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|Paper Type||:||Research Paper|
|Title||:||Near Surface Anomaly Depth Estimation Using Downward Continuation|
Abstract: Depth estimation in gravity survey is very important in mineral prospecting. It does not only inform the choice of the optimal point for mineral exploration but also very important in analyzing economical viability of the mines. A number of depth determination techniques ranging from empirically derived formulae to modern automated analysis of gravity data have been developed. In this study, downward continuation filtering technique has been used to filter the near surface perturbations on the gravity field which are suspected to be as a result of minerals. The measured total magnetic..........
Keywords- Gravity, Anomalies, Migori Greenstone belt, Continuation, geochemical analysis
. Geosoft (Oasis Montaj) program, Geosoft mapping and Application system. Inc. Suit 500, Richmond St. West Toronto, ON Canada N5S1V6. User's Manual 2007.
. Ichangi D.W. (1993).Lithostratigraphic setting of mineralization in the Migori segment of the Nyanza Greenstone Belt, Kenya.In: Proceedings of the fifth conference of the geology of Kenya.Nairobi, Kenya.
. Kearey P., Michael B., Ian H. (2002). An Introduction to Geophysical Exploration. 3rd edition. London: Blackwell Scientific publications.
. Odek A., Githiri J.G., K'Orowe M., Ambusso W. (2018). Power spectral analysis and edge detection of magnetic data of migori greenstone belt, Kenya. International organization of scientific research. IOSR Journal of applied geology and geophysics, vol. 6, Issue 4.
. Shackleton R.M. (1946). Geology of Migori Gold belt and adjoining areas. Geological survey of Kenya, Mining and Geological Department Kenya, Rept. 10: 60...
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Abstract: The potential field data of southwestern Sinai had been closely analyzed to delineate the regional subsurface structure and tectonic framework. For that, several qualitative and quantitative interpretational techniques were applied on both gravity and magnetic data including; regional-residual separation, second vertical derivative, trend analysis, depth estimation, and Euler deconvolution. The filtered maps show that the uplifted basement is closely associated with strong gravity and magnetic anomalies, while negative anomalies are correlated with deeper sources or the basins. The statistical trend analyses indicate that the NW-SE (Suez) trend plays the most significant.........
Keywords- Basement tectonic Map, El-Qaa Plain, Euler Deconvolution, Second Vertical Derivative, Sinai, Trend analysis.
. Cochran, J. R. And Karner, G. D., 2007: Constraints on the deformation and rupturing of continental lithosphere of the Red Sea: the transition from rifting to drifting. Geol. Soc. London Spec. Publ. Vol. 282, PP. 265-289.
. Massoud, U., Santos, F., El-Qady, G., Atya, M. And Soliman, M., 2010: Identification of the shallow subsurface succession and investigation of the seawater invasion to the Quaternary aquifer at the northern part of El-Qaa Plain, Southern Sinai, Egypt by transient electromagnetic data. Geophys. Prospect. Vol. 58, PP. 267-277.
. Bunter, M. A. G., 1982: Surface and subsurface geology of El-Qaa basin, Southern Sinai, A. R. E., 6th E. G. P. C. Exploration seminar, Cairo, A. R. E. Cairo, PP. 437-452.
. Moustafa, A.R., 2002: Controls on the geometry of transfer zones in the Suez rift and northwest Red Sea: implications for the structural geometry of rift systems. AAPG Bulletin Vol. 86, No. 6, PP 979–1002.
. GeneralPetroleum Company, G.P.C., 1985: Gravity map of Egypt, the Egyptian Academy of Scientific Research and Technology, Cairo.
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|Paper Type||:||Research Paper|
|Title||:||Evaluation of Gas Reservoir using Wireline Log Interpretation: Assam-Arakan Basin, India.|
|Authors||:||Dabo Mahmud Mohammed || Saleem Isa Mohammed|
Abstract: The study was embodied with quantitative analysis of petro-physical parameters for evaluation of Gas Reservoir using wire line Log Interpretation Assam-Arakan Basin, India, eleven permeable zone were identified in the study well, among these four zones were gas-bearing and the rest, were water-bearing zones. Relatively high resistivity, very low neutron logs and low-density log responses indicate hydrocarbon type is gas-bearing zone because of the large cross over effect than the water-bearing zone. The shale volume of these zones ranged from 4%-14% indicating a shaly sand dominating lithology and less affect the water saturation values in the gas reservoir. Average porosity of these zone ranged from 32%-37% which is within the limit for good hydrocarbon accumulation, water saturation............
