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High-Resolution Aeromagnetic Survey Over the New Madrid Seismic Zone, Missouri, Arkansas, and Tennessee

Metadata Updated: October 29, 2025

This data release provides access to a low-altitude, aeromagnetic survey over parts of Missouri, Arkansas, and Tennessee, an area centered about 100 km north of Memphis, Tennessee. The survey covers parts of the southern arm of the New Madrid seismic zone, the northwestern margin of the Reelfoot rift, the Blytheville arch, and the Commerce geophysical lineament (reference: Langenheim, V.E., and Hildenbrand, T.G., 1997, Geological Society of America Bulletin, v. 109, p. 580). The survey is underlain by Paleocene and younger sediments, consisting of silt, clay, sand, and gravel. Plutons and other intrusive rocks lie at depth. These data were acquired between July 12 and July 28, 2013, by EDCON-PRJ, Inc., working under contract to the U.S. Geological Survey. The nominal flying height was based on a best fit, pre-planned, three-dimensional draped surface targeted at 200 m above terrain, subject to aircraft climb and descent limitations. The average terrain clearance was 203 m. Variable terrain clearance should be considered when modeling and interpreting these data. Flight lines were spaced 400 m apart and directed with a heading of 148 degrees east of north; tie lines were spaced 4000 m apart and directed 58 degrees east of north. A total of 12,868 line-kilometers were acquired over an area of approximately 4,646 square kilometers. The details of the New Madrid aeromagnetic survey are described in the document NewMadrid_Tech_Report.pdf available for download in this data release.

Access & Use Information

Public: This dataset is intended for public access and use. License: No license information was provided. If this work was prepared by an officer or employee of the United States government as part of that person's official duties it is considered a U.S. Government Work.

Downloads & Resources

Dates

Metadata Created Date September 12, 2025
Metadata Updated Date October 29, 2025

Metadata Source

Harvested from DOI USGS DCAT-US

Additional Metadata

Resource Type Dataset
Metadata Created Date September 12, 2025
Metadata Updated Date October 29, 2025
Publisher U.S. Geological Survey
Maintainer
Identifier http://datainventory.doi.gov/id/dataset/usgs-5e98bc0d82ce172707f6f8cc
Data Last Modified 2020-08-20T00:00:00Z
Category geospatial
Public Access Level public
Bureau Code 010:12
Metadata Context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
Metadata Catalog ID https://ddi.doi.gov/usgs-data.json
Schema Version https://project-open-data.cio.gov/v1.1/schema
Catalog Describedby https://project-open-data.cio.gov/v1.1/schema/catalog.json
Harvest Object Id cba15635-6771-4e71-9a64-e4677848bac0
Harvest Source Id 2b80d118-ab3a-48ba-bd93-996bbacefac2
Harvest Source Title DOI USGS DCAT-US
Metadata Type geospatial
Old Spatial -90.6388, 35.7635, -89.5993, 36.7656
Source Datajson Identifier True
Source Hash 10c5e6e20c5f381f92c5f3593037b5657ed9cb5a624dd8f75f35c41ff0930ee3
Source Schema Version 1.1
Spatial {"type": "Polygon", "coordinates": -90.6388, 35.7635, -90.6388, 36.7656, -89.5993, 36.7656, -89.5993, 35.7635, -90.6388, 35.7635}

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