Geophysical studies over Kartchner Caverns State Park mapped structure and groundwater patterns beneath valley alluvium and determined the geophysical expression of the caverns at the surface. Three techniques were employed: electromagnetics (EM), gravity, and natural potential (NP). Electromagnetic traverses in the area failed to detect the voids, owing to the very low conductivity of the carb...

The Manta-Ray Foraging Optimization has been adapted and implemented in computing model parameters from potential field anomalies originating two-dimensional dipping faults. inversion technique was originally demonstrated on magnetic uncorrupted–then, corrupted synthetic datasets. Thereafter, it experimented profiles taken mining fields the United States, Australia. results obtained showed that...

Abstract Travertines are susceptible to fracturing/ cracking, making it difficult extract large uncracked blocks of significant commercial value. In our study, we used the GPR – Ground Penetrating Radar and other geophysical methods (resistivity seismic methods) evaluate degree fracturing. Following interpretation longitudinal transversal profiles, corroborated with resistivities minima, led us...

VOLUME 15, NUMBER 2, 2005 LINCOLN LABORATORY JOURNAL 299 M odern spaceborne atmospheric sounders measure radiance with unprecedented resolution and accuracy in spatial, spectral, and temporal dimensions. For example, the Atmospheric Infrared Sounder (AIRS), operational on the NASA Earth Observing System (EOS) Aqua satellite since 2002, provides a spatial resolution of 15 km, a spectral resoluti...

The application of the pre-stack depth migration (PSDM) method using deep seismic reflection data is still a challenge. In this paper, dataset collected from Bohai Bay Basin used to test applicability method. After improving signal-to-noise ratio prestack gathers and building an accurate velocity model capturing lateral vertical variations, high-quality profile obtained. This shows detailed cru...

OBJECTIVES The goal of resident selection is twofold: (1) select candidates who will be successful residents and eventually successful practitioners and (2) avoid selecting candidates who will be unsuccessful residents and/or eventually unsuccessful practitioners. Traditional tools used to select residents have well-known limitations. The Hartman Value Profile (HVP) is a proven adjuvant tool to...

Investigations of the Mantle Transition Zone (MTZ; 410-660 km deep) by deformation experiments and geophysical methods suggest that the MTZ has distinct rheological properties, but their exact cause is still unclear due to the lack of natural samples. Here we present the first direct evidence for crystal-plastic deformation by dislocation creep in the MTZ using a chromitite from the Luobusa per...

The Smart Weapons Test Range (SWTR) is a new facility constructed specifically for the development and testing of futuristic intelligent battlefield sensor networks within the Yuma Proving Ground (YPG), Arizona. In this paper, results are presented for an extensive high-resolution geophysical characterization study at the SWTR site along with validation using 3-D modeling. In this study, severa...

This paper explores the geomorphological features of Ninety East Ridge (NER), Indian Ocean. NER presents especially long and linear topographic structure formed as a result complex regional geophysical geologic development. The research is based on high precision bathymetric, geological gravity data. submarine geomorphology was digitized three cross-sectional profiles. profiles were selected in...