A common task in coal exploration is evaluating reserves by estimating some form of isopach map. Available machine-contouring packages, because of their gridding/contouring sequence, are generally unsatisfactory for this purpose. A different approach considers an isopach map as the difference between two complete digital models of the upper and lower surfaces involved. In addition, whereas a to...

The purpose of this study was to evaluate the large-scale structure, and hence available reserves, of the Lower Cretaceous Luscar Formation near Mountain Park, in the Foothills of Alberta. Coal resource evaluation clearly requires information on the mineable tonnages, as well as the grade, of the coal strata. In open pit mining, the volume of coal economically extracted from a seam is directly ...

The shale volume is one of the most important properties that can be computed depending on gamma ray log. Mishrif Formation (carbonate formation from middle Cenomanian- early Turonian) was studied for regional area and southern parts Iraq. log data seventeen wells ( Kf-3,Kf-4, Ad-1,Ad -2,Dh-1, Bu-47, Ns-2, Ns-4, Am-1,Am-2,Hf-2,Hf-115,Mj-3,Mj-15, Su-7,Wq-15 Lu-7) distributed in study were used t...

Due to poor preservation and lack of proximal tephra thickness data, no comprehensive isopach map has existed for the layer from major eruption Katla volcano in 1918. We present such a obtained by combining existing data on 1918 soil profiles with newly acquired 590 km2 My?rdalsjökull ice cap which covers caldera its outer slopes. A 20–30 m surface vents is inferred photos taken 1919. The great...

Analysis of Clementine remote sensing data permits new observations and therefore results to be obtained of basalt flow stratigraphy and underlying morphology and thus the geological evolution of the Moon. In particular the northern section of Oceanus Procellarum contains numerous impact craters that have penetrated the basalt to different depths, providing natural probes for estimating the num...

Vertical Electrical Sounding (VES) and pumping test (constant discharge recovery test) was carried out in parts of Boki Local Government Area to evaluate the groundwater potential, using aquifer characteristics study area. Sixteen (16) VES point employed for this Schlumberger array, with a maximum spread 400- 600m. The stimulated result from field data shows 3-5 layers resistivity model followi...

Characterization of explosive volcanic eruptive processes from interpretation of deposits is a key for assessing volcanic hazard and risk, particularly for infrequent large explosive eruptions and those whose deposits are transient in the geological record. While eruption size-determined by measurement and interpretation of tephra fall deposits-is of particular importance, uncertainties for suc...