Relevant bibliographies by topics / California. Division of Mines and Geology

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Academic literature on the topic 'California. Division of Mines and Geology'

Author: Grafiati
Published: 4 June 2021
Last updated: 3 February 2022

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Journal articles on the topic "California. Division of Mines and Geology"

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Reitherman, Robert. "The Effectiveness of Fault Zone Regulations in California." Earthquake Spectra 8, no. 1 (February 1992): 57–77. http://dx.doi.org/10.1193/1.1585670.

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In 1990 a study was completed for the California Division of Mines and Geology on the effectiveness of California's fault zone regulations (the Alquist-Priolo Special Studies Zones Act and associated policies and activities). The Act, passed in 1972, instituted the following elements of a statewide mandatory approach to dealing with the hazard of surface fault rupture: state mapping of fault zones (Special Study Zones) where active faults are suspected; local government imposition of the requirement of a geologic study on new building projects within these Zones (with some single family dwellings and low-occupancy structures exempt); review procedures for the studies submitted by an applicant's geologist; prohibition of the siting of projects on active faults; notification of real estate purchasers that a property is located within a Zone. This paper presents the results of that evaluation and comments more broadly on applying the Alquist-Priolo model to other regions and to other geologic hazards.
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Brady, A. Gerald, and Anthony F. Shakal. "The Morgan Hill Earthquake of April 24, 1984—Strong-Motion Records." Earthquake Spectra 1, no. 3 (May 1985): 419–43. http://dx.doi.org/10.1193/1.1585274.

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Seventy-two strong-motion accelerograph stations, mostly from within the permanent networks of the U. S. Geological Survey and the California Division of Mines and Geology, were triggered during the Morgan Hill earthquake, April 24, 1984. Among the more interesting of the records are the large acceleration (1.29g) at Coyote Lake dam, the Gilroy array spanning the region between the San Andreas and Calaveras faults, the record from Hall's Valley (epicentral distance 4 km), and records from buildings, a bridge, and a dam within 20 km of the epicenter. Digitized data from 16 stations are available on tape.
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Brady, A. G., E. C. Etheredge, and R. L. Porcella. "The Whittier Narrows, California Earthquake of October 1, 1987—Preliminary Assessment of Strong Ground Motion Records." Earthquake Spectra 4, no. 1 (February 1988): 55–74. http://dx.doi.org/10.1193/1.1585465.

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More than 250 strong-motion accelerograph stations were triggered by the Whittier Narrows, California, earthquake of 1 October 1987. Considering the number of multichannel structural stations in the area of strong shaking, this set of records is one of the more significant in history. Three networks, operated by the U.S. Geological Survey, the California Division of Mines and Geology, and the University of Southern California produced the majority of the records. The excellent performance of the instruments in these and the smaller arrays is attributable to the quality of the maintenance programs and their funding and personnel requirements. Readiness for a magnitude 8 event is directly related to these maintenance programs. Prior to computer analysis of the analog film records, a number of important structural resonant modes can be identified, and frequencies and simple mode shapes have been scaled. The structural records form a basic performance measurement for comparison with larger earthquake response in the future.
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Stirling, Mark W., and Steven G. Wesnousky. "Comparison of recent probabilistic seismic hazard maps for southern California." Bulletin of the Seismological Society of America 88, no. 3 (June 1, 1998): 855–61. http://dx.doi.org/10.1785/bssa0880030855.

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Abstract Probabilistic seismic hazard (PSH) maps for southern California produced from the models of Ward (1994), the Working Group on California Earthquake Probabilities (1995), and the U.S. Geological Survey and California Division of Mines and Geology (Frankel et al., 1996; Petersen et al., 1996) show the peak ground accelerations predicted with each model to occur at 10% probability in 50 years, and the probability that 0.2 g will occur in 30 years, for “rock” site conditions. Differences among the maps range up to 0.4 g and 50%, respectively. We examine the locations and magnitudes of the differences as a basis to define the issues and avenues of research that may lead to more confident estimates of PSH in the future. Our analysis shows that three major factors contribute to the observed differences between the maps. They are the size of maximum magnitude assigned to a given fault, the proportion of predicted earthquakes that are distributed off the major faults, and the use of geodetic strain data to predict earthquake rates.
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Crouse, C. B., and Behnam Hushmand. "Soil-structure interaction at CDMG and USGS accelerograph stations." Bulletin of the Seismological Society of America 79, no. 1 (February 1, 1989): 1–14. http://dx.doi.org/10.1785/bssa0790010001.

