Geology of Pre-Tertiary Rocks in the Northern Part of Yellowstone National Park, Wyon1ing by EDWARD T
GEOLOGY OF PRE- TERTIARY ROCKS IN THE NORTHERN PART OF YELLOWSTONE NATIONAL PARK, m WYOMING "* ,~ - DivMOri Coforado Distril'l r ih•." n' Geology of Pre-Tertiary Rocks in the Northern Part of Yellowstone National Park, Wyon1ing By EDWARD T. RUPPEL With a section on Tertiary laccoliths, sills, and stocks in and near the Gallatin Range, Yellowstone National Park GEOLOGY OF YELLOWSTONE NATIONAL PARK GEOLOGICAL SURVEY PROFESSIONAL PAPER 729-A UNITED STATES GOVERNMENT PRINTING OFFICE, WASHINGTON : 1972 UNITED STATES DEPARTMENT OF THE INTERIOR ROGERS C. B. MORTON, Secretary GEOLOGICAL SURVEY V. E. McKelvey, Director Library of Congress catalog-card No. 72-600268 For sale by the Superintendent of Documents, U.S. Government Printing Office Washington, D.C. 20402 Stock Number 2401-00242 Yellowstone National Park, the oldest of the areas set aside as part of the national park sys tem, lies amidst the Rocky Mountains in north western Wyoming and adjacent parts of Montana and Idaho. Embracing large, diverse, and complex geologic features, the park is in an area that is critical to the interpretation of many significant regional geologic problems. In order to provide basic data bearing on these problems, the U.S. Geological Survey in 1965 initiated a broad pro gram of comprehensive geologic and geophysical investigations within the park. This program was carried out with the cooperation of the National Park Service, and was also aided by the National Aeronautics and Space Administration, which supported the gathering of geologic information needed in testing and in interpreting results from various remote sensing devices. This professional paper chapter is one of a series of technical geo logic reports resulting from these investigations.
[Show full text]