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[Chicago Quadrangle: Average Record Data Listings]

Average record data listings taken during aerial gamma-ray and magnetic surveys of the Chicago quadrangle in Indiana, Illinois, and Michigan.
Date: December 1980
Creator: EG & G GeoMetrics
System: The UNT Digital Library

[Chicago Quadrangle: Single Record Data Listings]

Single record data listings taken during aerial gamma-ray and magnetic surveys of the Chicago quadrangle in Indiana, Illinois, and Michigan.
Date: December 1980
Creator: EG & G GeoMetrics
System: The UNT Digital Library

[Danville Quadrangle: Average Record Data Listings]

Average record data listings taken during aerial gamma-ray and magnetic surveys of the Danville quadrangle in Indiana and Illinois.
Date: January 1981
Creator: EG & G GeoMetrics
System: The UNT Digital Library

[Danville Quadrangle: Single Record Data Listings]

Single record data listings taken during aerial gamma-ray and magnetic surveys of the Danville quadrangle in Indiana and Illinois.
Date: January 1981
Creator: EG & G GeoMetrics
System: The UNT Digital Library

[Davenport Quadrangle: Average Record Data Listings]

Average record data listings taken during aerial gamma-ray and magnetic surveys of the Davenport quadrangle in Iowa and Illinois.
Date: February 1981
Creator: EG & G GeoMetrics
System: The UNT Digital Library

[Davenport Quadrangle: Single Record Data Listings]

Single record data listings taken during aerial gamma-ray and magnetic surveys of the Davenport quadrangle in Iowa and Illinois.
Date: February 1981
Creator: EG & G GeoMetrics
System: The UNT Digital Library

[Dubuque Quadrangle: Average Record Data Listings]

Average record data listings taken during aerial gamma-ray and magnetic surveys of the Dubuque quadrangle in Iowa, Illinois, and Wisconsin.
Date: February 1981
Creator: EG & G GeoMetrics
System: The UNT Digital Library

[Dubuque Quadrangle: Single Record Data Listings]

Single record data listings taken during aerial gamma-ray and magnetic surveys of the Dubuque quadrangle in Iowa, Illinois, and Wisconsin.
Date: February 1981
Creator: EG & G GeoMetrics
System: The UNT Digital Library

[Indianapolis Quadrangle: Average Record Data Listings]

Average record data listings taken during aerial gamma-ray and magnetic surveys of the Indianapolis quadrangle in Indiana and Illinois.
Date: March 1981
Creator: EG & G GeoMetrics
System: The UNT Digital Library

[Indianapolis Quadrangle: Single Record Data Listings]

Single record data listings taken during aerial gamma-ray and magnetic surveys of the Indianapolis quadrangle in Indiana and Illinois.
Date: March 1981
Creator: EG & G GeoMetrics
System: The UNT Digital Library

[Racine and Grand Rapids Quadrangles: Average Record Data Listings]

Average record data listings taken during aerial gamma-ray and magnetic surveys of the Racine and Grand Rapids quadrangles in Wisconsin, Illinois, and Michigan.
Date: July 1981
Creator: EG & G GeoMetrics
System: The UNT Digital Library

[Racine and Grand Rapids Quadrangles: Single Record Data Listings]

Single record data listings taken during aerial gamma-ray and magnetic surveys of the Racine and Grand Rapids quadrangle in Wisconsin, Illinois, and Michigan.
Date: July 1981
Creator: EG & G GeoMetrics
System: The UNT Digital Library

[Vincennes Quadrangle: Average Record Data Listings]

Average record data listings taken during aerial gamma-ray and magnetic surveys of the Vincennes quadrangle in Indiana, Illinois, and Kentucky.
Date: unknown
Creator: EG & G GeoMetrics
System: The UNT Digital Library

[Vincennes Quadrangle: Single Record Data Listings]

Single record data listings taken during aerial gamma-ray and magnetic surveys of the Vincennes quadrangle in Indiana, Illinois, and Kentucky.
Date: unknown
Creator: EG & G GeoMetrics
System: The UNT Digital Library

[Aurora Quadrangle: Average Record Data Listings]

Average record data listings taken during aerial gamma-ray and magnetic surveys of the Aurora quadrangle in Illinois.
Date: unknown
Creator: High Life Helicopters Inc.
System: The UNT Digital Library

[Aurora Quadrangle: Single Record Data Listings]

Single record data listings taken during aerial gamma-ray and magnetic surveys of the Aurora quadrangle in Illinois.
Date: unknown
Creator: High Life Helicopters Inc.
System: The UNT Digital Library

[Rockford Quadrangle: Average Record Data Listings]

Average record data listings taken during aerial gamma-ray and magnetic surveys of the Rockford quadrangle in Illinois.
Date: unknown
Creator: High Life Helicopters Inc.
System: The UNT Digital Library

[Rockford Quadrangle: Single Record Data Listings]

Single record data listings taken during aerial gamma-ray and magnetic surveys of the Rockford quadrangle in Illinois.
Date: unknown
Creator: High Life Helicopters Inc.
System: The UNT Digital Library

[Belleville Quadrangle: Average Record Data Listings]

Average record data listings taken during aerial gamma-ray and magnetic surveys of the Belleville quadrangle in Illinois.
Date: 1981
Creator: High Life Helicopters, Inc.
System: The UNT Digital Library

[Belleville Quadrangle: Single Record Data Listings]

Single record data listings taken during aerial gamma-ray and magnetic surveys of the Belleville quadrangle in Illinois.
Date: 1981
Creator: High Life Helicopters, Inc.
System: The UNT Digital Library

[Decater Quadrangle: Average Record Data Listings]

Average record data listings taken during aerial gamma-ray and magnetic surveys of the Decater quadrangle in Illinois.
Date: 1981
Creator: High Life Helicopters, Inc.
System: The UNT Digital Library

[Decater Quadrangle: Single Record Data Listings]

Single record data listings taken during aerial gamma-ray and magnetic surveys of the Decater quadrangle in Illinois.
Date: 1981
Creator: High Life Helicopters, Inc.
System: The UNT Digital Library

[Peoria Quadrangle: Average Record Data Listings]

Average record data listings taken during aerial gamma-ray and magnetic surveys of the Peoria quadrangle in Illinois.
Date: 1981
Creator: High Life Helicopters, Inc.
System: The UNT Digital Library

[Peoria Quadrangle: Single Record Data Listings]

Single record data listings taken during aerial gamma-ray and magnetic surveys of the Peoria quadrangle in Illinois.
Date: 1981
Creator: High Life Helicopters, Inc.
System: The UNT Digital Library