September 2010
Estimation of near-field peak particle velocity - a mathematical model
Peak particle velocity (PPV) is an important parameter in estimation of rock and structural damage. In general, ground vibration is measured using a seismograph at a distance from the blast face to keep the instrument safe. However, rock damage due to blasting occurs very close to the blast hole and thus, PPV at the damaged zone can not be measured directly. In the far-field observations charge is considered...
September 2013
Ocellar lamprophyre dyke bearing mineralization, Wadi Nugrus, Eastern Desert, Egypt: Geology, mineralogy and geochemical implications
Ocellar lamprophyre dyke (ENE-WSW) is recorded at Wadi Nugrus, Eastern Desert, Egypt. It cuts across porphyritic biotite granites and varies in thickness from 0.5 to 1.5 m and up to 3 km in length. The lamprophyre dyke is altered and it is characterized by porphyritic and panidiomorphic textures with plagioclase, olivine and augite, constituting the porphyritic phase in a fine groundmass of the same...
September 2010
Hydro-chemical study of groundwater from North-eastern parts of Gombe, North-eastern Nigeria
Twenty groundwater samples were collected from hand dug wells in North-Eastern parts of Gombe town for the purpose of evaluating its quality for culinary and agricultural uses. The area studied is bounded by latitude 11° 09’ - 11° 27’ and longitude 10° 15’ - 10° 27’ covering an area of about 940 Km2. Quantitative analysis of the water samples was carried out using...
September 2010
Isotope dilution with high pressure asher acid digestion for the determination of platinum group elements in chromitite from katpal chromite mine in the Sukinda Ultramafic Complex, Eastern India
Chromitite samples were collected from a core from the Katpal chromite mine of Sukinda chromite field for characterization of mineralogy especially the platinum group minerals (PGM). Isotope dilution with High Pressure Asher (HPA-ID) technique has been used in this study to evaluate its ability to determine compositions from small quantities of sample (two grams of sample). Enrichment of Iridium group of...
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