Keywords: Petro physical Parameters, Gas reservoir evaluation, Wire line logs, interpretation..
. B. Asquith and C. R. Gibson. Basic Well log Analysis for Geologist; 2nd ed. TextbookAAPG, Tulsa, Okalhoma, USA. 1982.
. S. Sakura. "Petrophysical evaluation of Miocene-Pliocene gas reservoir: Veracruz and Macuspana Basin," Mexico. SPWLA 43rd Annual Logging Symp, 1-13, 2002.
. M.M. Rahman, A. S. M. Woobaidullah, B. Imam and M. M. Rahman. "Evaluation of Reservoir Sands of Titas-15 Well by Wireline log interpretation; Bangladesh Geoscience Journal, v.15, p.67-75, 2009
. S. Pahari, H. Singh, I .V. S. V. Prasad and R. R. Singh. "Petroleum System of Upper Assam Shelf, India", Geohorizons, India pp14-21, 2008.
. A. Bhardwaj, N. B., Ishwar "Petrophysical Well Log Analysis for Hydrocarbon Exploration In part of Assam Arakan Basin, India", 10th Biennial International Conference And Exposition, SPG Kochias p153, 2013
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Abstract: The study is aimed at assessing the water quality index (WQI) for groundwater in Gombe and Environs. WQI, a technique of ratingwater quality, is an effective tool to assess spatial and temporal changes in groundwater quality. This has been determined by collecting 50 groundwater samples from bore holes and hand dug wells and subjecting the samples to comprehensive physicochemical analysis. The following 15 parameters were considered for calculating WQI: Sodium, potassium, calcium, magnesium, chloride, bicarbonate, Sulphate, nitrate, iron, pH, Total Hardness, Conductivity, fluoride, and phosphate. The values of WQI of the samples were found in the range of 38.5 to 67.52. The majority of groundwater samples fall in good category (66%) others fall in excellent category (44%) indicating groundwater is fit for drinking purposes..
Key Words: water quality index, groundwater, physicochemical analysis and parameters
. ABDULRAHMAN A., AHMAD D. S., AND MUHAMMAD A. U. (2017), Evaluation of soil corrosivity and aquifer protective capacity using secondary geoelectric parameters across Gombe metropolis in North-eastern Nigeria.Agriculture Business and Technology journal. Vol. 15, pp 29-51
. ALLIX, P., GROSDIDIER, E., JARDINÉ, S., LEGOUX, O., AND POPOFF, M., (1981).
Découverted'AptiensupérieuraAlbianinférieurdaté par microfossilesdans la sériedétritiquecretacée du fossé de la Bénoué (Nigéria). CentresRecherches Acad. Sci., (Paris)
. CARTER A.D, PALMER R.C, and MONKHOUSE R.A (1987). Mapping the vulnerability of groundwater to pollution from agricultural practice, particularly with respect to nitrate in Vulnerability of Soil and Groundwater to pollutants (ed. van Duijvenbooden W, Waegeningh HG). TNO Committee on Hydrological Research. The Hague, Proceedings and Imformation, Vol. 38: pp. 333-342.
. FETTER, C.W., (1990). Applied hydrogeology. CBS Publishers and Distributors, New Delhi, India, p567
. HORTEN, R.K. (1965). An Index number for rating water quality. J. Water Poll. Cont. Fed. 37(3): 300-306.
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|Paper Type||:||Research Paper|
|Title||:||Morphometric Analysis of Auranga River Basin: A GIS-based Approach|
|Authors||:||Ramesh H. Gavit || B. B. Sonule|
Abstract: Auranga River is a west flowing small river with an area of 800 sq.km. Auranga basin lies between Ambika river in the north and Par river in the south. It has six smaller basin i.e. Tan, Man Nirpan, Lower Tan, Lower Auragna and Vanki Nadi In the present investigation author attempted physiographical setup, linear and areal morphometric parameters such as steam order, stream length, bifurcation ratio and drainage density. Most of the drainage pattern identified are radical and dendric. The stream order of the basin is mainly controlled by physiographic and lithological conditions of the area. The study area is designated as seventh order basin with the drainage density value being as 3.31 km/km 2. The increase in stream length ratio from lower to higher order shows that the study area has reached a mature geomorphic stage..
Key Words: Drainage morphometry, Aurang basin, GIS
. Horton R E(1945) Erosional development of streams and their drainage basins. Hydrophysical approach to quantitative morphology. Geographical Society of American Bulletin 56: 275-370.
