Abstract: Experiments using highly turbid water from playa lakes for injection into the Ogallala Formation have resulted in greatly decreased yield of the recharge wells. Recharge of ground or surface water of good quality has indicated, however, that injection through wells in an effective method of recharging the aquifer. Water that is slightly turbid can be successfully injected for a period of time, but generally results in constantly declining yields and capacity for recharge. Redevelopment through pumping and surging significantly prolongs the life of recharge wells under some conditions. Surface spreading is little practiced on the High Plains, but locally may be a feasible means of artificial recharge.

Abstract: Ground water continues to discharge into the Navidad and Lavaca Rivers by seepage out-flow even though large amounts of ground water are pumped for irrigation. Although a reduction in streamflow probably has occurred, a complete loss of the low flow of the streams by infiltration to a lowered water table seems remote. The large ground-water withdrawals will continue to cause land-surface subsidence, which will range from 0.012 foot to more than 0.026 foot per year. A minimum of about 0.013 to 0.015 foot of annual subsidence at the upper ends of the proposed reservoir and a maximum of about 0.019 foot near the dam site can be expected. Structural failures of manmade features have not occurred from the subsidence, but regional changes in the land slope have occurred and will continue . Numerous fault traces have been mapped in the area, but most of the faults are inactive. If movement along the fault planes should occur, the vertical displacement probably will not exceed the total subsidence.

This report summarizes results on surveys taken by the U.S. Geological Survey made to determine the seismic velocity, electrical resistivity, and preliminary geology of rock in the U12n.03 tunnel, Nevada Test Site.

Introduction: The chemical character of ground water depends to a large degree upon the character of the rock formations through which the water moves. The composition of the water is the result of several solutional and decompositional processes.

This is a photo-geologic map of the Skull Mountain Quadrangle at the Nevada Test Site.

Geologic map of the Topopah Spring Southwest quadrangle, Nevada with notations for specific topographic features and profile views. Scale 1:24,000.

From introduction: This report details the results of a 256-pound high explosive cratering experiment at the Chariot test site 110 miles north of the Arctic Circle.

The Topopah Spring and Timber Mountain 15-minute quadrangles comprising about 500 square miles in southern Nye County, Nev., are bounded by longitudes 116°15' W. and 116°30' W. and by latitudes 36°45' N. and 37°15' N. (fig. 1) The quadrangles are mostly within the Nevada Test Site and are approximately 90 miles northwest of Las Vegas (fig. 1). Lathrop Wells, the nearest town, is about 10 miles south of the southern boundary of the Topopah Spring quadrangle.

From introduction: This report summarizes the location, gross geologic features, and natural resources of the major sedimentary basins in the United States, excluding Alaska and Hawaii.

Report discussing the coarsely crystalline autunite in granitic rock near Mt. Spokane, Washington. "This report is an abstract of a paper with the same title that is planned for publication in the American Mineralogist."

Preliminary geologic map of the Elk Ridge 3 NE quadrangle, San Juan County, Utah

The following report describes studies of thermodynamic equilibria of vanadium in aqueous systems as applied to the interpretation of the Colorado Plateau ore deposits.

The following report covers investigations on sedimentary rocks of Middle Pennsylvanian age in northeastern Oklahoma, southeastern Kansas, and western Missouri. Distribution of uranium and other trace elements in these rocks was studied during 1955 and 1956.

A report about the U. S. Geological Survey's program about uranium investigations and geologic mapping in the Monument Valley area, Arizona. A resource appraisal of the area was an inherent part of the program, and is detailed in this report.

The following report describes a method of obtaining precise unit-cell data from oriented electron diffraction powder patterns.

The following report is a summary of rock salt deposits in the United States, and discusses them as possible disposal sites for radioactive waste.

The following report covers studies and investigations of uranium deposits in the Black Hills of South Dakota and Wyoming. The ore minerals include carnotite, tyuyamunite, metatyuyamunite, corvusite, rauvite, uraninite, and coffinite, as well as minor amounts of other uranium and vanadium minerals.

The following report covers geological studies on the USGS and Rainier tunnel areas in the Nevada Test Site.

The following report covers analytical work on sedimentary phosphate rock deposits discovered on the Arctic Slope of Alaska during the geological investigation of Naval Petroleum Reserve No. 4 between 1944 and 1953.

The following report presents a preliminary discussion of the stratigraphy of the Park City and Phosphoria formations with special emphasis on the phosphatic parts, and to discuss the distribution of phosphate in Utah.

"The Purpose of this paper is to present a preliminary discussion of the stratigraphy of the park city and phosphoric formations with special emphasis on the phosphatic parts and to discuss the distribution of phosphate in Utah. The Mississippian deposits are discussed only briefly because of the lack of new data concerning them"

From abstract: Approximately fifty radioactive deposits and nearly fifty properties not abnormally radioactive were examined during a geologic reconnaissance for radioactive minerals in Idaho, Washington, and western Montana during the period July 1952 -- June 1955. The most important uranium deposits are in or near granitic to quartz monzonitic intrusions of probable Cretaceous age in central and northern Idaho, westernmost Montana, and northeastern Washington.

From introduction: This report summarizes some of the results of U. S. Geological Survey investigations in the Club Mesa area and presents a compilation of available geologic data that would be helpful in future exploration. Detailed geologic logs of U. S. Geological Survey holes drilled in the Club Mesa area on public land that is no longer withdrawn from mineral entry are on open file for public inspection in the U. S. Geological Survey office, Grand Junction, Colorado.

A report about the amount of lead retained in the ash of lead-bearing carbonaceous material which is essentially independent of the method of ashing.