نتایج جستجو برای: lithologic map
تعداد نتایج: 195447 فیلتر نتایج به سال:
Detection and verification of underground nuclear explosions (UNEs) can be improved with a better understanding the nature extent explosion-induced damage in rock effect this on radionuclide migration. Much previous work area has focused centimeter- to meter-scale manifestations damage, but predict permeability for migration, observations at smaller scales are needed determine deformation mecha...
The three-dimensional (3-D) modeling of glacial sediments often requires the use of lithologic logs from public water well data. The interpretation of such data is difficult because data collection methods are not standardized among contributing drillers, and the sequence of recorded lithologies contains both stratigraphic and facies-scale information. Geostatistics coupled with interpretation ...
The history of imaging radar technology development, technical advantages, current technology research status of lithologic identification with remote sensing have been comprehensively evaluated on this thesis. Radar technology applied in structure recognition, rock identification, and uranium exploration research are discussed in this paper. Examples of microwave-optical fusion technology have...
Paleosol carbonates from trenches excavated as part of a landscape-scale project in Bed I of Olduvai Gorge, Tanzania, were analyzed for stable carbon and oxygen isotopic composition. The approximately 60,000-year interval ( approximately 1.845-1.785 Ma) above Tuff IB records evidence for lake and fluvial sequences, volcanic eruptions, eolian and pedogenic processes, and the development of a flu...
Introduction: Along with the climate, Soil is an essential natural resource. Although soil studies in Iran have been started more than 50 years ago, the soil map of the country has not been fully prepared yet, and only 20-25% of the lands have been mapped already. Many soil maps of Iran need to be updated, but the common methods in soil mapping are costly and time-consuming. Hence, using data o...
This contribution discusses the problem of providing measures of significance of prediction results when the predictions were generated from spatial databases for landslide hazard mapping. The spatial databases usually contain map information on lithologic units, land-cover units, topographic elevation and derived attributes (slope, aspect, etc.) and the distribution in space and in time of cle...
A principal and independent component analysis (PCA ICA) a minimum noise fraction (MNFA) were applied in this study to Landsat 8 Operational Land Imager (OLI) images along the Adıyaman fault zone Eastern Turkey. These analyses indicated that lithologic units, patterns, morphological structural features can be mapped highly accurately by using spectral-matching techniques regions where rocks are...
A three-dimensional (3D) texture model was developed to help characterize the aquifer system of Central Valley, California (USA), for a groundwater flow model. The 52,000-km Central Valley aquifer system consists of heterogeneous valley-fill deposits. The texture model was developed by compiling and analyzing approximately 8,500 drillers’ logs, describing lithologies up to 950m below land surfa...
Based on geologic mapping, measured sections, and lithologic correlations, the local features of the upper and lower type areas of the Early Arikareean (30.8-20.6 million years ago) Sharps Formation are revised and correlated. The Sharps Formation above the basal Rockyford Member is divided into two members of distinct lithotypes. The upper 233 feet of massive siltstones and sandy siltstones is...
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