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Abstract Forced harmonic and impulse-response vibration tests were conducted at several California accelerograph stations operated by the California Division of Mines and Geology (CDMG) and U.S. Geological Survey (USGS) to determine the extent to which soil-structure interaction may be affecting the recorded ground motions. The results of the tests on the foundations comprising USGS Station 6 in the Imperial Valley and CDMG Cholame 1E and Fault Zone 3 stations in the Cholame Valley indicated the presence of highly damped fundamental frequencies between 20 and 40 Hz. However, at the much larger Differential Array station, a masonry-block structure approximately 6 km southwest of Station 6, a moderately damped fundamental frequency of 12 Hz was observed. Approximate transfer functions between earthquake motions recorded at the stations and the free-field motions were computed from the response data obtained from the forced harmonic vibration tests. For the three smaller stations, these functions showed peak amplification factors ranging from 1.25 to 1.4 at frequencies between 20 and 40 Hz. The amplification at smaller frequencies was insignificant. For the Differential Array station, the amplification factor was 1.5 at 12 Hz and was roughly 0.6 for frequencies between 14 and 25 Hz. These results suggest that soil-structure interaction will have little effect on ground motions recorded at the smaller stations provided that most of the energy in these motions is confined to frequencies less than approximately 20 Hz. However, at the Differential Array station, soil-structure interaction probably has had, and will continue to have, a significant influence on the motions recorded at this station.
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Fisher, Jesse. "Mines and Minerals of the Southern California Pegmatite Province." Rocks & Minerals 86, no. 1 (January 25, 2011): 14–35. http://dx.doi.org/10.1080/00357529.2011.537167.

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Wayne and Dona Leicht. "Specimen Gold Mines of California: An Overview of Notable Localities and Specimens." Rocks & Minerals 69, no. 6 (December 1994): 371–78. http://dx.doi.org/10.1080/00357529.1994.9925619.

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8

Olson, Robert A. "Legislative Politics and Seismic Safety: California's Early Years and the “Field Act,” 1925–1933." Earthquake Spectra 19, no. 1 (February 2003): 111–31. http://dx.doi.org/10.1193/1.1542890.

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California's first major earthquake safety policy initiative was 1933's Safety of Design and Construction of Public School Buildings Act, popularly known as the Field Act for its author, Assemblyman Don C. Field, who became the Field Act's legislative champion. The foundation for its enactment a month after the 10 March 1933 Long Beach earthquake was laid earlier by the 29 June 1925 Santa Barbara earthquake, the Dam Act of 1929, the drafting of a proposed Building Code for California, the formation of the Structural Engineers Association of California, and general acceptance of California's earthquake risk. This paper reviews the roles played by the pre-Field Act factors and the politics of the law's enactment, including the central role played by the State Division of Architecture in preparing the legislation and supporting Assemblyman Field's efforts.
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Maciag, Edward, Krystyna Kuzniar, and Tadeusz Tatara. "Response Spectra of Ground Motions and Building Foundation Vibrations Excited by Rockbursts in the LGC Region." Earthquake Spectra 32, no. 3 (August 2016): 1769–91. http://dx.doi.org/10.1193/020515eqs022m.

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Surface vibrations induced by mining rockbursts resulting from underground exploitation in the mines in western Poland were analyzed and classified into three different categories. Comparison of the accelerograms simultaneously recorded on the ground and on the foundations of typical buildings, as well as the response spectra determined on the basis of these records, leads to the conclusion that ground vibration characteristics have a significant influence on the nature of vibration transmission from the ground to the building foundation. Analysis of the response spectra, separately determined from both ground vibrations and building foundation vibrations, indicates that the standard response spectrum based on building foundation vibrations is more useful in the design of new buildings in areas of mining tremors than the spectrum based on ground vibrations. Moreover, the usefulness of the models of soil-structure interaction based on seismic data in California was investigated with respect to mine-induced rockbursts in Poland.
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Eichhubl, Peter, Peter S. D'Onfro, Atilla Aydin, John Waters, and Douglas K. McCarty. "Structure, petrophysics, and diagenesis of shale entrained along a normal fault at Black Diamond Mines, California—Implications for fault seal." AAPG Bulletin 89, no. 9 (September 2005): 1113–37. http://dx.doi.org/10.1306/04220504099.

