure Release 6.3c. Thermal Expansion and Contraction 6.3d. Growth of Salt Crystals 6.3e. Animal and Plant Activity 6.4. Chemical Weathering—Decomposition of Earth Materials 6.4a. Solution 6.4b. Oxidation 6.4c. Hydrolysis 6.4d. The Rate of Chemical Weathering 6.5. Soil and Its Origin 6.5a. The Soil Profile 6.5b. Factors That Control Soil Formation 6.5c. Expansive Soils 6.6. Soil Degradation 6.6a. Soil Erosion 6.6b. Chemical and Physical Soil Degradation 6.7. Weathering and Resources Key Concepts Review Important Terms Review Questions What Would You Do? Chapter 7. Sediment and Sedimentary Rocks 7.1. Introduction 7.2. Sediment Transport and Deposition 7.2a. Sediment Transport 7.2b. Deposition and Depositional Environments 7.3. How Does Sediment Become Sedimentary Rock? 7.3a. Compaction 7.3b. Cementation 7.4. Types of Sedimentary Rocks 7.4a. Detrital Sedimentary Rocks 7.4b. Chemical and Biochemical Sedimentary Rocks 7.5. Sedimentary Facies 7.5a. Marine Transgressions and Regressions 7.5b. Causes of Marine Transgressions and Regressions 7.6. Reading the Story Preserved in Sedimentary Rocks 7.6a. Sedimentary Structures 7.6b. Fossils: Remains and Traces of Ancient Life 7.6c. Determining the Environment of Deposition 7.7. Important Resources in Sediments and Sedimentary Rocks 7.7a. Coal 7.7b. Petroleum and Natural Gas 7.7c. Uranium 7.7d. Banded Iron Formation Key Concepts Review Important Terms Review Questions What Would You Do? Chapter 8. Metamorphism and Metamorphic Rocks 8.1. Introduction 8.2. The Agents of Metamorphism 8.2a. Heat 8.2b. Pressure 8.2c. Fluid Activity 8.3. The Three Types of Metamorphism 8.3a. Contact Metamorphism 8.3b. Dynamic Metamorphism 8.3c. Regional Metamorphism 8.4. Index Minerals and Metamorphic Grade 8.5. How Are Metamorphic Rocks Classified? 8.5a. Foliated Metamorphic Rocks 8.5b. Nonfoliated Metamorphic Rocks 8.6. Metamorphic Zones and Facies 8.7. Plate Tectonics and Metamorphism 8.8. Metamorphism and Natural Resources Key Concepts Review Important Terms Review Questions What Would You Do? Chapter 9. Earthquakes 9.1. Introduction 9.2. Elastic Rebound Theory 9.3. Seismology 9.3a. The Focus and Epicenter of an Earthquake 9.4. Where Do Earthquakes Occur, and How Often? 9.5. Seismic Waves 9.5a. Body Waves 9.5b. Surface Waves 9.6. Locating an Earthquake’s Epicenter 9.7. Measuring the Strength of an Earthquake 9.7a. Intensity 9.7b. Magnitude 9.8. The Destructive Effects of Earthquakes 9.8a. Ground Shaking 9.8b. Fire 9.8c. Tsunami: Killer Waves 9.8d. Ground Failure 9.9. Earthquake Prediction Key Concepts Review Important Terms Review Questions What Would You Do? Chapter 10. Earth’s Interior 10.1. Introduction 10.2. Earth’s Size, Density, and Internal Structure 10.2a. Seismic Waves and Earth’s Interior 10.2b. Seismic Tomography and Earth’s Interior 10.3. Earth’s Core 10.3a. Discovery of Earth’s Core 10.3b. Density and Composition of the Core 10.4. Earth’s Mantle 10.4a. The Moho 10.4b. The Mantle’s Structure, Density, and Composition 10.5. Earth’s Crust 10.5a. Continental Crust 10.5b. Oceanic Crust 10.6. Earth’s Internal Heat and Heat Flow 10.7. Gravity and Its Determination 10.7a. Gravity 10.7b. Gravity Anomalies 10.8. The Principle of Isostasy 10.8a. Isostatic Rebound Key Concepts Review Important