Abstract: "Recent request for new sites has prompted an overall review of the Pahute Mesa area. The criteria used in this review are that the geology must be favorable and that horizontal spacing of emplacement holes being developed should be 2.5 to 3 times hole depth. The review shows that current emplacement requirements have exhausted available explored sites and have effectively eliminated 90 percent of the blocks of ground geologically favorable for chambered sites."

This report summarizes the gravity data of the Area 12, Nevada Test Site.

This is a report on the stratigraphy of the Star Peak Group an overlying lower Mesozoic rocks Humboldt Range in Nevada.

This report summarizes the stratigraphy, lithology, and physical properties studied in the UE12p#1 exploratory diamond drill hole at the Nevada Test Site.

Abstract: "Geodimeter surveys were made on four traverses near the east scarp of Rainier Mesa between October 27, 1967 and April 26, 1968. These measurements were made in order to determine if an changes in distance between survey stations had resulted from downslope creep of the rocks behind the scarp, or if any displacements had resulted from nuclear explosions beneath the mesa and in adjacent areas. A persistent small but possibly significant, slopeward displacement was measured along one traverse and may represent detachment of a large block; monitoring for an additional period of time is recommended."

The following report describes the computer technique for tracing seismic rays in two-dimensional geological models in the state during the time this report was written, and presents some preliminary results.

The following report explains the seismic ray models presented in this report.

This report documents the use of the dislocation theory to analyze measured vertical displacements across a fault near the Duryea underground nuclear explosion.

This report summarizes the results of the U.S. Geological Survey geophysical and geological studies of the rock in the U16a.04 tunnel in the Nevada Test Site.

The following report summarizes the geophysical studies of the rocks made in the U12e.10 tunnel of the Nevada Test Site.

Abstract: "Fifteen in situ interval densities were calculated from the borehole gravity meter observations made in Test Well-B. The weighted average density for all the rocks sampled by the gravity meter is 1.83 gm/cc. The alluvium density ranges from 1.71 to 1.82 gm/cc and averages 1.76 gm/cc. The lake beds range from 1.91 to 1.93 gm/cc and average 1.92 gm/cc. The Rainier Mesa Member averages 1.83 gm/cc. The Tiva Canyon Member averages 1.74 gm/cc and the upper 110 feet of Topopah Spring Member has a density of 2.30 gm/cc."

Abstract: "Drill hole UCe-18 was successfully logged with the U.S. Geological Survey-La Coste Romberg borehole gravity meter to a depth of 6,488 feet. That density increases with depth is apparent in both the alluvium and volcanic rock. The in situ density of the alluvium measured by the gravity meter ranges from 1.77 to 2.34 gm/cc; the lake beds beneath the alluvium have a density of 2.22 gm/cc; and the rhyolitic rocks range in density from 2.26 to 2.47 gm/cc. The average density determined from the borehole gravity meter data for the alluvium plus the lake beds is 2.22 gm/cc and for the volcanic rocks is 2.35 gm/cc."

This report presents the gravity data of drill hole Ue19n at the Nevada Test Site.

"The surficial deposits of Yucca Flat, divided into eleven units, are shown at a scale of 1:48,000 (fig. 1A). Major rock types of the bordering bedrock areas are indicated, as are the lithologies of portions of the surficial units. The map explanation (fig. 1B) includes a description of the surficial units." (page 2)

The following report summarizes the hydrologic data collected during the nuclear detonation, the Bilby event, that took place in the U3cn emplacement hole.

This report summarizes the geological analyses of one of the preliminary cross sections from the Pahute Mesa in the Nevada Test Site, particularly the uppermost Precambrian-Paleozoic strata.

This report summarizes the geological features of the Pahute Mesa map in the Nevada Test Site.

This report describes the simplified methods used to obtain the magnetic property data required to interpret an aeromagnetic survey of 5,000 square miles in the general area of the Nevada Test Site.

The following report presents data from the exploration progress of central Nevada.

Abstract: "The Midi Mist (U12n.02) event produced rock spalling along bedding, joint, and fault planes in the U12n.02 and U12n.03 drifts. The spalling in the U12n.02 drift started at about construction station 12 + 75 and was continuous toward the W.P. Most of the spalling in the U12n.03 drift occurred between C.S. 0 + 00 and 7 + 00."

The following report provides a geological map of the Deadhorse Flat quadrangle, Nye County, Nevada.

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.

The following report summarizes the geological and geophysical studies made on the rocks of the Midi Mist site in the Area-12 tunnel complex of the Nevada Test Site. The data was needed to determine whether the rock met the technical criteria of the nuclear experiment.

From summary: Site investigations were conducted at two locations, the sites of the DUGOUT and CHARLIE events, at the Nevada Test Site for the purpose of evaluating the dynamic in situ technique as a means of determining the boundaries of craters produced by explosive detonations.