It is widely-recognized that space, together with its relation to application features, plays a vital role in several domains such as geographic information systems, multimedia systems, cartography, and remote sensing. In all these domains a multitude of rich and complex information is involved. Therefore, it is quite important to have tools for efficient representation, retrieval, and reasonin...

The Dawn Framing Camera (FC) has imaged the northern hemisphere of the Asteroid (4) Vesta at high spatial resolution and coverage. This study represents the first investigation of the overall geology of the northern hemisphere (22–90 N, quadrangles Av-1, 2, 3, 4 and 5) using these unique Dawn mission observations. We have compiled a morphologic map and performed crater size–frequency distributi...

U.S. Department of the Interior U.S. Geological Survey Wheeler Geologic Monument (Half Moon Pass quadrangle) provides exceptional exposures of three outflow tuff sheets erupted from the San Luis caldera complex. Lowest sheet is Rat Creek Tuff, which is nonwelded throughout but grades upward from light-tan rhyolite (~74% SiO 2 ) into pale brown dacite (~66% SiO 2 ) that contains sparse dark-brow...

This report describes the results of a comprehensive surficial geologic mapping effort undertaken to support the development of a series of relative flood hazard maps of the Ivanpah Valley area, Clark County, Nevada. The study area spans approximately 1030 km2 (398 mi2) and is defined by all of three and part of one internally drained basins between Las Vegas and Primm, Nevada. The proximity of...

gamma-rays emitted from the ground surface relate to the primary mineralogy and geochemistryof the bedrock, and the secondary weathered materials. this information can contribute significantly to anunderstanding of the geochemical and pedogenetic history of a region. the main aim of this paper was to study the relationship between ground gamma-ray data and basement geochemistry in the lese catc...

Abstract The current study is mainly devoted to the integration, analysis, and interpretation of available geologic, remote sensing, potential field data (mainly magnetic) delineate subsurface geologic structural elements controlling western part Baranes, South Eastern Desert, Egypt, its relation southwestern desert regime. Additionally, detect mineralization zones for future mining plans in ar...

Coordinated research efforts are underway on three continents (North America, Europe, Australia) to study naturally occurring carbon dioxide deposits, in order to address fundamental questions and concerns about the long-term storage of CO2 in geologic formations. Natural accumulations of carbon dioxide exist in many geologic basins. Some deposits are stored in secure and impermeable traps, whe...