Geologic map of the Fremont quadrangle, Shannon, Carter, and Oregon Counties, Missouri
IMAP
2775
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Abstract
The bedrock exposed in the Fremont Quadrangle, Missouri, comprises Early Ordovician aged dolomite, sandstone, and chert. The sedimentary rocks are nearly flat-lying except where they are adjacent to faults. The carbonate rocks are karstified and the area contains numerous sinkholes, springs, caves, and losing-streams.
This map is one of several being produced under the U.S. Geological Survey National Cooperative Geologic Mapping Program to provide geologic data applicable to land-use problems in the Ozarks of south-central Missouri. Ongoing and potential industrial and agricultural development in the Ozarks region has presented issues of ground-water quality in karst areas. National Park in this region (Ozark National Scenic Riverways, Missouri) is concerned about the effects of activities in areas outside of their stewardship on the water resources that define the heart of this Park. This task applies geologic mapping and karst investigations to address issues surrounding competing land use in south-central Missouri. This task keeps geologists from the USGS associated with the park and allows the Parks to utilize USGS expertise and aid the NPS on how to effectively use geologic maps for Park management. For more information see: http://geology.er.usgs.gov/eespteam/Karst/index.html
Suggested Citation
Orndorff, R.C., 2003, Geologic map of the Fremont quadrangle, Shannon, Carter, and Oregon Counties, Missouri (Online version 1.0): U.S. Geological Survey IMAP 2775, 1 map : col. ; 58 x 47 cm., on sheet 84 x 114 cm., folded into 21 x 23 cm., https://doi.org/10.3133/i2775.
Study Area
| Publication type | Report |
|---|---|
| Publication Subtype | USGS Numbered Series |
| Title | Geologic map of the Fremont quadrangle, Shannon, Carter, and Oregon Counties, Missouri |
| Series title | IMAP |
| Series number | 2775 |
| DOI | 10.3133/i2775 |
| Edition | Online version 1.0 |
| Year Published | 2003 |
| Language | ENGLISH |
| Description | 1 map : col. ; 58 x 47 cm., on sheet 84 x 114 cm., folded into 21 x 23 cm. |
| Scale | 24000 |