Frontmatter

Frontmatter Introduction

Meet the Authors

Preface

1. THE EARTH SYSTEM

Chapter Introduction

The Scientific Method

Geology as a Science

Earth’s Shape and Surface

Peeling the Onion: Discovery of a Layered Earth

Earth as a System of Interacting Components

An Overview of Geologic Time

Welcome to Google Earth

Summary

Key Terms and Concepts

Practicing Geology Exercise

Exercises

Thought Questions

Media Support

2. PLATE TECTONICS: THE UNIFYING THEORY

Chapter Introduction

The Discovery of Plate Tectonics

The Plates and Their Boundaries

Rates and History of Plate Movements

The Grand Reconstruction

Mantle Convection: The Engine of Plate Tectonics

The Theory of Plate Tectonics and the Scientific Method

Summary

Key Terms and Concepts

Practicing Geology Exercise

Exercises

Thought Questions

Media Support

3. EARTH MATERIALS: MINERALS AND ROCKS

Chapter Introduction

What are Minerals?

The Structure of Matter

The Formation of Minerals

Classes of Rock-Forming Minerals

Physical Properties of Minerals

What Are Rocks?

The Rock Cycle: Interactions Between the Plate Tectonic and Climate Systems

Concentrations of Valuable Mineral Resources

Summary

Key Terms and Concepts

Practicing Geology Exercise

Exercises

Thought Questions

Media Support

4. IGNEOUS ROCKS: SOLIDS FROM MELTS

Chapter Introduction

How Do Igneous Rocks Differ from One Another?

How Do Magmas Form?

Magmatic Differentiation

Forms of Igneous Intrusions

Igneous Processes and Plate Tectonics

Summary

Key Terms and Concepts

Practicing Geology Exercise

Exercises

Thought Questions

Media Support

5. SEDIMENTATION: ROCKS FORMED BY SURFACE PROCESSES

Chapter Introduction

Surface Processes of the Rock Cycle

Sedimentary Basins: The Sinks for Sediments

Sedimentary Environments

Sedimentary Structures

Burial and Diagenesis: From Sediment to Rock

Classification of Siliciclastic Sediments and Sedimentary Rocks

Classification of Chemical and Biological Sediments and Sedimentary Rocks

Summary

Key Terms and Concepts

Practicing Geology Exercise

Exercises

Thought Questions

Media Support

6. METAMORPHISM: ALTERATION OF ROCKS BY TEMPERATURE AND PRESSURE

Chapter Introduction

Causes of Metamorphism

Types of Metamorphism

Metamorphic Textures

Regional Metamorphism and Metamorphic Grade

Plate Tectonics and Metamorphism

Summary

Key Terms and Concepts

Practicing Geology Exercise

Exercises

Thought Questions

Media Support

7. DEFORMATION: MODIFICATION OF ROCKS BY FOLDING AND FRACTURING

Chapter Introduction

Plate Tectonic Forces

Mapping Geologic Structure

How Rocks Deform

Basic Deformation Structures

Styles of Continental Deformation

Unraveling Geologic History

Summary

Key Terms and Concepts

Practicing Geology Exercise

Exercises

Thought Questions

Media Support

8. CLOCKS IN ROCKS: TIMING THE GEOLOGIC RECORD

Chapter Introduction

Reconstructing Geologic History from the Stratigraphic Record

The Geologic Time Scale: Relative Ages

Measuring Absolute Time with Isotopic Clocks

The Geologic Time Scale: Absolute Ages

Recent Advances in Timing the Earth System

Summary

Key Terms and Concepts

Practicing Geology Exercise

Exercises

Thought Questions

Media Support

9. EARLY HISTORY OF THE TERRESTRIAL PLANETS

Chapter Introduction

Origin of the Solar System

Early Earth: Formation of a Layered Planet

Diversity of the Planets

What’s in a Face? The Age and Complexion of Planetary Surfaces

Mars Rocks!

Exploring the Solar System and Beyond

Summary

Key Terms and Concepts

Practicing Geology Exercise

Exercises

Thought Questions

Media Support

10. HISTORY OF THE CONTINENTS

Chapter Introduction

The Structure of North America

Tectonic Provinces Around the World

How Continents Grow

How Continents Are Modified

The Origins of Cratons

The Deep Structure of Continents

Summary

Key Terms

Practicing Geology Exercise

Exercises

Thought Questions

Media Support

11. GEOBIOLOGY: LIFE INTERACTS WITH EARTH

Chapter Introduction

The Biosphere as a System

Microorganisms: Nature’s Tiny Chemists

Geobiological Events in Earth’s History

Evolutionary Radiations and Mass Extinctions

Astrobiology: The Search for Extraterrestrial Life

Summary

Key Terms and Concepts

Practicing Geology Exercise

Exercises

Thought Questions

Media Support

12. VOLCANOES

Chapter Introduction

Volcanoes as Geosystems

Lavas and Other Volcanic Deposits

Eruptive Styles and Landforms

Interactions of Volcanoes with Other Geosystems

The Global Pattern of Volcanism

Volcanism and Human Affairs

Summary

Key Terms and Concepts

Practicing Geology Exercise

Exercises

Thought Questions

Media Support

13. EARTHQUAKES

Chapter Introduction

What Is an Earthquake?