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Dissertations / Theses on the topic "California. Division of Mines and Geology"

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Nelson, Stephen Eric 1960. "The geology and mineralization potential of the Bella Vista-Ingot area, Shasta County, California." Thesis, The University of Arizona, 1986. http://hdl.handle.net/10150/558057.

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Morehouse, Jeffrey Allen 1953-1985. "A synopsis of the geologic and structural history of the Randsburg Mining District." Thesis, The University of Arizona, 1988. http://hdl.handle.net/10150/558085.

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Thorp, Steven Gregory. "Environmental Assessment of Arsenic and Mercury Levels at the Garfield Mill Site, Calico, California." CSUSB ScholarWorks, 2019. https://scholarworks.lib.csusb.edu/etd/922.

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Environmental impacts of mining at Calico, California, are poorly understood in comparison to the details of its history of silver production. Human health risks associated with arsenic from the lode rock, as well as mercury from the silver milling process, include central nervous system damage, organ failure, and death. To quantify the potential human health risk and manage remediation of this site, tailings from the Garfield Mill site were digitally mapped and chemically analyzed by portable x-ray fluorescence, which permitted volumetric estimates of total mill tailings and the arsenic and mercury budget, as well as identification of anomalies in the distribution of these elements within the tailings deposit. Final products include a high-resolution digital orthomosaic map showing the extent of the tailings deposit, giving contours of arsenic and mercury distribution and identifying areas of high concern for future remediation. The information gathered during this study will be of immense use to the city of Barstow, providing a basis for future public health studies and assessments of human health risks in the area.
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Books on the topic "California. Division of Mines and Geology"

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H, Collins W. The geology of Gowganda mining division. Ottawa: Govt. Print. Bureau, 1997.

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H, Collins W. La géologie de la division minière de Gowganda. Ottawa: Impr. du gouvernement, 1997.

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3

Steven, Marguerite A. Reports for California by the U.S. Geological Survey, Water Resources Division. Sacramento, Calif: The Survey, 1989.

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4

California Desert Mineral Symposium (1989 Irvine, Calif.). The California Desert Mineral Symposium: Compendium. Sacramento, Calif: United States Dept. of the Interior, Bureau of Land Management, California State Office, 1989.

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Sherlock, Maureen G. Mineral resources of the Pit River Canyon Wilderness Study Area, Lassen County, California. [Washington]: U.S. G.P.O., 1986.

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Mines, Ontario Ministry of Northern Development and. Index to published report and maps: Mines and minerals division, 1891 to 1992. Toronto, Ont: Queen's Printer for Ontario, 1993.

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7

Sullivan, Morgan D. Reservoir characterization and sequence stratigraphy of the Domengine Formation, Black Diamond Mines Regional Preserve, Northern California: Domengine field trip guidebook. Los Angeles, Calif: Pacific Section, SEPM, Society for Sedimentary Geology, 2003.

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Survey, Ontario Geological. Index to published reports and maps, Mines and Minerals Division 1891 to 1992. Ontario: Ministry of Northern Development and Mines, 1993.

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9

Dellinger, D. A. California's unique geologic history and its role in mineral formation, with emphasis on the mineral resources of the California desert region. Washington: U.S. G.P.O., 1989.

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Forum on Geology of Industrial Minerals (29th 1993 Long Beach, Calif.). 29th Forum on the Geology of Industrial Minerals: Proceedings, Long Beach, California, April 25-30, 1993. Sacramento, CA (801 K Street, MS 08-38, Sacramento 95814-3531): California Dept. of Conservation, Division of Mines and Geology, 1995.

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Book chapters on the topic "California. Division of Mines and Geology"

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Carlmark, B., and A. Lindvall. "Mercury, a Toxic Metal, and Dental Amalgam Removal." In Geology and Health. Oxford University Press, 2003. http://dx.doi.org/10.1093/oso/9780195162042.003.0016.

