The failure rate recorded in most groundwater projects has informed the general acceptance of geo... more The failure rate recorded in most groundwater projects has informed the general acceptance of geophysical survey as a prerequisite to any successful water well project. The Vertical electrical sounding (VES) technique is extensively gaining wider applications in environmental, groundwater and engineering geophysical investigations. Geological studies of the Masuri area and its environs indicated biotite granite, granite-gneiss and rocks of the Keri-Keri Formation as the major rock types. A total number of 14 VES locations designated for the hydrogeological studies have indicated the predominance of consolidated formations with primary porosity but lacking in permeability. The interpretation of the VES has indicated 3 to 4 layer cases as top soils, sandstone, claystones and crystallinebasement. The layers with low resistivities correspond to the claystones. The study area is generally underdeveloped in terms of groundwater resources as acute water shortage has been witnessed in many ...
Environmental and Earth Sciences Research Journal, 2018
The Study area is located in Arikya Tsauni, in Lafia East Local Government Area of Nassarawa Stat... more The Study area is located in Arikya Tsauni, in Lafia East Local Government Area of Nassarawa State. Bounded by latitude 08 0 46ʹ 44 ʺ N to 08 0 48ʹ 44 ʺ N and longitude 008 0 38ʹ 34 ʺ E to 008 0 41ʹ 14 ʺ E, it forms part of Wamba sheet 210NW. The study addressed the geology and petrography of the study area. The geological mapping indicated five (5) rock types namely, migmatite, foliated gneiss, granite gneiss, quartzite and pegmatite. The quartzite and pegmatite ridges are striking in NE-SW direction. Petrographic studies showed the presence of the various rock forming minerals which include-plagioclase, quartz, biotite, microcline, hornblende and opaque minerals as observed within the field of view under plane and crossed polarized light. Careful study of the pegmatite in the study area has clearly shown that they are barren. The structural features of the study area were seen as foliation, joints, comb structures, veinlets and faults, where the major structural trends were in the NE-SW, NNE-SSW directions, corresponding to that of the underlying Basement Complex. Economically, the study area portend the ability to host quarries, as the rocks would serve as major source of construction materials.
Science Forum (Journal of Pure and Applied Sciences), 2020
The study addressed the geology, petrography and associated microstructures of the study area. Th... more The study addressed the geology, petrography and associated microstructures of the study area. The geological mapping indicated three to four (3-4) including various migmatite morphological units, granitoid and leucosome bands occurring in and around Lallangi in the Northern Nigerian Basement complex of Nigeria. Petrographic studies showed the presence of the various metamorphic and rock forming minerals which include - orthopyroxene, biotite, plagioclase, quartz, microcline, and graphite as observed within the field of view under plane and crossed polarized light Field. Field geology and petrographic analyses of structures carried out from outcrop to microscopic scale in the area reveal that the rocks were affected by multiple phases of deformations; the syn-tectonic deformation that includes regional metamorphism and post-tectonic typified by prograde metamorphism and shearing. The grade of metamorphism varies from low grade in the metatexites to medium grade that increases progressively from the mesocratic diatexites through to the granulitic granitoids manifested by foliation in biotites of the metatexites, coarsening of quartz grains and development of porphyroblastic microcline in the diatexite migmatite. The microstructures in the form of interlobing/ grain boundary migration of quartz, undulose extinction and interstitial filling of micro fractures, reveal that the rocks of the area are generally deformed.
Science Forum (Journal of Pure and Applied Sciences)
Bauchi is a part of sheet 149NE which falls within the Northern Basement Complex of Nigeria. In t... more Bauchi is a part of sheet 149NE which falls within the Northern Basement Complex of Nigeria. In this study, the area was mapped on a scale of 1:25,000. Samples were collected at the flanks of the outcrops, railway cuts, road cuts as well as blasting sites within the area. At each sampling point, two or more samples were collected based on morphological variations. The first-and second-order morphological classifications of migmatites as being metatexite or diatexite such as banded orthogneiss, stromatic, schlieren, or nebulite were used as the guiding principle. This technique was repeated for the rest of the sampling points in the area covering about fifteen (15) different locations. A total of 10 representative samples were studied geochemically. Together with the field relationship and morphological features, it was observed that the area has five (5) different lithologic units as metasediment (quartzite), melanocratic diatexite (schlieren), and nebulites (bauchite, quartz diorite, and granulitic granite) in a sequence of prograde metamorphism. The SiO 2 content for the samples is between 64.2 and 77.8 wt%. Save for CaO, K 2 O, and Sr, all the major oxides and minor elements show a negative correlation with the silica. Zr and Hf show no clear correlation with the SiO 2. Negative Nb, Ta, Ce, and Y anomalies are characteristics of volcanic and plutonic rocks formed above subduction zones. It further signifies the contribution of mantle materials to the melt. All the samples are ferroan, which probably reflects derivation from reduced basaltic rock either by fractional crystallization or partial melting, and peraluminous, which implies high development of K-feldspar that is necessary for the formation of the nebulites. The rise in alumina and a corresponding decline in silica indicate fractionation which is yet against normal granitization process (magmatism).
