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Updated aeromagnetic compilation over Lake Superior

Metadata Updated: July 6, 2024

New aeromagnetic compilations have been produced for the Lake Superior region. The compilations combine previously published aeromagnetic survey data and compilations available from the Minnesota Geological Survey, Wisconsin Geological and Natural History Survey, Ontario Ministry of Energy, Northern Development and Mines, Natural Resources Canada, and U.S. Geological Survey (see MagneticSurveys.pdf). Two compilations were produced which differ in their theoretical observation height. The compilation at 150 m height maintains anomaly shape over geologic features on land; whereas the compilation at 300 m height better maintains anomaly shape for sources observed over Lake Superior and would be preferred for modeling anomaly sources beneath the lake. The compilations were produced using industry standard techniques. The final compilations were analytically continued to a surface drape of 150 m and 300 m above ground and gridded to 250-m and 500-m cell size, respectively. The compilations provide consistent datasets appropriate for mapping onshore geology and magnetic modeling that extends across the lake shore.

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.

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Dates

Metadata Created Date May 31, 2023
Metadata Updated Date July 6, 2024

Metadata Source

Harvested from DOI EDI

Additional Metadata

Resource Type Dataset
Metadata Created Date May 31, 2023
Metadata Updated Date July 6, 2024
Publisher U.S. Geological Survey
Maintainer
@Id http://datainventory.doi.gov/id/dataset/b891057d9e44c06a454e0a35ba6f7e5c
Identifier USGS:594993a8e4b062508e359ba7
Data Last Modified 20200929
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://datainventory.doi.gov/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 c1e087cb-941d-4510-b2e4-251ea1efd0cc
Harvest Source Id 52bfcc16-6e15-478f-809a-b1bc76f1aeda
Harvest Source Title DOI EDI
Metadata Type geospatial
Old Spatial -93.591453,44.339045,-83.420693,49.649964
Publisher Hierarchy White House > U.S. Department of the Interior > U.S. Geological Survey
Source Datajson Identifier True
Source Hash 9625eca15b5507237e210c6215b526b72f7f84d6b22ace076f3bc08219da398d
Source Schema Version 1.1
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