Petrology of the Crazy Mountains dike swarm and geochronology of associated sills, south-central Montana /
Du Bray, E. A.
Harlan, Stephen S.
Wilson, Anna B.(Anna Burack)
Geological Survey (U.S.)
[Reston, Va.] : U.S. Department of the Interior, U.S. Geological Survey,
2006.
Includes bibliographical references.
Petrology
Dikes (Geology)
Historical geology
Sills (Geology)
Also available via Internet.