Technical Report Archive & Image Library (TRAIL) - 18 Matching Results
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- Mineral Resources of the Turtle Mountains Wilderness Study Area, San Bernardino County, California
- From abstract: At the request of the U.S. Bureau of Land Management, approximately 105,200 acres of the Turtle Mountains Wilderness Study Area (CDCA-307) were evaluated for mineral resources (known) and resource potential (undiscovered). In this report, the area studied is referred to as "the wilderness study area" or simply "the study area"; any reference to the Turtle Mountain Wilderness Study Area refers only to that part of the wilderness study area for which a mineral survey was requested by the U.S. Bureau of Land Management. The wilderness study area is in southeastern San Bernardino County, Calif. Gold, silver, copper, and lead have been mined within and adjacent to the study area.
- Mineral Resources of the Whipple Mountains and Whipple Mountains Addition Wilderness Study Areas, San Bernardino County, California
- From abstract: At the request of the U.S. Bureau of Land Management, approximately 85,100 acres of the Whipple Mountains Wilderness Study Area (CDCA-312) and 1,380 acres of the Whipple Mountains Addition Wilderness Study Area (AZ-050-010) were evaluated for identified mineral resources (known) and mineral resource potential (undiscovered). In this report, the Whipple Mountains and Whipple Mountains Addition Wilderness Study Areas are referred to as simply "the study area."
- Mineral Resources of the Fort Piute Wilderness Study Area, San Bernardino County, California
- From abstract: The Fort Piute Wilderness Study Area (CDCA-267) is in northeastern San Bernardino County, California, near the boundary between California and Nevada. Mineral surveys were requested for 31,371 acres of the Fort Piute Wilderness Study Area. In this report the area studied is referred to as "the study area". Examination of mines and prospects in the area was accomplished by the U.S. Bureau of Mines in 1981 and 1982. Field investigations of the area were carried out by the U.S. Geological Survey in 1983 and 1985. No mines or prospects, few mining claims, and no identified resources are located within the wilderness study area. Moderate and low potential for gold resources appears limited to outcrops of gneiss and granite exposed along the eastern side of the Piute Range. Available information indicates that there is no potential for energy resources, including oil and gas, uranium, or geothermal, in the study area.
- Ground Water in the Northeast Part of Twentynine Palms Marine Corps Base, Bagdad Area, California
- Purpose and scope: The U.S. Marine Corps conducts training maneuvers in the study area. Lack of a local source of water has severely limited the utilization of the area. In the past, limited quantities of water have been transported to the area by truck or helicopter. The purpose of this study was to determine the feasibility of obtaining a supply of ground water in the area for use when field maneuvers are being conducted. The major effort for this study was concentrated on the part within the Marine Corps base boundary. The study involved the assessment of ground-water quality, ground water in storage, and aquifer characteristics.
- Ground Water in the Twenty-Nine Palms Indian Reservation and Vicinity, San Bernardino County, California
- From purpose and scope: The purpose of this study, done in cooperation with the U.S. Bureau of Indian Affairs, was to provide hydrologic information necessary to aid in evaluating the feasibility of developing a water supply for the Twenty-Nine Palms Indian Reservation.
- Ground-Water Storage in the Johnson Valley Area, San Bernardino County, California
- Abstract: The Mojave Water Agency includes several desert basins where ground water in storage is many times as great as the average annual recharge. The Johnson Valley area was evaluated to find (1) the quantity of ground water in storage, (2) the chemical quality of the ground water, and (3) the potential for storage of recharge water in the unsaturated zone. Johnson Valley contains about 250,000 acre-feet of water in storage, of which about half can be considered recoverable. About 250,000 acre-feet of void space in the unsaturated alluvium is available for storage of imported water, but considerably less than this amount of recharged water could be recovered. The quality of the water in storage is satisfactory for public consumption, although water from some areas has high fluoride concentrations and should be mixed with water of low fluoride concentration.
