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R.G. Petersen

Publications and source records attributed to R.G. Petersen.

8 recordsLinked to original sources
USGS1962

Records and logs of selected wells and test holes, chemical analyses of water, and water levels in observation wells in southeastern New Hampshire

The area covered by this report (fig. 1) includes about 390 square miles of southeastern New Hampshire adjacent to the Atlantic Ocean. It lies between Massachusetts on the south and Maine on the north and east, and it is bounded on the east by the Atlantic Ocean and on the west by a line drawn approximately northward from Atkinson at the Massachusetts border to Farmington near the Maine border. The area includes parts of Rockingham and Strafford Counties. The report presents basic data collected as part of an investigation of the geology and ground-water resources of southeastern New Hampshire by the U. S. Geological Survey in cooperation with the New Hampshire Water Resources Board. These data have been prepared for release in order to make available to the public basic ground-water data that will be useful in the planning of water-resources development. Most of the data contained in this report were collected by Edward Bradley during the period September 1953 to January 1958.

New Hampshire↗
USGS1960

Detrital-appearing uraninite grains in the shinarump member of the chinle formation in northern Arizona

A sample of uranium-bearing conglomerate from the Shinarump member of the Chinle formation in northern Arizona was disaggregated in an ultrasonic separator. The sample, weighing 187 grams, contained about 60 grains of uraninite (from 0.1 to 1 mm diameter) which have the sphericity and polish suggestive of detrital grains . The detrital-appearing grains are associated with abundant interstitial uraninite , sphalerite, and pyrite, which presents conflicting evidence as to the origin of the uranium deposit. No definite conclusions are presented for the occurrence of these grains . However, the evidence strongly suggests that they are probably not detrital in origin, but are uraninite replacements of detrital grains ; the original mineral may have been quartz.

Arizona↗