{"id":10283,"date":"0202-09-07T07:34:27","date_gmt":"0202-09-07T07:34:27","guid":{"rendered":"https:\/\/file.currentschoolnews.com\/?post_type=product&p=10283"},"modified":"2022-09-09T14:33:15","modified_gmt":"2022-09-09T14:33:15","slug":"investigation-of-magnetic-anomalies-of-chibok-and-damboa-areas-in-north-eastern-nigeria","status":"publish","type":"product","link":"https:\/\/pastexamquestions.com\/product\/investigation-of-magnetic-anomalies-of-chibok-and-damboa-areas-in-north-eastern-nigeria\/","title":{"rendered":"Investigation of Magnetic Anomalies of Chibok and Damboa Areas in North Eastern Nigeria"},"content":{"rendered":"

– Investigation of Magnetic Anomalies of Chibok and Damboa Areas in North Eastern Nigeria –<\/strong><\/span><\/p>\n

Download Investigation of Magnetic Anomalies of Chibok and Damboa Areas in North Eastern Nigeria<\/strong><\/span>. Students who are writing their projects can get this material to aid their research work.<\/span><\/span><\/p>\n

Abstract<\/strong><\/h3>\n

The aeromagnetic data of Chibok (sheet 134) and Damboa (sheet 112) areas, southern Chad basin were interpreted qualitatively and quantitatively.<\/p>\n

Spectral Analysis, Source Parameter Imaging (SPI), Standard Euler deconvolution, Forward and Inverse modelling methods were used in the quantitative interpretation with the aim of determining depth to the magnetic source bodies,<\/p>\n

magnetic susceptibilities and the possible mineralization in the area. Oasis Montaj 6.4.2, WinGlink 1.62.08, Surfer 11 and Microsoft Excel software were employed in the data analyses.<\/p>\n

The estimated depths from the forward and inverse modelling methods for profiles 1-7 are 2749, 2201, 2088, 703, 521, 927 and 481 m respectively.<\/p>\n

The respective susceptibility values were 0.20407, 0.47779, 7.8043, 0.1349, 0.0889, 0.3083 and 0.4820 SI, which indicate the presence of sedimentary intrusions (basalt or limestone), few\u00a0 metamorphic\u00a0 rocks (schist) and minerals (magnetite).<\/p>\n

Spectral analysis revealed two depth sources with the\u00a0 deep\u00a0 sources\u00a0 ranging\u00a0 from\u00a0 1485.3\u00a0 4093.6\u00a0 with\u00a0 an\u00a0 average depth value of2390.1 , while the shallow depth sources range from 405 844\u00a0 with an average depth value of 567\u00a0 .<\/p>\n

The temperatures at these\u00a0 depths range from 81.65\u00b0C to 169.16\u00b0C for the deeper sources and from 31.12\u00b0C to 32.82\u00b0C for the shallow sources.<\/p>\n

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Introduction<\/strong><\/h3>\n

1.1 Background of the Study<\/strong><\/p>\n

Geophysics means the physics of the Earth and its environment. Its subjects\u00a0 include\u00a0 the shape of the Earth, its gravitational and magnetic fields, the dynamics of the\u00a0 Earth as\u00a0 a\u00a0 whole and of its component parts, the Earth’s internal structure,\u00a0 composition and\u00a0 tectonics.<\/p>\n

Also, the generation of magmas, volcanism and rock formation, the hydrological cycle including snow and ice, all aspects of the oceans, the atmosphere, ionosphere, magnetosphere and solar-terrestrial relations, and analogous problems associated with the Moon\u00a0 and\u00a0 other planets (Cheminet al.,2006).<\/p>\n

Geophysics is applied to societal needs, such as mineral resources, mitigation of natural hazards and environmental protection (Cheminet al.,2006).<\/p>\n

Geophysical methods may be applied to a wide range of investigation from studies of the entire Earth, to exploration of a localized region of the upper crust.<\/p>\n

Geophysical surveying, although sometimes is prone to major ambiguities or uncertainties of interpretation, provides a relatively rapid and cost- effective means of deriving an information about the subsurface\u00a0 geology\u00a0 (Keary\u00a0 and\u00a0 Brooks, 1984).<\/p>\n

Geophysical survey data are used to analyze potential petroleum\u00a0 reservoirs and mineral deposits, to locate groundwater and archaeological findings, to find the thicknesses of glaciers and soils, and for environmental remediation.<\/p>\n

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