TY  - BOOK
AU  - Harlan,Stephen S.
ED  - Geological Survey (U.S.)
TI  - 40Ar/39Ar and K-Ar geochronology and tectonic significance of the Upper Cretaceous Adel Mountain volcanics and spatially associated Tertiary igneous rocks, northwestern Montana
T2  - Professional paper
PY  - 2005///
CY  - Reston, Va., Denver, CO
PB  - U.S. Geological Survey, U.S. Geological Survey, Information Services [distributor]
KW  - Geochronometry
KW  - Montana
KW  - Craig Region
KW  - Rocks, Igneous
KW  - Geology, Stratigraphic
KW  - Cretaceous
KW  - Tertiary
KW  - Radioactive dating
N1  - Includes bibliogr.l references (p. 18-19)
ER  -