Title: ⁴⁰Ar/³⁹Ar ages of some Challis Volcanic Group rocks and the initiation of Tertiary sedimentary basins in southwestern Montana
First published: 1996
Subjects: Argon-argon dating, Geology, Stratigraphic, Igneous Rocks, Rocks, Igneous, Stratigraphic Geology, Igneous rocks
Places: Montana
Time periods: Tertiary
LC classification: QE75 .B9 no. 2132, QE461 .B9 no. 2132