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Dynamic Earth & Plates

Crust Composition

Minerals

Igneous Rocks

Metamorphic Rocks

Sedimentary Rocks

Earthquakes

Volcanology

Societies & Associations

Unions & Institutes

  Dynamic Earth & Plates:

	This Dynamic Earth: The Story of Plate Tectonics
	Hot Spots
	Cause of Plate Motion
	Historical Plate Motion
	Relative Plate Motion Calculator

  Crust Composition - Minerals

	Mineral of the Season
	Chemical Classes of Minerals
	Smithsonian Gem & Mineral Collection
	Amethyst Galleries, Inc.

  Igneous Rock

	Volcanoes of the World
	Index of Volcanic Features and Phenomena
	What is erupting now?
	Live Cam of Mt. Etna
	Volcanic Gas - Volcanic Hazards Fact Sheet
	DESCRIPTION - Lava
	DESCRIPTION - Lahars, Mudflows
	Hawaii Center for Volcano-logy
	Virtually Hawaii - Mirror
	Volcanoes and Global Climate Change
	Long Valley Caldera
	Pozzuoli (Campi Flegrei) near Naples, Italy
	Mt. St. Helens
	Assignment

  Metamorphic Rock

	Metamorphic Rocks Home Page
	Metamorphic Rock Textures
	Metamorphic Facies and Assignment

  Sediments and Sedimentary Rocks

Sedimentary Structures and Assignment

  Earthquakes

	World Seismicity, 1975-95
	How many earthquakes/ 1987-1996
	Current Seismicity Plots
	Plate Tectonics, the Cause of Earthquakes
	MODIFIED MERCALLI INTENSITY SCALE
	SASO's Top Ten List
	Make your own seismogram
	Location of Quake and Assignment
	Hazard Maps of Selected Areas in California
	Fault Creep in Hayward, CA
	Tsunami!: The WWW Tsunami Information Resource
	Bay Area Liquefaction Hazards
	How Safe is Your Home?

   Volcanology

• Intl Assoc of Volcanology & Chemistry of the Earth's Interior
• Center for the Study of Active Volcanoes
• Volcano World
• The Volcanic Homepage

   Societies, Associations, Unions and Institutes:

• Mineralogical Society of America
• American Association of Petroleum Geologists (GeoByte)
• American Crystallographic Association
• American Geological Institute
• American Geophysical Union
• Clay Minerals Society
• Computer Oriented Geological Society
• Environmental & Engineering Geophysical Society
• The Geochemical Society
• Geological Association of Canada
• Geological Society of America
• Geoscience Information Group (U.K.)
• Geoscience Information Society
• Geoscience & Remote Sensing Society
• International Association of Structural/Tectonic Geologists
• Mineralogical Society of America
• Society of Economic Geologists
• Society for Sedimentary Geology (SEPM)
• Rock Ware Geologic Software
• GISnet BBS
• Earth Science Journals
• Rob's Granite Page
• Structural Geology Resources
• Online Resources for Earth Scientists (ORES)
• Geologic Time Scale
• Geology Spell Checker