joyce ramadan | Abubakar Tafawa Balewa University, Bauchi Nigeria (original) (raw)
Papers by joyce ramadan
IOSR journal of applied geology and geophysics, Jun 1, 2017
An integrated use of geo-electrical resistivity soundings and hydrogeologic methods were employed... more An integrated use of geo-electrical resistivity soundings and hydrogeologic methods were employed in the investigation for groundwater resource,evaluation and development around Obu-Okpella, nearBuacement factory, Southwestern Nigeria. The study area is underlain by Basement Complex rocks which consist of migmatites, granite gneiss and pegmatites.A total of 35 vertical electric soundings (VES) and four exploratory boreholes were carried out in the study. The geo-electric resistivity sounding datawere interpreted using IXD interpexsoftware and the VES interpretation revealed 4 geo-electric layers/lithologic units from the geo-electric parameters. The geo-electric layers are-(1) Topsoil from 0 to 2.5m, (2) weathered basement from 3.3 to 49m, (3) Slightly weathered/Fresh basement from 5m to ∞, (4) Fractured basement (≥5 to 150m) and are characterised by resistivity value range of 14 to 297 ohm-m, 16 to 98 ohm-m, >1000 ohm-m and < 50 to 31056 ohm-m respectively. Four exploratory boreholes numbered BH1, BH2, BH3, and BH4 were drilled on VES 1, 17, 18 and 31 to a depth of 180, 150, 58 and 110m respectively. The VES interpretation and boreholelithologic logs were well correlated. The main aquifer is in the deep and highly fractured basement rocks with average depth of 50-150m. The pumping test results for the boreholes number BH1, BH2, BH3 and BH4 were 0.8l/s, 1.87l/s, 1.2l/s and 1.7l/s respectively with very maximum dynamic water level of <10m.Transitivity value of the aquifer for BH1, BH2, BH3 and BH4 are 2.58m 2 /day, 21.43 m 2 /day, 55.62 m 2 /day, and 37.98 m 2 /day respectively indicates that the lithostrata constituting the aquifer is fair in transmitting the groundwater. With a volume of 12,000 l/day, 97,000 l/day, 91,000 l/day and 51,840 l/day for BH1, BH2, BH3 and BH4, the total volume of water for the four boreholes is 253,560 l/day.
Journal of Geoscience and Environment Protection, 2019
Concentration of heavy metals from surface and groundwater within the communities were determined... more Concentration of heavy metals from surface and groundwater within the communities were determined in order to assess the health risks linked to the use/consumption of same. Furthermore, the cancer risk for adults in surface water revealed medium to high cancer risk for arsenic (As); low to medium cancer risk for cadmium (Cd) and very high cancer risk for chromium (Cr). In addition, the cancer risk for adults in groundwater is as follows: high cancer risk for As; low cancer risk for Cd and very high cancer risk for Cr while that for children is very high cancer risk for As and Cr and then low cancer risk for Cd. The findings from this research confirm that the inhabitants within the study area are at direct health risk (carcinogenic and non-carcinogenic) due to the alternate use of surface and groundwater without any form of treatment.
This study was undertaken to identify contaminants and major sources of the contaminants of surfa... more This study was undertaken to identify contaminants and major sources of the contaminants of surface water in relation to past land -use (mining and agricultural activities). A pair of twelve (12) surface water samples were collected in sterilized containers and taken to the laboratories. These were examined for sodium, calcium, magnesium, potassium, iron ,lead, arsenic and cadmium . Also the microbial analysis of the water samples was carried out to determine the coliform present in the water. The pH and temperature were determined in situ. The results of the chemical analysis revealed all samples contain arsenic above the WHO standard, similarly a total of seven (7) samples collected at P3 ,P4, P6,P10, P11, and P12 were in excess of iron as against the WHO standard. In the same way, five (5) samples (P1, P7, P8, P9 and P10) contained lead beyond the required standard. The microbial analysis uncovered that all the samples amassed within the study area were contaminated with coliform...
Dimension stone can also be defined as any rock that has been removed from its natural place of o... more Dimension stone can also be defined as any rock that has been removed from its natural place of origin for ultimate use in construction or monuments where three dimensions of size together with shape and other elements of appearance, such as colour, grain texture and pattern and surface finish, are normal requirements; it is usually quarried for the purpose of obtaining blocks or slabs that meet specification of size and shape. The availability of Porphyritic Older Granites and Charnokite rocks within the study area in abundance stimulated the examination of the rock samples in various capacities to ascertain their suitability for the purpose of dimension stone quarry. The structural disposition of these rock types were observed, recorded and analysed which reveal a general orientation in the NE-SW directions concurring with the regional structural trend of the area as well as the mineral compositions. In addition, the structures were well spaced in such a way as to optimize block e...
This research involved the use of electrical resistivity technique which is considered most appro... more This research involved the use of electrical resistivity technique which is considered most appropriate for subsurface investigation of structures and/or lithologies associated with the occurrence of groundwater; to investigate the geo-electric characteristics of the subsurface formations that underlie the study area. The aim was to provide a data base for sustainable groundwater development in the study area. The geophysical investigation involved the acquisition of twenty two (22) vertical electrical sounding (VES) data via the ABEM terrameter SAS 300C model using the Schlumberger configuration. These were quantitatively and qualitatively analysed using partial curve matching and computer iteration to obtain subsurface information in the study area. The results obtained from the interpretation of the VES data show earth models with geo electric layers ranging from three (3) to four (4). The representative type curves are H, A, HA, QH, HK and KH types. The subsurface is made up o...
