The following report is the first volume discussing airborne radiometric and magnetic data from New Mexico within the Raton and Santa Fe quadrangles.

This report discusses aeromagnetic data that was obtained from uranium anomalies discovered in the Milbank quadrangle of South Dakota, North Dakota, and Minnesota.

This report discusses aeromagnetic data that was obtained from uranium anomalies discovered in the New Ulm quadrangle of Minnesota.

The following report is the second volume discussing airborne radiometric and magnetic data from New Mexico within the Raton quadrangle. This report provides detailed data descriptions from the study.

This report discusses aeromagnetic data that was obtained from uranium anomalies discovered in the River Falls quadrangle of Minnesota and North Dakota.

Second volume of a report documenting a high-sensitivity airborne radiometric and magnetic survey of the Ajo and Lukeville quadrangle including maps documenting geophysical and geochemical data, as well as magnetic, ancillary and radiometric data.

Second volume of a report documenting a high-sensitivity airborne radiometric and magnetic survey of the Salton Sea and El Centro quadrangles including maps documenting geophysical and geochemical data, as well as magnetic, ancillary and radiometric data.

From Introduction: "Uranium has been discovered in fluvial quartz-pebble conglomerates in most of the Precambrian shield areas of the world, including the Canadian, African, South America, Indian, Baltic, and Australian shields. Occurrences in these and other areas are shown in Figure 1.1. Two of these occurrences, the Huronian supergroup of Canada and the Witwatersrand deposit of South Africa contain 20-30 percent of the planet's known uranium reserves (Nininger, 1974). Thus it is critical that we understand the origin of these deposits and develop exploration models that can aid in finding new deposits."

The following report provides results from a geochemical survey for Trans-Pecos, Texas. Field and laboratory data are presented for 29 groundwater and 240 stream sediment samples.

The following report presents results of the Tascotal detailed geochemical survey for Trans-Pecos, Texas. Field and laboratory data are presented for 337 groundwater and 611 stream sediment samples.

Documentation outlining characteristics of field data samples taken in the Sierra Vieja detail area.

Data gathered at stream sediment sites in the Sierra Vieja detail area, including applicable water chemistry measurements (e.g., pH, conductivity, alkalinity) and elemental analyses.

Data gathered at well water sites in the Sierra Vieja detail area, including applicable water chemistry measurements (e.g., pH, conductivity, alkalinity), physical measurements (e.g., temperature, well description, scintillometer readings), and elemental analyses.