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Petrology
Branch of earth sciences concerned with the origin, structure, alteration, and composition of rocks.
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Results 1 - 2 of 2 listed by similarity [list alphabetically]
Cretaceous magmatic rocks of Alaska [New Window]
Data derived from the 1994 map "Latest Cretaceous and Cenozoic magmatic rocks of Alaska" compiled by E.J. Moll-Stalcup, D.A. Brew, and T.L. Vallier, published (at 1:2,500,000 scale) in volume G-1 of "The Geology of Alaska" (GSA)
Generalized thermal maturity map of Alaska [New Window]
Data derived from the 1996 "Generalized Thermal Maturity Map of Alaska" compiled by M.J. Johnsson and D.G. Howell, published in USGS Bulletin 2142. Combines vitrinite reflectance and conodont alteration index in generalized units.

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