. Strahler A N (1957) Quantitative analysis of watershed geomorphology. American Geographical Union Transcations 38:912-920.
. Gangalakunta P, Amar K, Kothiram S (2004) Drainage morphometry and its influence on landform characteristics in a basaltic terrain. Central India- a remote sensing and GIS approach. Int J Appl Earth and Geoinformatic 6:1-16.
. Sheikh A, Pal A, Pandit A K, (2010) Water quality of vishav stream in Kashmir valley, J and K, India. Recent Research in Ecience and Technology 2:54-59.
. Strahler AN, Chow VT (1964) Quantitative geomorphology of drainage basins and channel network, In Handbook of Applied Hydrology. McGraw Hill Book Company, New York, USA.
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Abstract: The Kasturigattu (K) – Gudarukoppu (G) area (i) is intensely sheared, (ii) forms a part of the Crystalline Complex (CC) close to the SE margin of the Cuddapah Basin (CB) in Andhra Pradesh, India, and (iii) lies in between the sedimentary rocks of the Nallamalai Group of the Mesoproterozoic CB to its west and the schistose rocks of the Archaean Nellore Schist Belt (NSB) to its east. Petrography-wise, CC consists of (a) basement biotite granitoid; (b) schists (with major mineralogy of quartz, feldspars, biotite, chlorite, epidote, sericite and sphene); and (c) gradational, deformed-metamorphic-metasomatic variants of (a) and (b), comprising schistose/gneissose granite and cataclasite/mylonite/phyllonite, besides (d) intrusive basic rocks of epidiorite, metadolerite and orthoamphibolite . Of these, quartz-feldspar-biotite schist around Kasturigattu and quartz-apatite cataclasite/mylonite and apatite.........
Key Words: Petrology, geochemistry, granitoids and their variants, U-mineralisation, Kasturigattu – Gudarukoppu area, Andhra Pradesh, India.
. Bidwai, R. and Madhusudan Rao (1988) Radiometric survey in the basement granitoid along the southwestern margin of the Cuddapah basin. Ann. Rep. for the Field Season, 1987-88, Southern Region, AMD, Bangalore (Unpublished).
. Dhana Raju, R. (2009) Cuddapah basin: India's emerging Uranium-Hub. J. Ind. Assoc. Sedimentologists, 28 (2), pp. 15-24.
. Dhana Raju, R.(2009a) Handbook of Geochemistry: Techniques and Applications in Mineral Exploration. Geol. Soc. India, Bangalore, India, 520 p.
. Dhana Raju, R (2009b) Handbook of Mineral Exploration and Ore Petrology: Techniques and Applications. Geol. Soc. India, Bangalore, India, 494 p.
. Dhana Raju, R., Lakshminarayana, Y. and Sudhakar, Ch. (2018) Uranium mineralisation around Mulapalle, SW of Lakkireddipalle, Kadapa district, Andhra Pradesh, Inida and Laboratory-Scale Processing of its Uranium Ore. IOSR-Jour. Applied Geol. Geophysics (IOSR- JAGG, online journal), 6 (5), pp. 86-95..
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Abstract: Chances of ending up with a dry well are high when drilling for ground water before carrying out correct and accurate preliminary processes. In this research, the main aim was to delineate ground water potential zones within Kilango Matuu –Machakos County, Kenya. In order to achieve this objective, a proper understanding of the subsurface formation and faults/fractures, which are the main ground water conduit, was inevitable. Ground physical observation method in siting boreholes has proven to be insufficient due to the many times that drillers have drilled a well that dried up within a short period. In order to avoid all these setbacks, Gravity survey was carried out over............
Key Words: Aquifer, Bouguer Anomaly, Fault, Gravity, Groundwater
 Survey of Kenya, (2005). Topographical map of Matuu area. Report Survey of Kenya 150/1. The government Printer, Nairobi.
 B. Baker, Geology of the Southern Machakos area, Geological Survey report Kenya, (27),1954 , 13.
 C. Nyamai, E. Mathu,N. Opiyo and E.Wallbrecher, A Reappraisal of the Geology, geochemistry, structures and tectonics of the Mozambique belt in Kenya, East of the Rift system. African Journal of Science and Technology Science and Engineering Series, 4(2),2003, 51-71.
 R. Ndeto,Water projects in Yatta District.. Tanathi Water Services Board, Kithimani, Kenya. Projects brief reports ,2011,WD/YAT/1/4/21.
 B.Singhal and R.Gupta, Applied hydrogeology of fractured rocks. Springer Science & Business Media, 2010..