The failure rate recorded in most groundwater projects has informed the general acceptance of geo... more The failure rate recorded in most groundwater projects has informed the general acceptance of geophysical survey as a prerequisite to any successful water well project. The Vertical electrical sounding (VES) technique is extensively gaining wider applications in environmental, groundwater and engineering geophysical investigations. Geological studies of the Masuri area and its environs indicated biotite granite, granite-gneiss and rocks of the Keri-Keri Formation as the major rock types. A total number of 14 VES locations designated for the hydrogeological studies have indicated the predominance of consolidated formations with primary porosity but lacking in permeability. The interpretation of the VES has indicated 3 to 4 layer cases as top soils, sandstone, claystones and crystallinebasement. The layers with low resistivities correspond to the claystones. The study area is generally underdeveloped in terms of groundwater resources as acute water shortage has been witnessed in many ...
Environmental and Earth Sciences Research Journal, 2018
The Study area is located in Arikya Tsauni, in Lafia East Local Government Area of Nassarawa Stat... more The Study area is located in Arikya Tsauni, in Lafia East Local Government Area of Nassarawa State. Bounded by latitude 08 0 46ʹ 44 ʺ N to 08 0 48ʹ 44 ʺ N and longitude 008 0 38ʹ 34 ʺ E to 008 0 41ʹ 14 ʺ E, it forms part of Wamba sheet 210NW. The study addressed the geology and petrography of the study area. The geological mapping indicated five (5) rock types namely, migmatite, foliated gneiss, granite gneiss, quartzite and pegmatite. The quartzite and pegmatite ridges are striking in NE-SW direction. Petrographic studies showed the presence of the various rock forming minerals which include-plagioclase, quartz, biotite, microcline, hornblende and opaque minerals as observed within the field of view under plane and crossed polarized light. Careful study of the pegmatite in the study area has clearly shown that they are barren. The structural features of the study area were seen as foliation, joints, comb structures, veinlets and faults, where the major structural trends were in the NE-SW, NNE-SSW directions, corresponding to that of the underlying Basement Complex. Economically, the study area portend the ability to host quarries, as the rocks would serve as major source of construction materials.
Science Forum (Journal of Pure and Applied Sciences), 2020
The study addressed the geology, petrography and associated microstructures of the study area. Th... more The study addressed the geology, petrography and associated microstructures of the study area. The geological mapping indicated three to four (3-4) including various migmatite morphological units, granitoid and leucosome bands occurring in and around Lallangi in the Northern Nigerian Basement complex of Nigeria. Petrographic studies showed the presence of the various metamorphic and rock forming minerals which include - orthopyroxene, biotite, plagioclase, quartz, microcline, and graphite as observed within the field of view under plane and crossed polarized light Field. Field geology and petrographic analyses of structures carried out from outcrop to microscopic scale in the area reveal that the rocks were affected by multiple phases of deformations; the syn-tectonic deformation that includes regional metamorphism and post-tectonic typified by prograde metamorphism and shearing. The grade of metamorphism varies from low grade in the metatexites to medium grade that increases progressively from the mesocratic diatexites through to the granulitic granitoids manifested by foliation in biotites of the metatexites, coarsening of quartz grains and development of porphyroblastic microcline in the diatexite migmatite. The microstructures in the form of interlobing/ grain boundary migration of quartz, undulose extinction and interstitial filling of micro fractures, reveal that the rocks of the area are generally deformed.
Science Forum (Journal of Pure and Applied Sciences)
Bauchi is a part of sheet 149NE which falls within the Northern Basement Complex of Nigeria. In t... more Bauchi is a part of sheet 149NE which falls within the Northern Basement Complex of Nigeria. In this study, the area was mapped on a scale of 1:25,000. Samples were collected at the flanks of the outcrops, railway cuts, road cuts as well as blasting sites within the area. At each sampling point, two or more samples were collected based on morphological variations. The first-and second-order morphological classifications of migmatites as being metatexite or diatexite such as banded orthogneiss, stromatic, schlieren, or nebulite were used as the guiding principle. This technique was repeated for the rest of the sampling points in the area covering about fifteen (15) different locations. A total of 10 representative samples were studied geochemically. Together with the field relationship and morphological features, it was observed that the area has five (5) different lithologic units as metasediment (quartzite), melanocratic diatexite (schlieren), and nebulites (bauchite, quartz diorite, and granulitic granite) in a sequence of prograde metamorphism. The SiO 2 content for the samples is between 64.2 and 77.8 wt%. Save for CaO, K 2 O, and Sr, all the major oxides and minor elements show a negative correlation with the silica. Zr and Hf show no clear correlation with the SiO 2. Negative Nb, Ta, Ce, and Y anomalies are characteristics of volcanic and plutonic rocks formed above subduction zones. It further signifies the contribution of mantle materials to the melt. All the samples are ferroan, which probably reflects derivation from reduced basaltic rock either by fractional crystallization or partial melting, and peraluminous, which implies high development of K-feldspar that is necessary for the formation of the nebulites. The rise in alumina and a corresponding decline in silica indicate fractionation which is yet against normal granitization process (magmatism).
Uploads
Papers by Bunyaminu isah