Aeromagnetic map showing total intensity 1000 feet above the surface of part of the Oswegatchie quadrangle, St. Lawrence County, New York
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Geophysical Investigations Map↗
Geology topics
H.E. Hawkes
Publications and source records attributed to H.E. Hawkes.
Magnetic anomaly near Bechtelsville, Pennsylvania
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Open-File Report↗
Chromite and quicksilver deposits of the Del Puerto area, Stanislaus County, California
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Bulletin↗