Stratigraphic framework of Lower and Upper Cretaceous rocks in central and eastern Montana
Data Series
57
By: Steven M. Condon
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Abstract
This study shows the lithology, thickness, distribution, and correlation of Lower and Upper Cretaceous rocks in central and eastern Montana. The described stratigraphic units range from the Aptian Kootenai Formation (oldest) to the Maastrichtian Hell Creek Formation (youngest). An included text report describes the units, and most formations or members are also represented by isopach maps. Structure contour maps of three horizons are also included. Correlations across the study area are shown on a series of cross sections. All text and illustrations are included as Adobe PDF files.
Suggested Citation
Condon, S.M., 2000, Stratigraphic framework of Lower and Upper Cretaceous rocks in central and eastern Montana (Version 1.0.): U.S. Geological Survey Data Series 57, 1 computer optical disc , https://doi.org/10.3133/ds57.
ISSN: 2327-638X (online)
Study Area
| Publication type | Report |
|---|---|
| Publication Subtype | USGS Numbered Series |
| Title | Stratigraphic framework of Lower and Upper Cretaceous rocks in central and eastern Montana |
| Series title | Data Series |
| Series number | 57 |
| ISBN | 0607940220 |
| DOI | 10.3133/ds57 |
| Edition | Version 1.0. |
| Year Published | 2000 |
| Language | English |
| Publisher | U.S. Geological Survey |
| Publisher location | Reston, VA |
| Description | 1 computer optical disc |
| Country | United States |
| State | Montana |
| Scale | 1 |