The measurable, definable properties and features of the earth.
What on Earth is plate tectonics? [ More info] Discussion and diagrams on plate tectonics and the structure of the Earth for beginners with link to a detailed version: This Dynamic Earth for more information.
Woods Hole Coastal and Marine Geology Field Center [ More info] Site with links to projects of the field center of the Woods Hole Coastal Marine Geology Program on underwater areas between shorelines and the deep ocean, off the U.S. East Coast, the Gulf of Mexico, and in parts of the Caribbean and Great Lakes.
Yosemite Valley geologic story [ More info] Site describes the present understanding of the various geologic processes that contributed to the valley's creation. Links to Yosemite Valley's geologic maps.
usSEABED (marine sediment and rock distribution) [ More info] Data on sediment and rock distributions in the waters off the United States, shown using an internet map service with links to downloadable data files
Alphabetical Index of Topics
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