How Do We Study Earthquakes?

GPS Measurements and “Silent” Earthquakes

Earthquakes and Patterns of Faulting

Intraplate Earthquakes

Earthquake Hazards and Risks

Earthquake Early Warning Systems

Can Earthquakes Be Predicted?

Summary

Key Terms and Concepts

Practicing Geology Exercise

Exercises

Thought Questions

Media Support

14. EXPLORING EARTH’S INTERIOR

Chapter Introduction

Exploring Earth’s Interior with Seismic Waves

Layering and Composition of Earth’s Interior

Earth’s Internal Temperature

Visualizing Earth’s Three-Dimensional Structure

Earth’s Magnetic Field and The Geodynamo

Summary

Key Terms and Concepts

Practicing Geology Exercise

Exercises

Thought Questions

Media Support

15. THE CLIMATE SYSTEM

Chapter Introduction

Components of the Climate System

The Greenhouse Effect

Climate Variation

The Carbon Cycle

Twentieth-Century Warming: Fingerprints of Anthropogenic Global Change

Summary

Key Terms and Concepts

Practicing Geology Exercise

Exercises

Thought Questions

Media Support

16. WEATHERING, EROSION, AND MASS WASTING: Interactions Between the Climate and Plate Tectonic Systems

Chapter Introduction

Weathering, Erosion, Mass Wasting, and the Rock Cycle

Controls on Weathering

Chemical Weathering

Physical Weathering

Soils: The Residue of Weathering

Mass Wasting

Classification of Mass Movements

Understanding the Origins of Mass Movements

Summary

Key Terms and Concepts

Practicing Geology Exercise

Exercises

Thought Questions

Media Support

17. THE HYDROLOGIC CYCLE AND GROUNDWATER

Chapter Introduction

The Geologic Cycling of Water

Hydrology and Climate

The Hydrology of Groundwater

Erosion by Groundwater

Water Quality

Water Deep in the Crust

Summary

Key Terms and Concepts

Practicing Geology Exercise

Exercises

Thought Questions

Media Support

18. STREAM TRANSPORT: FROM MOUNTAINS TO OCEANS

Chapter Introduction

The Form of Streams

Where Do Channels Begin? How Running Water Erodes Soil and Rock

How Currents Flow and Transport Sediment

Deltas: The Mouths of Rivers

Streams as Geosystems

Summary

Key Terms and Concepts

Practicing Geology Exercise

Exercises

Thought Questions

Media Support

19. WINDS AND DESERTS

Chapter Introduction

Global Wind Patterns

Wind as a Transport Agent

Wind as an Agent of Erosion

Wind as a Depositional Agent

The Desert Environment

Summary

Key Terms and Concepts

Practicing Geology Exercise

Exercises

Thought Questions

Media Support

20. COASTLINES AND OCEAN BASINS

Chapter Introduction

How Ocean Basins Differ from Continents

Coastal Processes

The Shaping of Shorelines

Continental Margins

Topography of the Deep Seafloor

Ocean Sedimentation

Summary

Key Terms and Concepts

Practicing Geology Exercise

Exercises

Thought Questions

21. GLACIERS: THE WORK OF ICE

Chapter Introduction

Ice as a Rock

How Glaciers Form

How Glaciers Move

Glacial Landscapes

Glacial Cycles and Climate Change

Summary

Key Terms and Concepts

Practicing Geology Exercise

Exercises

Thought Questions

Media Support

22. LANDSCAPE DEVELOPMENT

Chapter Introduction

Topography, Elevation, and Relief

Landforms: Features Sculpted by Erosion and Sedimentation

How Interacting Geosystems Control Landscapes

Models of Landscape Development

Summary

Key Terms and Concepts

Practicing Geology Exercise

Exercises

Thought Questions

23. THE HUMAN IMPACT ON EARTH’S ENVIRONMENT

Chapter Introduction

Civilization as a Global Geosystem

Fossil-Fuel Resources

Alternative Energy Resources

Global Change

Earth System Engineering and Management

Summary

Key Terms and Concepts

Exercises

Thought Questions

Media Support

APPENDIX

Appendix 1: Conversion Factors

Appendix 2: Numerical Data Pertaining to Earth

Appendix 3: Chemical Reactions

Appendix 4: Properties of the Most Common Minerals of Earth’s Crust

Appendix 5: Practicing Geology Exercises: Answers to Problems

INDEX

Index