Cretaceous glassy welded tuffs, Lewis and Clark County, Montana

• 1 June 1951
• journal article
• Published by American Journal of Science (AJS) in American Journal of Science
• Vol. 249  (6) , 439-443
• https://doi.org/10.2475/ajs.249.6.439

Abstract

Keywords

• CRETACEOUS GLASSY
• GLASSY WELDED
• CLARK COUNTY
• WELDED TUFFS
• MONTANA