干旱区生态环境知识资源中心(Arid): Aeromagnetic and electrical resistivity mapping for groundwater development around Ilesha schist belt, southwestern Nigeria

Arid

DOI	10.1007/s13202-021-01307-x
	Aeromagnetic and electrical resistivity mapping for groundwater development around Ilesha schist belt, southwestern Nigeria
	Okpoli, Cyril Chibueze; Akinbulejo, Blessing Omobolanle
通讯作者	Okpoli, CC (corresponding author), Adekunle Ajasin Univ, Dept Earth Sci, Akungba Akoko, Nigeria.
来源期刊	JOURNAL OF PETROLEUM EXPLORATION AND PRODUCTION TECHNOLOGY
ISSN	2190-0558
EISSN	2190-0566
出版年	2022
英文摘要	Aeromagnetic and vertical electrical sounding around Ijano, southwestern Nigeria, was investigated for groundwater potential. Aeromagnetic dataset and vertical electrical sounding were acquired and used to investigate the study area. Oasis Montaj, Microsoft Excel and Arc GIS were used to present the results in maps, images and profiles. In order to map out the geological structures of the study area, magnetic image enhancing filters applied to the total magnetic intensity using Geosoft (Oasis Montaj) are reduction to equator, vertical derivative, total horizontal derivative and upward continuation. These filters helped define the lithological boundaries, geological structures, faults, folds and contacts. The lineament of aeromagnetic map was generated from derived field intensity gradients and solutions of Euler deconvolution carried out on the aeromagnetic data using structural index of 0.5 and 1. The processed image shows the lineaments trends majorly towards NE-SW directions. From these combined results of the study area, consistent aeromagnetic lineament map was generated showing the probable positions and trends of the suspected fractured/faulted zone as well as other basement structures. Hydro-lineament density maps based on lineament were produced from the generalized structure trends in the area. The result from the depth sounding data interpretation indicates three curve types which are H, HA and KH, where curve type H has the highest occurrence. The results from the vertical electrical sounding data revealed that the areas with the highest hydro-lineament density are good for groundwater prospect and development. The study has led to the delineation of areas where groundwater occurrences are most promising for sustainable supply, suggesting that an area with high concentrations of lineament density has a high tendency for groundwater prospecting. The results from the study show that the aeromagnetic technique is capable of extracting lineament trends in an inaccessible tropical forest.
英文关键词	GIS Geological structures Curve types Hydro-lineament density Groundwater prospect
类型	Article
语种	英语
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:000701281300002
WOS关键词	MAGNETIC INTERPRETATION ; ANALYTIC SIGNAL
WOS类目	Energy & Fuels ; Engineering, Petroleum ; Geosciences, Multidisciplinary
WOS研究方向	Energy & Fuels ; Engineering ; Geology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/363983
作者单位	[Okpoli, Cyril Chibueze; Akinbulejo, Blessing Omobolanle] Adekunle Ajasin Univ, Dept Earth Sci, Akungba Akoko, Nigeria
推荐引用方式 GB/T 7714	Okpoli, Cyril Chibueze,Akinbulejo, Blessing Omobolanle. Aeromagnetic and electrical resistivity mapping for groundwater development around Ilesha schist belt, southwestern Nigeria[J],2022.
APA	Okpoli, Cyril Chibueze,&Akinbulejo, Blessing Omobolanle.(2022).Aeromagnetic and electrical resistivity mapping for groundwater development around Ilesha schist belt, southwestern Nigeria.JOURNAL OF PETROLEUM EXPLORATION AND PRODUCTION TECHNOLOGY.
MLA	Okpoli, Cyril Chibueze,et al."Aeromagnetic and electrical resistivity mapping for groundwater development around Ilesha schist belt, southwestern Nigeria".JOURNAL OF PETROLEUM EXPLORATION AND PRODUCTION TECHNOLOGY (2022).