IOSR Journal of Applied Geology and Geophysics最新文献

{"title":"Implications of Seasonal Variation on Groundwater Quality in Yenagoa, Niger Delta, Nigeria","authors":"O. Oki, R. Ombu","doi":"10.9790/0990-0503016066","DOIUrl":"https://doi.org/10.9790/0990-0503016066","url":null,"abstract":"","PeriodicalId":111900,"journal":{"name":"IOSR Journal of Applied Geology and Geophysics","volume":"270 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116155328","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Homogeneity Analysis of Precipitation Series in North Iraq","authors":"O. Agha, S. Bagcaci, N. Şarlak","doi":"10.9790/0990-0503025763","DOIUrl":"https://doi.org/10.9790/0990-0503025763","url":null,"abstract":"Reliability and quality of historical precipitation data are subjected to keen evaluation before a study in water resources, hydrological processes, and climate change fields. In this context, homogeneity tests emerge as a useful tool to control the data reliability and quality. In this study, the homogeneity of the annual and seasonal precipitation data throughout the north of Iraq was investigated using the Pettit, Standard Normal Homogeneity (SNH), Buishand (BR), and Von Neumann (VNR) tests at a significance level of 0.05. Long-term precipitation records taken from nine meteorological stations, were analyzed by each of the four homogeneity tests. Based on annual data, the results of the SNHT test indicated the four stations as inhomogeneous. Moreover, Pettit test exhibited inhomogeneous results for Mosul and Derbandghan stations. The spring precipitation data for all stations were classified as useful except for the Dokan station which was classified as doubtful for the spring precipitation data. As a result, it was concluded that 2, 3, and 1 out of 9 stations were assessed as doubtful for annual, winter, and spring precipitation data, respectively.","PeriodicalId":111900,"journal":{"name":"IOSR Journal of Applied Geology and Geophysics","volume":"97 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131617811","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Plasma Physics approach for the Interaction of Electromagnetic Wave with Ionosphere","authors":"A. Hassani, Halla Hameed Ali","doi":"10.9790/0990-0503021728","DOIUrl":"https://doi.org/10.9790/0990-0503021728","url":null,"abstract":"Abstract : The concept of ionospheric modifications is a part of a much more common class of research today known as \"Active Experiments\" in auroral plasma. The interaction of High power electromagnetic Radio waves with auroral plasma is one of that field which has been have been investigated by this study. Plasma in that auroral region might be illuminated via electromagnetic waves for a prolonged period and therefore, undergo accumulative resonances and perturbations due to its slow transport rates, weak convection and long lifetime of plasma, mainly nearby the peak of profile of ionospheric electron density. A plasma can be resonance at a particular height in the ionosphere includes a equivalent electromagnetic wave frequency. These types of plasma resonances are able to improve the local fields of electromagnetic, and as a result their interactions with plasma particles causing density perturbations, turbulences, field aligned striations and local heating. These kinds of effects will be more obvious when the electromagnetic wave frequency is close to foF2, the resonance frequency nearby the peak of the profile of ionospheric electron density. Optical emissions may also be enhanced during such conditions. This work aim to investigate the interaction of EM with ionosphere layers D, E and F. The simulation model run under COMSOL Multiphasic software. The EM selected to be at 10MHz and 2.4GH, the electron density has been taken to be (10 8 , 10 10 and 10 11 ) for D, E, F ionospheric layers respectively. The simulation results have been recorded and analyzed for: electron temperature of plasma, electron density of plasma, electric potential of plasms, resistive losses, electric field norm and the relation between the input port power and the time. The results provide a clear and important information about interaction of EM with ionosphere that can help to predicate there transmission and its range for many purpose.","PeriodicalId":111900,"journal":{"name":"IOSR Journal of Applied Geology and Geophysics","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130668101","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A Survey of the Relationship between the Use of Mobile Internet Times and the Healthy Lifestyle of College Students","authors":"Zhihui Zhua","doi":"10.9790/0990-0503024142","DOIUrl":"https://doi.org/10.9790/0990-0503024142","url":null,"abstract":"2014 mobile terminal replace the computer to become the network's largest terminal, China fully access to the mobile Internet era. The Internet usage of college students in the mobile Internet era and its impact on healthy lifestyles are the urgent content