Knowledge Resource Center for Ecological Environment in Arid Area
Structural Analysis of Part of the Nigerian South-western Basement Complex using Aeromagnetic Data | |
Kayode, John S.; Nawawi, Mohd; Abdullah, Khiruddin | |
通讯作者 | Kayode, John S. |
会议名称 | 7th International Conference on Applied Geophysics (Geophysics) |
会议日期 | JAN 14-15, 2016 |
会议地点 | Bangkok, THAILAND |
英文摘要 | Valuable and precious subsurface minerals have been continuously mined illegally in the region of Omu-Aran area in parts of the Nigerian South-western Precambrian Basement Complex. An aeromagnetic data obtained from the Nigerian Geological Survey Agency was analysed to delineate various subsurface geological structures in this area. The subsurface characteristics enrichment of the data was carried out using Fast Fourier Transforms, and the Euler Deconvolution methods that helped in the establishment of the different subsurface magnetic anomalies basement structures emplaced in this part of the Nigerian South-western Precambrian Basement Complex. The study aimed at mapping the main rock types found in the undifferentiated schist that includes some gneiss, schist, quartzite and quartz schist and granite-gneiss in the basement rocks of the area. It also includes delineating, as well as estimating the depths to, the magnetic source of the Ore bodies. Regional-residual separation was applied to the total aeromagnetic data to produce a total magnetic intensity map with the application of Oasis Montaj (2014 software version). Depths to the shallow magnetic anomalies source rock bodies were estimated together with various structural indices that varied between about 0.5SI and 3.0SI at the greatest depth to the shallow anomaly of about 1100m, with the aim of determining the greatest depths approximation for all the subsurface geological structural features in the area. |
英文关键词 | aeromagnetic data magnetic source anomalydepths Precambrian basement complex Nigeria |
来源出版物 | CHIANG MAI JOURNAL OF SCIENCE |
ISSN | 0125-2526 |
出版年 | 2016 |
卷号 | 43 |
期号 | 6 |
页码 | 1324-1334 |
出版者 | CHIANG MAI UNIV |
类型 | Article;Proceedings Paper |
语种 | 英语 |
国家 | Malaysia |
收录类别 | SCI-E ; CPCI-S |
WOS记录号 | WOS:000395907600012 |
WOS关键词 | EULER DECONVOLUTION ; MAGNETIC DATA ; SCHIST BELT ; ANOMALIES ; LINEAMENTS ; SYSTEM ; AREA |
WOS类目 | Multidisciplinary Sciences |
WOS研究方向 | Science & Technology - Other Topics |
资源类型 | 会议论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/305247 |
作者单位 | Univ Sains Malaysia, Sch Phys, Geophys Unit, George Town 11800, Malaysia |
推荐引用方式 GB/T 7714 | Kayode, John S.,Nawawi, Mohd,Abdullah, Khiruddin. Structural Analysis of Part of the Nigerian South-western Basement Complex using Aeromagnetic Data[C]:CHIANG MAI UNIV,2016:1324-1334. |
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