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Mercury is an element with unique physical and chemical properties whose deleterious effects on various organ systems have been known for centuries. The metal (Hg°) mercury is the only element liquid at ambient temperatures and has an extremely high vapor pressure. Natural degassing of the earth’s crust by volcanoes and emissions from soils and waters are estimated to contribute on the order of 2700 to 30,000 tons per year (Nriagu 1989, Lindqvist 1991). A second source of mercury is anthropogenic from burning of coal or petroleum. The total input into the atmosphere may be up to 150,000 tons per year, with natural emissions accounting for the major input (Berlin 1986). However, estimations of contributions from different sources vary. Aristotle wrote about mercury as liquid silver (hydrargyrum) with the metallic mercury extracted in ancient times, as today, from the sulphide mineral cinnabar (HgS). Although technical developments have brought about more sophisticated methods of distilling mercury, all processes create mercury vapor, which is a potential hazard. Mercury mines pose environmental concern, due to mine tailings and waste rock contributing mercury-enriched sediment to watersheds (Rytuba 2000) such as in the California Coast Ranges (Rytuba 2000), the Idria mine in Slovenia (Hines et al. 2000), in Slovakia (Svoboda et al. 2000), and, perhaps most conspicuously, the mine tailings in Aznacollar, Spain, that caused a recent accident (Grimalt et al. 1999). Any industrial sites that utilize mercury during production may also produce contamination of the environment (Sunderland and Chmura 2000). The possible sources of mercury exposure are presented in Table 10.1. Amalgamation with mercury has been used as a method for beneficiation of gold and silver since Roman times. The total global release of mercury into the environment from these activities before 1930 was estimated as over 260,000 tons. Thereafter, with the introduction of cyanidation processing technology, the emissions declined (Lacerda and Solomons 1998). However, small-scale artisanal gold mining continues and is a serious hazard to largely unskilled persons in rural areas over the world.
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Sullivan, Raymond, Morgan D. Sullivan, Patrick Dedmon, and Stephen Edwards. "Occurrence and mining of coal and sand deposits in the Middle Eocene Domengine Formation of the Mount Diablo Coalfield, California." In Regional Geology of Mount Diablo, California: Its Tectonic Evolution on the North America Plate Boundary. Geological Society of America, 2021. http://dx.doi.org/10.1130/2021.1217(04).

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ABSTRACT Mount Diablo Coalfield was the largest producer of coal in California from the 1860s to 1906. The now-depleted coalfield is located on the northeast limb of the Mount Diablo anticline. The mineable coal seams occur in the Middle Eocene Domengine Formation, which is predominantly composed of quartz-rich sandstone with several thin coal seams. As many as 26 mine operations were established to mine the coal, and it has been estimated that the total production exceeded 4 million tons. The coal fueled the industrial growth of the major cities of northern California. The mines closed at the turn of the nineteenth century as competition from better coals from Washington Territory and overseas entered the market. After coal mining was abandoned, sand operations were established in the early and mid-twentieth century to mine the silica-rich sandstone. The extraction methods used for sand were underground room-and-pillar mining and surface open-pit mining. The high-quality sand was used widely in the production of pottery and glass, and in foundries. Previous studies have interpreted the environment of deposition of these quartz-rich sandstone and coal deposits as barrier island with tidal channels or delta, tidal shelf, and marsh complexes along a north-south–trending shoreline. However, the excellent exposures in the sand mines display abundant evidence for their deposition in a fluvial/estuarine system. Their regional distribution indicates that they were deposited in a northeast-southwest–trending incised-valley system formed by fluvial incision during a lowstand. The incised valley was filled with fluvial and estuarine deposits made up of quartz-rich sand brought in by streams that flowed westward from the Sierra Nevada.
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Motzer, William E., and David A. Mustart. "Mount Diablo mercury deposits." In Regional Geology of Mount Diablo, California: Its Tectonic Evolution on the North America Plate Boundary. Geological Society of America, 2021. http://dx.doi.org/10.1130/2021.1217(03).

