The geologic map for the Hillsborough quadrangle has been created as a general-purpose map that is applicable to land-related investigations in the earth, environmental and biological sciences. Includes stereonets and rose diagrams, a QAP plot of normalized whole rock analyses, one cross section and rock unit descriptions. By Philip J. Bradley and Norman K. Gay. Scale - 1:24,000. Approximate size is 33"x42".
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