The Earth in Context

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• Crossword Puzzle
• Feature Articles
  
  

  1.1	Earth's Rotation
  1.2	Drilling the Crust

• Animations
  
  

  1.1	Doppler Effect
  1.2	Red Shift
  1.3	Solar System Formation

The Way the Earth Works: Plate Tectonics

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  2.1	Generating Earth's Magnetic Field
  2.2	Does Plate Tectonics Occur on Other Planets?
  2.3	Volatile Forces Shape the History of A Region

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  2.1	Wegener–Continental Drift
  2.2	Bullard Fit of Continents
  2.3	Magnetic Reversals
  2.4	Wandering Poles or Drifting Continents?
  2.5	Sea Floor Spreading
  2.6	Basic Plate Boundaries
  2.7	Formation of Ocean Crust
  2.8	Transform Faulting
  2.9	The Process of Subduction
  2.10	Hot Spot Volcanoes
  2.11	The Process of Rifting

Patterns in Nature: Minerals

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  3.1	Asbestos Woes
  3.2	Keeping Time with Quartz
  3.3	Geologists Take a Closer Look at the Holy Crown of France

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  3.1	Mineral Growth
  3.2	Crystallization

Up From the Inferno: Magma and Igneous Rocks

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  4.1	Yosemite National Park, California
  4.2	Pelé and the Origin of Hawaii

A Surface Veneer: Sediments and Sedimentary Rocks

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  5.1	Types of Sedimentary Rock

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  5.1	Formation of Cross Beds
  5.2	Transgression and Regression

Change in the Solid State: Metamorphic Roc

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  6.1	Shock Metamorphism

The Wrath of Vulcan: Volcanic Eruptions

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  7.1	The Amazing Amethyst of the Paraná Basalt Province

A Violent Pulse: Earthquakes

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  8.1	What's Happening at the Atomic Scale During Faulting?

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  8.1	Types of Faults
  8.2	Seismic Wave Motion
  8.3	How a Seismograph Works

Crags, Cracks, and Crumples: Crustal Deformation and Mountain Building

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  9.1	Living in the Mountains

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  9.1	Process of Folding

Deep Time: How Old is Old?

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  10.1	What is a Year?
  10.2	Walking Through Time

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  10.1	Geologic History
  10.2	Types of Unconformity

A Biography of Earth

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  11.1	The Moon: A Source of Insight into the Hadean Earth?
  11.2	The Cradle of Life
  11.3	Clues in the Fossil Record

Riches in Rock: Energy and Mineral Resources

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  12.1	Oil-Well Fires
  12.2	London Smog
  12.3	Alloys

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  12.1	Oil Formation and Trapping

Unsafe Ground: Landslides and Other Mass Movements

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  13.1	Energy and Work During Mass Movements
  13.2	Scars of Mars

Streams and Floods: The Geology of Running Water

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  14.1	Whitewater Kayaking
  14.2	Flood on Mars?

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  14.1	Evolution of a Meandering Stream

Restless Realm: Oceans and Coasts

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  15.1	Can We Drink the Ocean?
  15.2	Tides and the Length of the Day

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  15.1	Tides

A Hidden Reserve: Groundwater

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  16.1	Drinking Water

Dry Regions: The Geology of Deserts

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  17.1	Atmospheres of Other Planets
  17.2	Oscillations in Climate Triggered by El Niño
  17.3	The Basin and Range Province
  17.4	Navajo Sandstone

Amazing Ice: Glaciers and Ice Ages

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  18.1	The Discovery of Pleistocene Mammals
  18.2	A Speedy Glacier Teaches Geologists a Lesson

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  18.1	Glacial Advance and Retreat
  18.2	Milankovitch Cycles

Global Change in the Earth System

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  19.1	The Melting of Snowball Earth

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  19.1	Snowball Earth