In this work, the concentration gradient (CG) analysis of local-scale exploration for Porphyry-Cu deposits is applied in two zones using the G(Vz) index (CG(Zn*Pb)/CG(Cu*Mo)). The first zone is covered by a 1:2000 map of the Sungun and Astamal areas in NW Iran and the second one in the Inza area in British Columbia, Canada. The rock samples are taken from Sungun and Astamal and the soil samples...

We present a new 3D correlation imaging approach for magnetic total field anomaly and its vertical gradient for deriving a 3D equivalent magnetic dipole distribution in the subsurface. In this approach, we divide the subsurface space into a 3D regular grid, and then at each grid node calculate cross correlation between the observed magnetic total field anomaly (or its vertical gradient) and the...

There has been much work in exploiting the potential field relationships to extract information from the data. Kanasewich and Agarwal in 1970 explored the validity of examining the magnetization to density ratio in the wavenumber domain as an interpretation tool. Directly combining magnetic and gravity derived gravity gradient data in the spatial domain through the Poisson relation has been acc...

Hydrothermal processes in the Earth’s crust can result in ore deposits characterized by high concentrations of metals with fractal or multifractal properties. This paper shows that stream sediments in the neighborhoods of ore deposits also can have singular properties for ore-mineral and associated toxic trace elements. We propose a new local singularity mapping method for assembling element co...

Cortez G, et al. BMJ Case Rep 2017. doi:10.1136/bcr-2017-220718 Description A 3-year-old child with history of a large secundum atrial septal defect came to our institution for surgical cardiovascular evaluation. The patient had reached all developmental milestones and was completely asymptomatic. During imaging workup, a three-dimensional magnetic resonance angiography (MRA) reconstruction sho...

As exploration is time-consuming, costly, and risky, determination of the erosion surface a metalliferous deposit before geophysical surveying drilling might be very helpful. Geochemical haloes can used to determine whether supra-ore or sub-ore thus reduce risk operations. The aim this investigation North ROK porphyry (NRPD) in northwestern British Columbia Canada using linear productivity (LP)...

Based on hyper spectral data mining techniques, field spectra data is used to study the diagnosable spectral signatures of uranium mineralization factors in this paper, and the spectral features of pluton, ore-controlling fault and hydrothermal alteration including alkali metasomatism, hematitization, chloritization and hydromicazation are acquired and analyzed, the diagnosable spectra identifi...

Research on the prosodic structure of languages has been based on processes such as durational patterns and sandhi phenomena. One of the underlying assumptions is that such processes signal, and are regulated by, the same structure. This paper is part of ongoing research on the effect of prosodic boundary strength on segmental and supra-segmental phenomena. It investigates the effect of boundar...