Series-1 (May – June 2025) May – June 2025 Issue Statistics
- Citation
- Abstract
- Reference
- Full PDF
- Index Page
- Cover Paper
| Paper Type | : | Research Paper |
| Title | : | Altimetric Effect Of RTM Associated With UNB_Topodens In The State Of Rio Grande Do Sul (Brazil) |
| Country | : | Brazil |
| Authors | : | Roosevelt De Lara Santos Jr |
 |
: | 10.9790/0990-1303010107  |
Abstract: The residual effect of topographic modeling (RTM) was calculated for the continental region of the Rio Grande do Sul state, using 3,510 points from a 5'x5' spherical arc grid, based on the ETOPO1 global relief model, in association with lateral density models UNB_TopoDens (global) and Harkness (average global density: 2670 kg/m³). The mathematical model employed was Newton’s equation for a point mass.For each of the 3,510 RTM points, a neighborhood of points within a 210 km radius was considered. The RTM values calculated for the two different density models exceeded 2 mm, emphasizing the importance of RTM consideration in high-precision altimetric studies.
Keywords: RTM; Newton’s integral; Lateral density; Global model; Physical heights.
[1].
Harkness, W. Solar Parallax And Its Related Constants, Including The Figure And Density Of The Earth. Government Printing Office, 1891.
[2].
Heck, B.; Seitz. K. A Comparison Of The Tesseroid, Prism And Point-Mass Approaches For Mass Reductions In Gravity Field Modelling. Journal Of Geodesy, V.81, 121–136, 2007. Https://Doi.Org/10.1007/S00190-006-0094-0
[3].
Heiskanen, W.A., Moritz, H. Physical Geodesy. San Francisco, Usa: Ed. Freeman, 1967. 364p. Https://Doi.Org/10.1007/978-3-211-33545-1
[4].
Molodenskii, M.S.; Eremeev, V.F.; Yurkina, M.I. Methods For Study Of The External Gravitational Field And Figure Of The Earth. Jerusalem, Israel: Israeli Programme For The Translation Of Scientific Publications, 1962. 264p.
[5].
Moritz, H. Advanced Physical Geodesy. Karlshure, Germany: Ed. Wichmann, 1980. 500p.
- Citation
- Abstract
- Reference
- Full PDF
| Paper Type | : | Research Paper |
| Title | : | DC Resistivity Survey Of Groundwater Prospecting In Agbura, Bayelsa, Niger Delta, Using Schlumberger Electrode Configuration |
| Country | : | Nigeria |
| Authors | : | Ede, Tiekuro || Yabefa, B. E || Emegha, J. O. |
|
: | 10.9790/0990-1303010813 |
Abstract: Vertical electrical resistivity survey was carried out at Agbura in Bayelsa State to investigate the groundwater potential of the area. ABEM Terrameter SAS-1000 was used, employing Schlumberger Electrode Configuration. Maximum half-current electrode spread AB/2 of 1 m to 133 m was used while the potential electrodes separation MN/2 was maintained between 0.25 m to 5.00 m. The VES curve was quantitatively interpreted by computer iteration techniques using IP2Win computer software. The result of the interpreted geo-electric survey delineated a cross-section of six geo-electric units before the seventh infinite layer goes to infinity hence its geo-electric parameters are considered artefacts.......
Keywords: Resistivity, Aquifer, Geo-electric, Groundwater, Schlumberger
[1]. De Clercq T, Jardani A, Fischer P, Thanberger L, Vu TM, Pitaval D, Côme J-M, Begassat P. The Use Of Electrical Resistivity Tomograms As A Parameterization For The Hydraulic Characterization Of A Contaminated Aquifer. J Hydrol 587:124986. Https:// Doi. Org/ 10. 1016/J. Jhydr Ol. 2020. 124986
[2]. Doust, H., & Omatsola, E. (1989) Niger Delta. American Association Of Petroleum Geologist Bulletin. 1989; 48:201–238
[3]. Ghosh DI . The Application Of Linear Filter Theory To The Direct Interpretation Of Geoelectrical Resistivity Sounding Measurements. Geophys Prospect. 1971; 19:192–217
[4]. Greggio N, Giambastiani BMS, Balugani E, Amaini C, Antonellini M. High-Resolution Electrical Resistivity Tomography (ERT) To Characterize The Spatial Extension Of Freshwater Lenses In A Salinized Coastal Aquifer Water. 2018; 10(8):1067. Https:// Doi. Org/ 10. 3390/ W1008 1067
[5] Griffith DH, Rooney WJ. Two-Dimensional Resistivity Imaging And Modeling In Areas Of Complex Geology. J Appl Geophys. 1993; 29: 211–226
- Citation
- Abstract
- Reference
- Full PDF
| Paper Type | : | Research Paper |
| Title | : | Impact Of Contaminants In Marine Sediment Assemblages In El-Hamrawein Harbour, Red Sea Coast, Egypt |
| Country | : | Egypt |
| Authors | : | Raafat M. El Attar || Bakheit B. Assran |
|
: | 10.9790/0990-1303011424 |
Abstract: Thirty-four sediment samples were gathered from El-Hamrawein Harbour area. The investigating area sediments are composed of 84.86% sand fraction. The gravel fraction ranged from 0.00 to 46.54% and averaged 6.71%. Mud fraction varied from 0.00 to 32.39% and averaged 8.44%. The majority of samples were gathered from deep depths of the area contain a significant amount of mud fraction. This is a result of landfilling and dredging in the harbour area, additional to phosphate ore shipment activities. The carbonate content ranged.......
