Digital edge detector operations using magnetic derivatives in conjunction with spectra depth analysis were performed on high-resolution aeromagnetic signals to enhance the delineation and interpretation of depth, structural, intrasedimentary features within Middle Benue Trough (MBT) North Central Nigeria, which could serve as a guide for mineral exploration. The revealed high-amplitude short-w...

The role that phosphorite formation, the ultimate source rock for fertilizer phosphate reserves, plays in the marine phosphorus (P) cycle has long been debated. A shift has occurred from early models that evoked strikingly different oceanic P cycling during times of widespread phosphorite deposition to current thinking that phosphorite deposits may be lucky survivors of a series of inter-relate...

[1] Radar signals can penetrate loose sediments such as dust, sand, and alluvium to reveal buried geologic structures obscured in visible and infrared images. In anticipation of data from instruments such as the MARSIS and SHARAD radar sounders and potential future imaging SAR and rover-mounted GPR instruments, measurements have been made to characterize electrical loss factors of a Martian dus...

The geochemistry of river sediments is routinely used to obtain information about geologic and environmental processes occurring upstream. For example, downstream samples are constrain chemical weathering physical erosion rates upstream, as well the locations mineral deposits or contaminant sources. Previous work has shown that, by assuming conservative mixing, can be reliably predicted given a...

GIS can be readily used to manage and analyze 2D information and also afford 3D visualization of surface features. However, general-purpose GIS packages do not offer capabilities for constructing or visualizing 3D geologic models. GIS tools must, therefore, be appropriately tailored to handle geologic data and accommodate the special spatial analysis needs of geologic information. Since 3D geol...

Sulfide is a common product of marine anaerobic respiration, and a potent reactant biologically and geochemically. Here we demonstrate the impact on microbial communities with the removal of sulfide via electrochemical methods. The use of differential pulse voltammetry revealed that the oxidation of soluble sulfide was seen at +30 mV (vs. SHE) at all pH ranges tested (from pH = 4 to 8), while n...

Visualization is the important means of understanding and explaining the geologic phenomena from the bore huge data sources. In this paper, taking the geologic exploration engineering as research objects, the authors discuss the three-dimensional geologic phenomena, propose a blended data model integrated vector and raster data, analyze the necessity and technique route of visualization, and se...