Shorter contributions to the stratigraphy and geochronology of Upper Cretaceous rocks in the Western Interior of the United States /
Shorter contributions to the stratigraphy and geochronology of Upper Cretaceous rocks in the Western Interior of the United States /
U. S. Geological Survey.
- Washington: United States Government Printing Office, 1995.
- iii, A10, B16, C6 p. : ill., maps, tables ; 28 cm. +1 diagr.
- 2113 .
This volume is published as chapter A-C. These chapters are not available separately. Conduct diagr.: Measured sections of the upper cretaceous upper part of the frontier formation and lower part of the beaverhead group, Lima Peaks area, southwestern montana and southeastern Idaho.
Includes bibliographical references (p. C5-C6).
A. Conglomerate facies and contact relationships of the Upper Cretaceous upper part of the Frontier Formation and lower part of the Beaverhead Group, Lima Peaks area, southwestern Montana and southeastern Idaho / by T. S. Dyman, J. C. Haley, and W. J. Perry, Jr. -- B. U-Pb ages of volcanogenic zircon from porcellanite beds in the Vaughn member of the mid-Cretaceous Blackleaf Formation, southwestern Montana / by R. E. Zartman...[et al.]. -- C. Occurrences of the free-swimming Upper Cretaceous crinoids Uintacrinus and Marsupites in the western interior of the United States / by William A. Cobban.
Geology, Stratigraphic--Cretaceous
Geology--Montana
551.7709786
This volume is published as chapter A-C. These chapters are not available separately. Conduct diagr.: Measured sections of the upper cretaceous upper part of the frontier formation and lower part of the beaverhead group, Lima Peaks area, southwestern montana and southeastern Idaho.
Includes bibliographical references (p. C5-C6).
A. Conglomerate facies and contact relationships of the Upper Cretaceous upper part of the Frontier Formation and lower part of the Beaverhead Group, Lima Peaks area, southwestern Montana and southeastern Idaho / by T. S. Dyman, J. C. Haley, and W. J. Perry, Jr. -- B. U-Pb ages of volcanogenic zircon from porcellanite beds in the Vaughn member of the mid-Cretaceous Blackleaf Formation, southwestern Montana / by R. E. Zartman...[et al.]. -- C. Occurrences of the free-swimming Upper Cretaceous crinoids Uintacrinus and Marsupites in the western interior of the United States / by William A. Cobban.
Geology, Stratigraphic--Cretaceous
Geology--Montana
551.7709786