Keywords: Sediments, Geochemical, El-Hamrawein Harbour, Red Sea, Egypt
[1].
Mcmurtry G. M., Wiltshire J. C., And Kauahikaua J. P., 1995. Heavy Metal Anomalis In Coastal Sediments Of O'ahu, Hawai'i. Pacif. Sci., 49, 452-470..
[2].
Folk R. L., And Ward W. C., 1957. Brazos River Bar: A Study In The Significance Of Grain Size. Jour. Sed. Petrol., 27(1), 3-26.
[3].
Chester R., Lin F., And Basaham A., 1994. Trace Metals Solid-State Speciation Changes Associated With The Down-Column Fluxes Of Oceanic Particulates. Journal Of The Geological Society, 151, 351-360.
[4].
Brenner M., And Binford M. W., 1988. Relationships Between Concentrations Of Sedimentary Variables And Trophic State In Florida Lakes. Can. J. Fish. Aquat. Sci., 45, 294-300.
[5].
Norman S. Nelson, 1987. An Acid-Persulfate Digestion Procedure For Determination Of Phosphorous In Sediments. Communications In Soil Science And Plant Analysis, 18, 359-369
- Citation
- Abstract
- Reference
- Full PDF
| Paper Type | : | Research Paper |
| Title | : | Geotechnical Investigation of Sub-Soil for Disaster Risk Reduction of Building Collapse at Ovade-Ogharefe, South-South Nigeria |
| Country | : | Nigeria |
| Authors | : | Irunkwor, T. C || Nmorsi, D. D || Okobia, C || Atalor, B || Abanjo, N || Molua, C. O || Ngerebara, O.D |
|
: | 10.9790/0990-1303012550 |
Abstract: Geotechnical investigation of sub-soil for disaster risk reduction and its use as support for foundation of civil infrastructures and gas processing plant to prevent building collapse at Ovade-Ogharefe was carried out to determine the safe bearing capacity of the soil materials and to recommend suitable foundation design options. Twelve soil samples were collected from 6 boring locations using the Shell-and-Auger Percussion Rig to depth of 20m where undisturbed and disturbed samples were taken at regular intervals of 1.50m. Two soil zones of Brownish Lateritic Clayey-Sand and Grayish well-graded Sands and Gravels were identified. Results of the Atterberg limit of clay samples.......
Keywords: Allowable Bearing Capacity, Building Collapse, Disaster Risk Management, Foundation Design Option, Geotechnical Investigation, Standard Penetration Test
[1]
Ching, F. D. K. (2014). Building Construction Illustrated. John Wiley And Sons.
[2]
International Code Council (ICC). (2018). 2018 International Code Council Performance Code For Buildings And Facilities. Retrieved Online From Https://Www.Scribd.Com. (Accessed: 2nd October, 2024).
[3]
Staff W. L. (2020). Hazards: Infrastructure Failure-Building Collapse In Hard Rock Hotel, Https://Ready.Nola.Gov/Hazard-Mitigation/...(Accessed 10 November 2024).
[4]
News Agency Of Nigeria (2024). Nigeria Records 22 Building Collapses, 33 Deaths In 7 Months-COREN. Business Day, 18 July 2024, Retrieved Online From Https://Businessday.Ng/News/Article/Ni...(Accessed 10 November, 2024)
[5]
Ogundeji J. (2023). 553 Buildings Collapsed In 49 Years-BCPG. Punch, 13 August 2023, Retrieved Online From
Https://Punchng.Com. (Accessed 10 August, 2024)..
- Citation
- Abstract
- Reference
- Full PDF
| Paper Type | : | Research Paper |
| Title | : | Trend Surface Mapping of Principal Component Factor Scores to Assess the Geothermal Geochemistry of India's Peninsular and Extra-Peninsular Hot Springs |
| Country | : | India |
| Authors | : | Amitabha Roy || Sk Mafizul Haque |
|
: | 10.9790/0990-1303015162 |
Abstract: This research paper presents a comprehensive analysis of the geothermal geochemistry of hot springs in India, focusing on two distinct regions: the tectonically active Extra-Peninsular Himalayan region and the relatively stable Late-Precambrian mobile belts of Peninsular India. Utilizing multivariate statistical techniques, particularly Principal Component Analysis (PCA) and Trend Surface Analysis (TSA), the study investigates approximately 340 hot springs by examining their geochemical data. The PCA results identify five significant factors that account.....
Keywords:PCA analysis, Factor scores, Trend surface analysis, geothermal geochemistry, Peninsular and
Extra-Peninsular India
[1]. Amitabha Roy, 2024. The book: Geostatistics applied to fluid geochemistry of geothermal fields in peninsular and extra-peninsular
India. White Falcon Publishing, Chandigarh, India. 2024. Pp. 1-144. ISBN: 979-8-89222-356-0
[2]. A.Roy, 1994. GTHERMIS – An information management and analysis system for geothermal data of India, A Field season report
(1993-94).
[3]. Awang, Z, 2014. Research Methodology And Data Analysis ...
[4]. Jonathan Craig, 2013. The hot springs and the geothermal energy potential of Jammu and Kashmir State Northwest Himalaya,
India.
[5]. Ravi Shankar et al., 1991. Geothermal Atlas of India, GSI Spec Publ..