Sequential indicator conditional simulation and indicator kriging applied to discrimination of dolomitization in GER 63-channel imaging spectrometer data

Sequential indicator conditional simulation and indicator kriging applied to discrimination of dolomitization in GER 63-channel imaging spectrometer data

70A SITE INVESTIGATIONS:REMOTE SENSING Modern techniques for site selection have been developed during the last two decades or so, utilizing a teach...

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70A

SITE INVESTIGATIONS:REMOTE SENSING

Modern techniques for site selection have been developed during the last two decades or so, utilizing a teachable body of knowledge and a growing literature. The driving force has been the need for such a process in siting and licensing of critical facilities such as nuclear power plants. A list of crucial, documented steps includes: 1) Recognize need and identify affected population. 2) Conceptualize responsive project and establish project criteria. 3) Describe ideal site. 4) Use exclusion, preference and avoidance criteria to select candidate areas and then candidate sites. 5) Investigate to establish confidence. 6) Consult with affected population to deal with problems and reduce residual uncertainties. 7) Select and announce site. A recent innovation is the selfselection method. The Superconducting Supercullider serves as an example of this approach. (from Author)

952189 Remote sensing and GIS applied to rock quarry site selection G. Bonifazi, R. Casagrande, P. Massacci & F. Volpe, ITC Journal, 1994-1, 1994, pp 48-51.

952186 Geotechaicai iseues in site selection and project development G. F. Sowers, Bulletin - Association of Engineering Geologists, 31(2), 1994, pp 209-216.

952190 Sequential indicator conditional simalation and indicator kriging applied to discrimination of dolomitization in GER 63-channel imaging spectrometer data F. Van der Meer, Nonrenewable Resources, 3(2), 1994, pp 146-164.

The engineering geology/geotechnical engineering input to site selection concerns the impact of geology on the planning, design, construction and maintenance of the project and its components. The components directly involved are excavations, fills, foundations, earth-support structures, groundand surfaee-water supplies, waste treatment and storage systems. The principal effects of site geology are the costs of the project design required to adapt the proposed structures to the underlying soils and rocks. The risk of the geologic problems and hazards such as earthquakes, landslides and floods must be translated into project costs. (from Author)

952187 Risk-based probabilistic approach to site selection J. R. Keaton, Bulletin Association of Engineering Geologists, 31(2), 1994, pp 217-229.

Remote sensing data were combined with cartographic data in a GIS in an attempt to identify areas suitable for an open pit rock quarry. The purpose was to optimize quarry site selection in both economic and environmental terms. This required combining quantitative data and qualitative assumptions. The result was the definition of a relatively small area for the quarry, but one that satisfied the economic and environmental criteria. (Authors)

Laboratory reflectance spectra of sysnthetic mixtures of the carbonate minerals calcite and dolomite were measured in the visible and near-infrared wavelength region (0.4-2.5 Ixm) using a high-spectral resolution laboratory spectrometer. The spectra of calcite and dolomite could be characterized by the presence of a strong absorption band centered at 2.3465 pm for pure calcite and at 2.3039 pm for pure dolomite. Nine mixtures of intermediate composition were analyzed, demonstrating that the position of the carbonate absorption band is semilinearly related to the calcite content of the sample. Theoretically, this model allows mapping of dolomitization from high-spectral resolution remotely sensed imagery, GER 63-channel imaging spectrometer data from southern Spain were used to attempt such a mapping. (from Author)

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Geologic processes operating at a site can be described in terms of intensity or magnitude and frequency of occurrence. Beyond some threshold intensity, normal geologic processes have the potential to cause damage to property and/or injury to people. Once magnitude-frequency relationships have been defined for the various geologic processes, probabilities of their occurrence at damaging intensities or higher (exceedance probabilities) can be calculated for time periods of interest. A prohabilistic approach permits risk resulting from geologic hazards to be expressed in terms of dollar values. (from Author)

Remote sensing and photographic techniques 952188 GIS in seismic evaluation of essential facifities Tzyy-Shiou Chang, Hsiang-te Kung & S. Pezeshk, Microcomputers in Civil Engineering, 9(4), 1994, pp 271-280. This research used PC ARC/INFO, a geographic information system, to assess the potential seismic vulnerability of essential facilities in Memphis and Shelby County, Tennessee. In order to assess the potential vulnerability of essential facilities, evaluation criteria with rational weighting were identified. This research proved that GIS is a reliable and efficient tool for vulnerability assessment of essential facilities in an earthquake-prone area. (from Authors)

952191 Use of Thematic Mapper imagery to identify mineralization in the Santa Teresa district, Sonora, Mexico S. A. Bennett, W. W. Atkinson Jr & F. A. Kruse, International Geology Review, 35(11), 1994, pp 1009-1029. Integrated multispectral, geologic, mineralogic, and geochemical studies of the Santa Teresa district were used to map the lithology and identify zones of alteration characteristic of known gold deposits within the area. Forty sediment-hosted, bulk-mineable, leachable, fine-grained, disseminated gold prospects have been identified. A variety of deposit types exist in the district, having the characteristics of hot-spring sinter, skarns, epithermal high-level veins, bonanza silver veins, granite and porphyry-related mineralization, and sediment-hosted disseminated deposits. (from Authors)

952192 Refinements to the Fry method (1979) using image processing L. Ailleres & M. Champenois, Journal of Structural Geology, 16(9), 1994, pp 1327-1330. The Fry method is a very powerful way to determine the finite strain ellipse in a deformed rock, but the problems of reproducibility and objectivity of the measurements still remain. Using image processing, the program presented extracts the central void from Normalized Fry diagrams and computes the characteristics of the best fitted ellipse. (from Authors)