IN spite of the revolution that was recently effected among the Government geological surveys of the American Union, provision has wisely been made for the completion of the Reports of the different ...

It's time to redraw the map of the world during the reign of the dinosaurs, two scientists say. Picture the U.S. West Coast as a torturous tectonic boundary, similar to Australia and Southeast Asia ...

Boulder, Colo. – The last definitive geologic map of North America was published before the theory of plate tectonics was widely accepted, back in the days when impact craters were known simply as ...

Plan for the Subject-Bibliography of North American Geology, by G. K. Gilbert, of the U.S. Geological Survey.—The United States Geological Survey is engaged on a Bibliography of North American Geology ...

A deep heat mass beneath the Appalachians appears to have started near a rift between Greenland and North America. Its slow southward journey reveals that ancient tectonic events still influence the ...

"This is v. K-1 of the Geological Society of America's Geology of North America series produced as part of the Decade of North American Geology Project." "Cat. No ...

An immense pocket of hot rock deep beneath the Appalachians may be a wandering relic of the breakup between Greenland and ...

Within its broader portfolio, four properties will be the focus for 2026, each hosting mineral occurrences of rare earth elements and niobium within pegmatites and syenites, with historic highlight ...