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Abstract
The bedrock exposed in the Van Buren North quadrangle, Missouri,
comprises Mesoproterozoic rhyolite and Late Cambrian and 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. A 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/.
Data Available in this Report
- Download compressed GIS
vector data: (GIS_data.zip, 6.9
MB)
- Metadata available in compressed .html files: (metadata.zip, 51
KB)
The offset-printed version of this map will be available for
purchase from USGS Information Services. See Ordering U.S. Geological Survey
Products, call toll-free (from the U.S.) 1-888-ASK-USGS,
or e-mail infoservices@usgs.gov.
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