This is an article by Andrew Campbell from The University of Chicago Magazine, December 1995. The article is about the Chicago's Paleogeographic Atlas Project, an effort Alfred Ziegler began in 1975 to chart Earth's changing face, from more than 500 million years ago to the present. The article contains four maps from the project: A Permian Supercontinent, Computers Rebuild Climates of the Paleozoic, ... Full description.

This is the home page for Teacher Resources at the Museum of Paleontology at the University of California, Berkeley. The educational resources section contains lessons complete with learning objectives, background information for the teacher, links to other related lessons, and more. Included among these is Learning From the Fossil Record, Geoscience in Alaska; Understanding the California Landscape. ... Full description.

This is the web page for PLATES, a program of research into plate tectonic and geologic reconstructions at the University of Texas at Austin Institute for Geophysics. The page contains links to a brief overview of plate tectonics and plate reconstructions using the PLATES Project's global plate reconstruction model, in addition to movies in the format of powerpoint animations which can be downloaded ... Full description.

This site offers information on two aspects of paleoclimatology, North American drought and global warming. Each topic is addressed via a narrative background (The Story) and instrumental and paleoclimatic data (The Data). The section entitled North American Drought: A Paleo Perspective, describes drought in the historical and paleoclimatic records and is designed to help educate, inform and highlight ... Full description.

Paleo data come from natural sources such as tree rings, ice cores, corals, and ocean and lake sediments - and extend the archive of weather and climate back hundreds to millions of years. The National Oceanic and Atmospheric Administration's (NOAA) Paleoclimatology Program helps the world share scientific data and information related to climate, providing scientists with data and information they ... Full description.

This short Why Files article describes how a newer technique, used with radiocarbon dating of sediments from the Bering Strait, allowed scientists to confirm that a land bridge between present-day Alaska and Northeast Asia (Russia) was a probable route taken by human settlers who reached the Americas 12,000 years ago. The previous date was too old by several thousand years, indicating the land bridge ... Full description.

This clearinghouse offers various means by which users can access information and resources on dendrochronology and such associated fields as paleoclimatology, plant anatomy, palynology, systematics, taxonomy, cladistics, and the study of permineralized plants and petrified forests. The most basic method is by way of the Contents page, which alphabetically combines those items, concepts, keywords, ... Full description.

This Lake Mead National Recreation Area site contains park geology information, maps, photographs, visitor information, and teacher features (resources for teaching geology using national park examples). Park Geology is a guided tutorial, covering two billion years of geologic time from the Precambrian through the Cenozoic. Full description.

The New River is the oldest river in all of North America, being around 65 million years old. Rocks in the area date back to 330 million years old, and the river cuts across the Appalachian plateau. Included on this site are area activities, general geologic information about the history and formation of the rivers, maps, and links to other sites. Full description.

Called the "Land of the Standing-Up Rocks" by Chiricahua Apaches and later the "Wonderland of Rocks" by pioneers, this northwest corner of the Chiricahua Mountains harbors towering rock spires, massive stone columns, and balanced rocks weighing hundreds of tons that perch delicately on small pedestals. This website provides maps, visitor information, and links to additional resources relating to the ... Full description.