IOSR journal of applied geology and geophysics, Jun 1, 2017
An integrated use of geo-electrical resistivity soundings and hydrogeologic methods were employed... more An integrated use of geo-electrical resistivity soundings and hydrogeologic methods were employed in the investigation for groundwater resource,evaluation and development around Obu-Okpella, nearBuacement factory, Southwestern Nigeria. The study area is underlain by Basement Complex rocks which consist of migmatites, granite gneiss and pegmatites.A total of 35 vertical electric soundings (VES) and four exploratory boreholes were carried out in the study. The geo-electric resistivity sounding datawere interpreted using IXD interpexsoftware and the VES interpretation revealed 4 geo-electric layers/lithologic units from the geo-electric parameters. The geo-electric layers are-(1) Topsoil from 0 to 2.5m, (2) weathered basement from 3.3 to 49m, (3) Slightly weathered/Fresh basement from 5m to ∞, (4) Fractured basement (≥5 to 150m) and are characterised by resistivity value range of 14 to 297 ohm-m, 16 to 98 ohm-m, >1000 ohm-m and < 50 to 31056 ohm-m respectively. Four exploratory boreholes numbered BH1, BH2, BH3, and BH4 were drilled on VES 1, 17, 18 and 31 to a depth of 180, 150, 58 and 110m respectively. The VES interpretation and boreholelithologic logs were well correlated. The main aquifer is in the deep and highly fractured basement rocks with average depth of 50-150m. The pumping test results for the boreholes number BH1, BH2, BH3 and BH4 were 0.8l/s, 1.87l/s, 1.2l/s and 1.7l/s respectively with very maximum dynamic water level of <10m.Transitivity value of the aquifer for BH1, BH2, BH3 and BH4 are 2.58m 2 /day, 21.43 m 2 /day, 55.62 m 2 /day, and 37.98 m 2 /day respectively indicates that the lithostrata constituting the aquifer is fair in transmitting the groundwater. With a volume of 12,000 l/day, 97,000 l/day, 91,000 l/day and 51,840 l/day for BH1, BH2, BH3 and BH4, the total volume of water for the four boreholes is 253,560 l/day.
Journal of Geoscience and Environment Protection, 2019
Concentration of heavy metals from surface and groundwater within the communities were determined... more Concentration of heavy metals from surface and groundwater within the communities were determined in order to assess the health risks linked to the use/consumption of same. Furthermore, the cancer risk for adults in surface water revealed medium to high cancer risk for arsenic (As); low to medium cancer risk for cadmium (Cd) and very high cancer risk for chromium (Cr). In addition, the cancer risk for adults in groundwater is as follows: high cancer risk for As; low cancer risk for Cd and very high cancer risk for Cr while that for children is very high cancer risk for As and Cr and then low cancer risk for Cd. The findings from this research confirm that the inhabitants within the study area are at direct health risk (carcinogenic and non-carcinogenic) due to the alternate use of surface and groundwater without any form of treatment.
This study was undertaken to identify contaminants and major sources of the contaminants of surfa... more This study was undertaken to identify contaminants and major sources of the contaminants of surface water in relation to past land -use (mining and agricultural activities). A pair of twelve (12) surface water samples were collected in sterilized containers and taken to the laboratories. These were examined for sodium, calcium, magnesium, potassium, iron ,lead, arsenic and cadmium . Also the microbial analysis of the water samples was carried out to determine the coliform present in the water. The pH and temperature were determined in situ. The results of the chemical analysis revealed all samples contain arsenic above the WHO standard, similarly a total of seven (7) samples collected at P3 ,P4, P6,P10, P11, and P12 were in excess of iron as against the WHO standard. In the same way, five (5) samples (P1, P7, P8, P9 and P10) contained lead beyond the required standard. The microbial analysis uncovered that all the samples amassed within the study area were contaminated with coliform...
Dimension stone can also be defined as any rock that has been removed from its natural place of o... more Dimension stone can also be defined as any rock that has been removed from its natural place of origin for ultimate use in construction or monuments where three dimensions of size together with shape and other elements of appearance, such as colour, grain texture and pattern and surface finish, are normal requirements; it is usually quarried for the purpose of obtaining blocks or slabs that meet specification of size and shape. The availability of Porphyritic Older Granites and Charnokite rocks within the study area in abundance stimulated the examination of the rock samples in various capacities to ascertain their suitability for the purpose of dimension stone quarry. The structural disposition of these rock types were observed, recorded and analysed which reveal a general orientation in the NE-SW directions concurring with the regional structural trend of the area as well as the mineral compositions. In addition, the structures were well spaced in such a way as to optimize block e...
This research involved the use of electrical resistivity technique which is considered most appro... more This research involved the use of electrical resistivity technique which is considered most appropriate for subsurface investigation of structures and/or lithologies associated with the occurrence of groundwater; to investigate the geo-electric characteristics of the subsurface formations that underlie the study area. The aim was to provide a data base for sustainable groundwater development in the study area. The geophysical investigation involved the acquisition of twenty two (22) vertical electrical sounding (VES) data via the ABEM terrameter SAS 300C model using the Schlumberger configuration. These were quantitatively and qualitatively analysed using partial curve matching and computer iteration to obtain subsurface information in the study area. The results obtained from the interpretation of the VES data show earth models with geo electric layers ranging from three (3) to four (4). The representative type curves are H, A, HA, QH, HK and KH types. The subsurface is made up o...