Terms Review Questions What Would You Do? Chapter 11. Deformation, Mountain Building, and the Continents 11.1. Introduction 11.2. Rock Deformation 11.2a. Stress and Strain 11.2b. Types of Strain 11.3. Strike and Dip: The Orientation of Deformed Rock Layers 11.4. Deformation and Geologic Structures 11.4a. Folded Rock Layers 11.4b. Joints 11.4c. Faults 11.4d. Dip-Slip Faults 11.4e. Strike-Slip Faults 11.4f. Oblique-Slip Faults 11.5. Deformation and the Origin of Mountains 11.5a. Types of Mountains 11.5b. Plate Tectonics and Mountain Building 11.5c. Terranes and the Origin of Mountains Key Concepts Review Important Terms Review Questions What Would You Do? Chapter 12. Mass Wasting 12.1. Introduction 12.2. Factors That Influence Mass Wasting 12.2a. Slope Angle 12.2b. Weathering and Climate 12.2c. Water Content 12.2d. Vegetation 12.2e. Overloading 12.2f. Geology and Slope Stability 12.2g. Triggering Mechanisms 12.3. Types of Mass Wasting 12.3a. Falls 12.3b. Slides 12.3c. Flows 12.3d. Complex Movements 12.4. Recognizing and Minimizing the Effects of Mass Wasting Key Concepts Review Important Terms Review Questions What Would You Do? Chapter 13. Running Water 13.1. Introduction 13.2. Water on Earth 13.2a. The Hydrologic Cycle 13.2b. Fluid Flow 13.3. Running Water 13.3a. Sheet Flow and Channel Flow 13.3b. Stream Gradient 13.3c. Stream Velocity and Discharge 13.4. Running Water, Erosion, and Sediment Transport 13.5. Deposition by Running Water 13.5a. The Deposits of Braided Streams 13.5b. Meandering Streams and Their Deposits 13.5c. Floodplain Deposits 13.5d. Deltas 13.5e. Alluvial Fans 13.6. Flood Control and Prediction 13.7. Drainage Systems 13.7a. The Significance of Base Level 13.7b. Graded Streams 13.8. The Evolution of Valleys 13.8a. Stream Terraces 13.8b. Incised Meanders 13.8c. Superposed Streams 13.9. Valley Development – A Summary Key Concepts Review Important Terms Review Questions What Would You Do? Chapter 14. Groundwater 14.1. Introduction 14.2. Groundwater and the Hydrologic Cycle 14.3. Porosity and Permeability 14.4. The Water Table 14.5. Groundwater Movement 14.6. Springs, Water Wells, and Artesian Systems 14.6a. Springs 14.6b. Water Wells 14.6c. Artesian Systems 14.7. Groundwater Erosion and Deposition 14.7a. Sinkholes and Karst Topography 14.7b. Caves and Cave Deposits 14.8. Modifications of the Groundwater System and Its Effects 14.8a. Lowering the Water Table 14.8b. Saltwater Intrusion 14.8c. Subsidence 14.8d. Groundwater Contamination 14.8e. Groundwater Quality 14.9. Hydrothermal Activity 14.9a. Hot Springs 14.9b. Geysers 14.9c. Geothermal Energy Key Concepts Review Important Terms Review Questions What Would You Do? Chapter 15. Glaciers and Glaciation 15.1. Introduction 15.2. Glaciers and Glaciation 15.2a. Glaciers—Part of the Hydrologic Cycle 15.2b. Glacial Formation and Movement 15.2c. Distribution of Glaciers 15.3. Types of Glaciers 15.3a. Valley Glaciers 15.3b. Continental Glaciers and Ice Caps 15.4. The Glacial Budget—Accumulation and Wastage 15.4a. How Fast Do Glaciers Move? 15.4b. Glacial Surges 15.5. Glacial Erosion and Transport 15.5a. Erosion by Valley Glaciers 15.5b. Continental Glaciers and Erosional Landforms 15.6. Glacial Deposits 15.6a. Glacial Drift 15.6b. Landforms Composed of Till 