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...

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...

The study area is located in the state of Minas Gerais, Brazil, among the municipalities of Pedro Leopoldo, Matozinhos, and Sete Lagoas, with Velhas River as the eastern boundary. It is located in the São Francisco Craton, where carbonated argillo-arenaceous sediments are emplaced giving origin to the Bambuí Group, in the São Francisco Basin. Despite the geological knowledge previously develope...