USGS - science for a changing world

Science Topics

Maps, Imagery, and Publications Hazards Newsroom Education Jobs Partnerships Library About USGS Podcasts/RSS
You are here: Sciences > Earth sciences > Geology
Help
Petrology
Branch of earth sciences concerned with the origin, structure, alteration, and composition of rocks.
Subtopics:
(none)
Related topics:

Results 1 - 2 of 2 listed by similarity [list alphabetically]
North Cascades National Park geology, a mountain mosaic [New Window]
Homepage for information on geology of the North Cascades National Park in the state of Washington. Includes links to geologic story, geologic field trips, geologic maps, plate tectonics, rocks and minerals, geologic time, and glossary.
Spectroscopy of rocks and minerals, and principles of spectroscopy [New Window]
Technical review of the principles of spectroscopy and its use in identifying minerals and other materials.


Alphabetical Index of Topics a b c d e f g h i j k l m n o p q r s t u v w x y z

Accessibility FOIA Privacy Policies and Notices

Take Pride in America logo USA.gov logo U.S. Department of the Interior | U.S. Geological Survey
URL: http://www.usgs.gov/science//science/science.php?term=883
Page Contact Information: Ask USGS