15.6c. Landforms Composed of Stratified Drift 15.6d. Glacial Lake Deposits 15.7. The Ice Age 15.7a. Pleistocene Climates 15.7b. Pluvial and Proglacial Lakes 15.7c. Glaciation and Changes in Sea Level 15.7d. Glaciers and Isostasy 15.8. What Causes Ice Ages? 15.8a. The Milankovitch Theory 15.8b. Short-Term Climatic Events 15.9. Glaciers Today Key Concepts Review Important Terms Review Questions What Would You Do? Chapter 16. The Work of Wind and Deserts 16.1. Introduction 16.2. Sediment Transport by Wind 16.2a. Bed Load 16.2b. Suspended Load 16.3. Wind Erosion 16.3a. Abrasion 16.3b. Deflation 16.4. Wind Deposits 16.4a. The Formation and Migration of Dunes 16.4b. Dune Types 16.4c. Loess 16.5. Air-Pressure Belts and Global Wind Patterns 16.6. The Distribution of Deserts 16.7. Characteristics of Deserts 16.7a. Temperature, Precipitation, and Vegetation 16.7b. Weathering and Soils 16.7c. Mass Wasting, Streams, and Groundwater 16.7d. Wind 16.8. Desert Landforms Key Concepts Review Important Terms Review Questions What Would You Do? Chapter 17. Oceans, Shorelines, and Shoreline Processes 17.1. Introduction 17.2. Seawater, Oceanic Circulation, and Seafloor Sediments 17.2a. Seawater—Its Composition 17.2b. Oceanic Circulation 17.2c. Seafloor Sediments 17.3. Tides, Waves, and Nearshore Currents 17.3a. Tides 17.3b. Waves 17.3c. Nearshore Currents 17.4. Shoreline Erosion 17.4a. Wave-Cut Platforms 17.4b. Sea Caves, Sea Arches, and Sea Stacks 17.5. Shoreline Deposition 17.5a. Beaches 17.5b. Seasonal Changes in Beaches 17.5c. Spits, Baymouth Bars, and Tombolos 17.5d. Barrier Islands 17.6. The Nearshore Sediment Budget 17.7. Types of Coasts 17.7a. Depositional and Erosional Coasts 17.7b. Submergent and Emergent Coasts 17.8. The Perils of Living along a Shoreline 17.8a. Storm Waves and Coastal Flooding 17.8b. Coastal Management as Sea Level Rises 17.9. Resources from the Oceans Key Concepts Review Important Terms Review Questions What Would You Do? Chapter 18. Geologic Time: Concepts and Principles 18.1. Introduction 18.2. How Geologic Time Is Measured 18.3. Early Concepts of Geologic Time and Earth’s Age 18.4. James Hutton and the Recognition of Geologic Time 18.5. Relative Dating Methods 18.5a. Fundamental Principles of Relative Dating 18.5b. Unconformities 18.5c. Applying the Principles of Relative Dating 18.6. Correlating Rock Units 18.6a. Subsurface Correlation 18.7. Numerical Dating Methods 18.7a. Radioactive Decay and Half-Lives 18.7b. Sources of Uncertainty 18.7c. Long-Lived Radioactive Isotope Pairs 18.7d. Other Radioactive Isotope Pairs 18.7e. Fission-Track Dating 18.7f. Radiocarbon and Tree-Ring Dating 18.8. Development of the Geologic Time Scale 18.9. Stratigraphy and Stratigraphic Terminology 18.10. Geologic Time and Climate Change Key Concepts Review Important Terms Review Questions What Would You Do? Appendix A. English-Metric Conversion Chart Appendix B. Mineral Identification Tables
Physical Geology: Investigating Earth The overarching goal of Physical Geology: Investigating Earth is to provide students with a basic understanding of geology and its processes and, most importantly, with an understanding of how geology relates to the human experience, that is, how geology affects individuals, society, and nation-states.