Catalogue of lithologic and stratigraphic information from drill holes on the Nevada Test Site and environs
Harry R. Covington, Melvin Berger, Evan Cramer Jenkins · Antarctica A Keystone in a Changing World · 1997
U3ev-7 (underground, Area 3, Yucca Flat, hole drilled in 1972 to ventilate the U3ev mining complex).U3ev-9 (underground, Area 3, Yucca Flat, hole drilled in 1969 to test equipment designed to withdraw stemming aggregate from drill holes during destemming operations -sited in the general area of, but not related to, the test in U3ev-2S).U19aS PS-ID (underground, Area 19, Pahute Mesa, hole drilled post test in 1967 to access the explosion cavity for measurements and samples).USGS Water Well A (a hydro-logic test well, Area 3, Yucca Flat, drilled in 1960, used as a public supply water well).. U3cn-5 (underground, Area 3, Yucca Flat, hydrologic test hole drilled in 1965 to monitor effects on subsurface water from the BILBY test).Water Well 5B (water supply well, Area 5, Frenchman Flat, drilled in 1964).HTH-E (hydrologic test exploratory hole, Area 3, drilled in 1962 to investigate the hydrologic potential of east Yucca Flat).HOLE NAME: Hole name where appropriate.Early drill holes on the NTS and environs were commonly named.Even where numbered or officially designated otherwise, many drill holes retain a name more likely to be used for identification than the numbered designation.Exploratory Drill Holes: LASL 1-9 (Test Holes 1-9).Jangle Test Hole 2 (Jangle Test Hole A2, Area 2, Yucca Flat, named for Operation Jangle, two tests in November 1951).Ferns Wheel A.3 GZ Site (Flat Top I, the site for the proposed Ferris Wheel experiment).Other Ancillary Drill Holes: Ground Water Test Well E (HTH-E).Aurora Well (USGS HTH-10, water well, off site, Cactus Springs, 11 miles west of Indian Springs, north of highway 92).LOCATION: For drill holes on the NTS, a geographic NTS Area number is shown.Off site drill holes are located by a brief, generalized, geographic description.NNEV: The northing coordinate of a location.Coordinates are measured in feet from the Central Nevada State Coordinate System.ENEV: The easting coordinate of a location, Central Nevada Coordinate System.ELEV: The elevation of a location.The elevation, measured in feet above mean sea level, generally refers to the ground level of the prepared surface around a drill-hole location.An entry of 0 elevation denotes no data are available.TD: The total depth of the drill hole.The total depth, measured in feet, is the drilled depth as measured by drill pipe lengths.LOG TYPE: The level of detail available in the listed logs: D: Detailed ~ The log contains an extensive description of each stratigraphic unit or a description of each lithologic interval (Table 1).G: Generalized -The log contains a description of each stratigraphic unit or a short description of each lithologic interval (Table 2).S: Stratigraphic --The log contains a short description of each stratigraphic unit or only stratigraphic names (Table 3).