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12. Isopleth maps of titanium, aluminum, and associated elements in stream sediments of West Virginia
13. Isopleth maps of uranium, thorium, cerium, lanthanum, and related elements in stream sediments of West Virginia
14. Geologic map of the Palo Alto and part of the Redwood Point 7-1/2ʹ quadrangles, San Mateo and Santa Clara counties, California
15. Geologic map of upper Eocene to Holocene volcanic and related rocks in the Cascade Range, Washington
16. Geologic maps of upper Cenozoic deposits in central California
17. Quaternary geologic map of the Ottawa 4° x 6° quadrangle, United States and Canada
18. Bedrock geologic map of the Gloucester and Rockport quadrangles, Essex County, Massachusetts
19. Quaternary geologic map of the Hudson River 4° x 6° quadrangle, United States and Canada
20. Precambrian basement map of the Trans-Hudson orogen and adjacent terranes, northern Great Plains, U.S.A
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