Statistical data are presented from a regional geochemical study of the Ajo 1? X 2? quadrangle exclusive of the Papago Indian Reservation, but including the extension of Organ Pipe Cactus National Monument into the Lukeville 1? X 2? quadrangle. Frequency distribution data from the analysis of stream-sediment and heavy-mineral-concentrate samples for 31 elements have broad ranges and for most elements have maxima well above normal. Elemental associations derived from correlation and R-mode factor analysis related to regional lithologic variation and for some associations suggest mineral-resource potential.
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USGS Numbered Series
Statistical parameters for resource evaluation of geochemical data from the Ajo 1 degree x 2 degrees Quadrangle, Arizona