- Preliminary Study of the Uranium Favorability of Mesozoic Intrusive and Tertiary Volcanic and Sedimentary Rocks of the Central Mojave Desert, Kern and San Bernardino Counties, California
- From purpose and scope: The purpose of this project was to determine the uranium favorability of Mesozoic intrusive rocks and Tertiary volcanic and sedimentary rocks in the central Mojave Desert. The project was conducted by Bendix Field Engineering Corporation (BFEC) under the auspices of the Grand Junction Office of the U.S. Energy Research and Development Administration (ERDA). The scope of the project included determination of the uranium content of different rock types, determination of the nature and extent of rock characteristics favorable for the formation of uranium deposits, and examination of known uranium deposits.
- Preliminary Study of the Uranium Favorability of Mesozoic Intrusive and Tertiary Volcanic and Sedimentary Rocks of the Central Mojave Desert, Kern and San Bernardino Counties, California, Plate 1
- Supplementary data containing a geologic map of the central Mojave Desert project, Kern and San Bernardino Counties, California.
- Distribution of Nitrate in Ground Water Redlands, California
- Report and geographical survey. This report examines the distribution of nitrates in the Redland area's ground water and concludes that this distribution depends primarily upon depth below the water table and areal location. Includes several maps and figures.
- Natural Gamma Aeroradioactivity of Parts of the Los Angeles Region, California
- Map with graded color shading to show levels of naturally-occurring gamma aeroradioactivity within the Los Angeles region in California. Details about the survey and map creation are printed at right. Scale 1:250,000.
- Aeroradioactivity Survey and Related Surface Geology of Parts of the Los Angeles Region, California (ARMS-I)
- Report regarding an airborne gamma-radioactivity survey that took place in the 2,800 square mile area around the Los Angeles region in California. Topics include the types of bedrock noted in the area as well as their levels of radioactivity.
- Airborne Radiometric Survey, Kern and San Bernardino Counties, California, and Nye County, Nevada
- Abstract: Approximately 10 square miles of mainly igneous rocks of the western Mojave Desert were covered by this airborne radiometric survey in 173 hours of flying time.
- An Investigation of Airborne Radioactivity Anomalies in the Rock Corral Area, San Bernardino County, California
- From abstract: The investigation in the Rock Corral area was undertaken to determine the relationship between 1) the anomalously high radioactivity recorded during an airborne survey and 2) the distribution and mineralogic mode of occurrence of radioactive material.
- An Investigation of Airborne Radioactivity Anomalies in the Rock Corral Area, San Bernardino County, California
- Report discussing the investigation of the Rock Corral area aimed at determining the connection between high radioactivity found during an airborne survey and the "distribution and mineralogic mode of occurrence" of this radioactivity.
- Thorium Resources of the Mountain Pass District, San Bernardino County, California
- Report discussing the thorium and rare-earth deposits that are found in a six-mile long belt of pre-Cambrian carbonate rocks associated with potash-rich igneous rocks of probable pre-Cambrian age in the Mountain Pass district of San Bernardino County, California.
- Thorium Resources of the Mountain Pass District, San Bernardino County, California
- A report regarding thorium resources located in the Mountain Pass District in San Bernadino County, California
- Airborne Radioactivity Surveys in the Mojave Desert Region, Kern, Riverside, and San Bernardino Counties, California
- From abstract: Airborne radioactivity surveys in the Mojave Desert region, Kern, Riverside, and San Bernardino counties were made in five areas recommended as favorable for the occurrence of radioactive raw materials: (1) Rock Corral area, San Bernardino County. (2) Searles Station area, Kern County. (3) Soledad area, Kern County, (4) White Tank area, Riverside and San Bernardino counties. (5) Harvard Hills area, San Bernardino County. Anomalous radiation was detected in all but the Harvard Hills area.
- Survey of Tin in California
- Report issued by the U.S. Bureau of Mines on a survey of tin deposits in California. A focus on tin deposits in Kern and San Bernardino Counties are presented. The report includes two maps.