for social and university workers to understand. In this paper, through the questionnaire survey, spss software correlation analysis, to understand the mobile Internet era of college students use the relationship between college students and healthy lifestyles.","PeriodicalId":111900,"journal":{"name":"IOSR Journal of Applied Geology and Geophysics","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131479983","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Ground Magnetic Investigation of Iron Occurrence in the Basement Rocks ofDadoru and Environs, Adamawa Massif, North East Nigeria","authors":"A. Yusuf, B. N.E, J. Barka, Y. Yero.U.","doi":"10.9790/0990-0503022940","DOIUrl":"https://doi.org/10.9790/0990-0503022940","url":null,"abstract":"The study area is located in the northwestern part of the Adamawa massif of northeastern Nigeria and lies between longitude 11 0 50 / E and 12 0 00 / E and latitude 8 0 49 / N and 8 0 55 / N. Lithologies of the area include: granite-gneisses, porphyritic granites, and biotite hornblende gneiss. A G-856 Memory-Mag TM proton precision magnetometer was used to acquire ground magnetic data of the area following a regular grid pattern. The magnetic data were subjected to diurnal correction and contoured using Surfer 11surface mapping software to produce a magnetic map. Areas characterized by anomalous magnetic values (34342 -34348 nT) are interpreted as areas of iron occurrences. The computer software WingLink was been used to generate 2-D subsurface geologic models for the computation of the depths to the anomalous bodies. The average depth to the source of anomalous bodies is 351.67 m, which is interpreted as average depth to iron mineral occurrence. Ground geologic mapping confirmed areas of surface iron occurrences as veins in granite gneiss. Geological investigation of the discovery is suggested to determine the tenor and tonnage for possible economic exploitation as part of Nigeria’s government plan to revitalize the solid mineral/mining industry.","PeriodicalId":111900,"journal":{"name":"IOSR Journal of Applied Geology and Geophysics","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131175920","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Intergrated Use of Geo-Electric Resistivity Sounding and Hydrogeologic Investigations for Groundwater Resource Development around Obu-Okpella South-Western Nigeria.","authors":"C. Longpia, P. D. Dakwo, J. A. Ramadan, J. O. Ikeh, C. J. Offodile","doi":"10.9790/0990-0503024856","DOIUrl":"https://doi.org/10.9790/0990-0503024856","url":null,"abstract":"","PeriodicalId":111900,"journal":{"name":"IOSR Journal of Applied Geology and Geophysics","volume":"198 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114154373","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Study on Prediction Method of Fluvial Facies Sandbody in Fluvial Shallow Water Delta","authors":"Wang Lu","doi":"10.9790/0990-0503024347","DOIUrl":"https://doi.org/10.9790/0990-0503024347","url":null,"abstract":"Shallow lake basin fluvial-dominated delta front subfacies’s sandbody are widely distributed, and the thin sand body, small scale and diversification as the main features, and they are quite different from delta front in the classic delta sedimentary model developed large-scale and thick estuary sand dam sedimentary. At present, most of them in the development of the oil producing degree is poor, is the main target area in Eastern old oil reservoir, fine anatomy and in-depth understanding of shallow lacustrine fluvial-dominated delta front subfacies’s single sandbody formation, distribution characteristics and sedimentary model is particularly urgent. Taking Yong 56-96 block in the southern part of Song Fangtun oil field as an example, this paper analyzed and compared several prediction methods of sand bodies, and made joint prediction of seismic and seismic reservoirs in the study area, thus effectively identified thin channel sand bodies and sheeted sand bodies.","PeriodicalId":111900,"journal":{"name":"IOSR Journal of Applied Geology and Geophysics","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130038494","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Quality Assessment of Coal Deposits around Molko Area, Gombe, NE Nigeria.","authors":"A. Abdulkadir, U. A. Usman, J. M. El-Nafaty, M. Kodomi","doi":"10.9790/0990-050301101110","DOIUrl":"https://doi.org/10.9790/0990-050301101110","url":null,"abstract":"This study present detailed chemical compositional characteristic of coal deposits for quality assessment. The study area falls within the Gongola basin, North-eastern Nigeria. Seven core coal samples were collected from three boreholes of approximately 25 meters depth each in Molko area around Mallam Sidi in Gombe state, North-eastern Nigeria. Assessment of coal quality based on proximate (volatile matter, fixed carbon, ash, moisture), ultimate (H, N, O, S) analyses of the Molko coals was carried out. International Standard Organisation (ISO) standards were followed for proximate and ultimate analyses. X-Ray fluorescence were used for the major and minor elements analysis.The results of proximate analysis of coal average value of Air Moisture 0.04%, Inherent Moisture 4.18%, Total Moisture 4.23%, Ash content 31.37%, Volatile matter 40.69%, Fixed carbon 23.71% and Gross calorific value 19005j/g. The study revealed that the Molko coal show an appreciable property of coking quality and thus can be employed in the generation of substantial heat for the working of blast furnace.","PeriodicalId":111900,"journal":{"name":"IOSR Journal of Applied Geology and Geophysics","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133779527","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Basement and Automatic Depth to Magnetic Source Interpretation of Parts of Southern Benue Trough and Anambra Basin.","authors":"M. Eze, A. Amoke, O. C. Dinneya, P. C. Aguzie","doi":"10.9790/0990-0503016774","DOIUrl":"https://doi.org/10.9790/0990-0503016774","url":null,"abstract":"Aeromagnetic data of sheet 288 and 289 (Igumale and Ejekwe sheet) have been evaluated in order to delineate the magnetic sources and estimate the depths to basement (sedimentary thickness) in the area. SPI technique and analytical signal were used to estimate the magnetic source locations. Visual study of the analytical map shows the presence of igneous intrusions in some part of the area. The output from SPI method and analytical signal are images from which the depths were determined. Maps of the upward continuation emphasized long wavelength basement anomalies. Analytical signal filter revealed nearsurface anomalies whose magnitudes range between 0.00009m and 3.72295m. While result from Source parameter Imaging show deep source anomalies of 52.58m minimum depth and a maximum depth of 11848.84m.","PeriodicalId":111900,"journal":{"name":"IOSR Journal of Applied Geology and Geophysics","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114944130","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Problems in Accepting Plate Tectonics and Subduction as a Mechanism of Himalaya Evolution.","authors":"Z. Khan, R. Tewari, Rabindra Nath Hota","doi":"10.9790/0990-05030181100","DOIUrl":"https://doi.org/10.9790/0990-05030181100","url":null,"abstract":"The available geological and structural data from Chaman fault and Indus-Tsangpo regions does not support the new global tectonic concept and the presence of suture zone between Indian and the northern landmass. Instead, it is suggested that the Indus-Tsangpo is a rift valley that appeared in the Triassic and became dormant in the Cretaceous, after a spurt of volcanic activity long before the supposed suturing in the Eocene. The paleontological evidences based on plants, marine and fresh-water invertebrates, insects and vertebrates indicate that Gondwanaland was never a separate entity. Paleoclimatic continuity was maintained over this landmass of India and Tibet from the Paleozoic through Cenozoic eras up to the Pleistocene Epoch. Similarly, the widespread glacial deposits of northern Tibet bespeak of a continental landmass extending from Peninsular India up to northern Tibet, and may be beyond. Thus, Pangaea existed till its breakup beginning in the Triassic and Tethys was an epicontinental sea from west Proto-Pacific to east Proto-Pacific. At no stage was it oceanic in character, although narrow shifting belts along and across it, became rift or geosynclines in the process of crustal development. Thus, the Tethys did not form a wide, funnel shaped gulf, opening into the Pacific as depicted in many reconstructions. On the other hand, the Himalayan sequence is dominantly nongeosynclinals sediments, and therefore, genetically different from such classic mountains as the Caledonian, Hercynian, Urals, and Aravallis etc. It is significant that the Himalayan orogeny was initiated in the Cretaceous, and the major episode was Eocene, i.e. earlier than the supposed collision, rules neither out continental collision and subduction nor even in geosynclines. However, the Himalayas, could, then, not have been borne due to collision of landmasses as suggested by plate-tectonics. Instead, they are an interplatform type of mountain range formed by vertical uplift, by intrusive magmas and gravity gliding played an important part too. Terrestrial gravity, seismic (including DSS), geodetic, geomorphologic and field tectonic studies independently and collectively support the above contention. The Himalaya along with some other ranges in Central Asia may be unique in Earth history, and all the mountain ranges of the past seem apparently to have been originated in geosynclines. The plate tectonic concept, however, considers the term geosynclines redundant.","PeriodicalId":111900,"journal":{"name":"IOSR Journal of Applied Geology and Geophysics","volume":"05 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129074943","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}