Cover image for Stratigraphic significance and petrology of phosphate nodules at base of Niobrara Formation, east flank of Black Hills, South Dakota
Stratigraphic significance and petrology of phosphate nodules at base of Niobrara Formation, east flank of Black Hills, South Dakota
Title:
Stratigraphic significance and petrology of phosphate nodules at base of Niobrara Formation, east flank of Black Hills, South Dakota
Author:
Tourtelot, Harry Allison, 1918-
Publication Information:
Washington : U.S. Govt. Print. Off., 1968.
Physical Description:
iii, 22 pages, 5 unnumbered pages : illustrations ; 29 cm.
Language:
English
Geographic Term:
Format :
Book