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ABSTRACT The California Coast Ranges mercury deposits are part of the western North America mercury belt, in which mercury occurs most commonly as red cinnabar (α-HgS), sometimes associated with its high-temperature polymorph, metacinnabar (β-HgS). In the Coast Ranges, ores were deposited from hydrothermal solutions and range in age from Miocene to Holocene. Ore deposition at Mount Diablo generally occurred along active faults and associated extension fractures in the Franciscan complex, most often in serpentinite that had been hydrothermally altered to silica-carbonate rock. The Mount Diablo mine lies ~48 km (~30 miles) northeast of San Francisco in Contra Costa County and is mineralogically unique in California, because metacinnabar, the higher-temperature polymorph of mercury sulfide, is a major primary ore mineral in the deposit, while at all other mercury mines in California, it is quite rare. In addition, hydrothermal activity is so recent that sulfurous gases and methane continued to be released into the mine at least into the 1940s. Historically, long before active large-scale mining began in the 1800s, the Mount Diablo mercury deposits were known to the Indigenous people of the Ohlone tribes, who used the cinnabar in rituals as well as for red pigment to decorate their bodies, and as a prized trade item. The deposit was later rediscovered in 1863 and mined intermittently until 1958. The Mount Diablo mine and adjacent Rhyne (also variously spelled Ryne or Rhine) mine were the sites of most of the mercury operations in the region, and at both mines, mercury ore occurs in structurally controlled lenticular bodies of silica-carbonate rock and serpentinite. The total district production probably exceeded 12,300 flasks (at 76 pounds or ~34.5 kg per flask) at an estimated grade of 2711 g per metric ton. Low-grade ore reserves are believed to still exist, with 17,000 short tons of indicated and inferred ore. Other minor deposits of copper, silver, and gold occur on Mount Diablo, principally in and around Eagle Peak, but mercury is not associated with these deposits.
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McAllister, Charles A., and Arthur H. Barabas. "History of Las Mariposas Grant and the Pine Tree and Josephine Mines, Southern Mother Lode, California (1850-1933)." In Yosemite and the Mother Lode Gold Belt: Geology, Tectonics, and the Evolution of Hydrothermal Fluids in the Sierra Nevada of California. The Pacific Section American Association of Petroleum Geologist, 1990. http://dx.doi.org/10.32375/1990-gb68.4.

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Conference papers on the topic "California. Division of Mines and Geology"

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Adhikary, D. P., and H. Guo. "A Continuum Model for Simulating Mine Water Inflow and Gas Emission." In ASME 2008 Fluids Engineering Division Summer Meeting collocated with the Heat Transfer, Energy Sustainability, and 3rd Energy Nanotechnology Conferences. ASMEDC, 2008. http://dx.doi.org/10.1115/fedsm2008-55044.

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This paper describes a three-dimensional numerical model, called COSFLOW. It uses a Cosserat continuum approach for the efficient description of mechanical stress changes and deformation in weak layered rock, typical of coal measures. This mechanical model is coupled with a two-phase dual porosity fluid flow model to describe flow of water and gas through porous rock, desorption of gas from the matrix and subsequent flow of water and gas through the fracture network. The coupling includes simulation of permeability and porosity changes with rock deformation. Further the rock mass consisting of many interconnected fractures is idealized as an equivalent porous continuum using an equivalent anisotropic hydraulic conductivity matrix defined in terms of mean fracture spacing and mean aperture. This formulation is amenable to easy evaluation of modifications to the hydraulic conductivities as a function of stress induced changes in fracture aperture. The numerical code is used to simulate water inflow and gas emission in two Australian coal mines. The models at the two mine sites require significant geotechnical and hydrogeological data for adequate calibration. Many parameters in the model are not directly measurable and must be inferred by back-analysis of existing deformation, stress and hydrological data obtained during previous mining. The calibrated model is then used to make predictions for future mining panels. Water inflows at Mine A were predicted to increase significantly as mining progressed and this was supported by later measurements. This increase was attributed to wider longwall panels and increased roof rock permeability as more panels are mined. At Mine B, the model used measurements of gas production from predrainage boreholes for calibration and provided accurate predictions of average gas emissions into the longwall panel and post-drainage boreholes, although transient fluctuations were seen in the measurements. These were probably caused by local variations in geology or gas content or other factors not incorporated in the model.
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