Stratigraphy of the Niobrara formation at Pueblo, Colorado /
| Main Authors: | , |
|---|---|
| Format: | Government Document Book |
| Language: | English |
| Published: |
Washington :
U.S. Govt. Print. Off,
1964.
|
| Series: | Professional paper (Geological Survey (U.S.)) ;
454-L. Shorter contributions to general geology. |
| Subjects: |
Table of Contents:
- Abstract
- Introduction
- Previous work
- Stratigraphy
- Fort Hays Limestone Member
- Fossils and age
- Disconformity at the base of the Fort Hays Limestone Member
- Smoky Hill Shale Member
- Shale and limestone unit
- Lower shale unit
- Lower limestone unit
- Middle shale unit
- Middle chalk unit
- Upper chalky shale unit
- Upper chalk unit
- Calcareous beds at base of Pierre Shale
- Incorrect usage of the names Timpas Limestone and Apishapa Shale
- Correlation
- Boulder area, Colorado
- East-central Utah
- Wind River basin, Wyo.
- Sweetgrass arch, Montana
- References cited
- Index.