Montana High-Potassium Igneous Province
B. Carter Hearn, F.O. Dudas, D.H. Eggler, D.W. Hyndman, H.E. O'Brien, I.S. McCallum, A.J. Irving, R.B. Berg 1989 American Geophysical Union Field Trip Guidebook T346

This field trip guidebook was published as part of the 28th International Geological Congress and features six road logs to major and minor igneous centers in central Montana. This broad area has been of particular interest to petrologists for more than 90 years because of the abundance of alkalic rocks, including some rare varieties, that were described in several reconnaissance studies in the late 19th century and three decades of modern petrologic, isotopic, and geophysical studies. Access is relatively easy and the rocks are well exposed.

ISBN 0-87590-638-9
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This resource is referenced here:

• Integrating Research and Education:Montana Geoheritage Project:Montana-Yellowstone Geologic Field Guide Database:MT Field Guides: Crazy Mountains, Montana
• Integrating Research and Education:Montana Geoheritage Project:Montana-Yellowstone Geologic Field Guide Database:MT Field Guides: Geology of the Highwood Mountains, Montana: A Survey of Magma Types and Sources
• Integrating Research and Education:Montana Geoheritage Project:Montana-Yellowstone Geologic Field Guide Database:MT Field Guides: Shonkin Sag and Square Butte Laccoliths, Montana
• Integrating Research and Education:Montana Geoheritage Project:Montana-Yellowstone Geologic Field Guide Database:MT Field Guides: Bearpaw Mountains, Montana
• Integrating Research and Education:Montana Geoheritage Project:Montana-Yellowstone Geologic Field Guide Database:MT Field Guides: Missouri Breaks Diatremes, Montana
• Integrating Research and Education:Montana Geoheritage Project:Montana-Yellowstone Geologic Field Guide Database:MT Field Guides: Smoky Butte Lamproite, Montana

Subject: Geoscience:Geology:Igneous and Metamorphic Petrology:Igneous Rocks, Igneous Processes, Geoscience:Geology:Igneous and Metamorphic Petrology, Sedimentary Geology, Tectonics, Igneous and Metamorphic Petrology:Geochemistry, Igneous Associations and Tectonic Settings, Volcanology, Geoscience:Geology:Geochemistry:Elements, Radioisotopes
Resource Type: Scientific Resources:Research Results, Audio/Visual:Images/Illustrations, Maps, Activities:Field Activity:Field trip , Book
Special Interest: Field-Based Teaching and Learning
Theme: Teach the Earth:Course Topics:Sedimentary Geology, Teach the Earth:Enhancing your Teaching:Teaching in the Field, Teach the Earth:Course Topics:Petrology, Geochemistry, Teach the Earth:Teaching Topics:Plate Tectonics