干旱区生态环境知识资源中心(Arid): 3D modelling of subsurface features in parts of the Lower Benue Trough, south-eastern Nigeria, with high resolution aeromagnetic data

Arid

DOI	10.1007/s40808-017-0344-6
	3D modelling of subsurface features in parts of the Lower Benue Trough, south-eastern Nigeria, with high resolution aeromagnetic data
	Anyadiegwu, C. F.; Ijeh, B. I.; Ohaegbuchu, H. E.
通讯作者	Ohaegbuchu, HE
来源期刊	MODELING EARTH SYSTEMS AND ENVIRONMENT
ISSN	2363-6203
EISSN	2363-6211
出版年	2017
卷号	3 期号:3 页码:940-959
英文摘要	Aeromagnetic data over Nsukka, Igumale, Udi, and Nkalagu has been interpreted qualitatively by enhancement processes namely: regional-residual separation, upward continuation, second vertical derivative, second horizontal derivative, and analytical signal with Oasis montaj 8.3 software. Quantitatively the data was analyzed and interpreted by forward modelling method. Rectangular prism was used as the simple geometric body in the model with potent 4.15.05 software. The results of the qualitative interpretation revealed deep sources within the study area on upward continuation at different heights; the shallow sources and geologic boundaries were delineated by the second vertical derivative map and second horizontal derivative map; the analytical signal revealed the faults within the study area. In terms of quantitative interpretation, the model revealed faults, fold, fracture zones between identical geologic sources, intercalated geologic sources, batholith structures and intruded bodies which suggest high potential zones of mineralization. Also the emplaced bodies in the model have depth to basement values between 2 and 8 km within the sediments, igneous or metamorphic basement. The magnetic susceptibility of most bodies suggested igneous intrusions with a few bodies attributed to metamorphic rocks and implied minerals such as schist, hematite, limonite, pyrite, pyrrhotite, chromite, porphyry, gabbro, basalt, and dolorite, most of which are iron rich.
英文关键词	3D modelling Benue trough High resolution Aeromagnetic
类型	Article
语种	英语
收录类别	ESCI
WOS记录号	WOS:000432245400007
WOS关键词	EVOLUTION
WOS类目	Environmental Sciences
WOS研究方向	Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/332581
作者单位	[Anyadiegwu, C. F.; Ohaegbuchu, H. E.] Michael Okpara Univ Agr, PMB 7267, Umuahia, Abia State, Nigeria; [Ijeh, B. I.] Covenant Univ, PMB 1023, Ota, Ogun State, Nigeria
推荐引用方式 GB/T 7714	Anyadiegwu, C. F.,Ijeh, B. I.,Ohaegbuchu, H. E.. 3D modelling of subsurface features in parts of the Lower Benue Trough, south-eastern Nigeria, with high resolution aeromagnetic data[J],2017,3(3):940-959.
APA	Anyadiegwu, C. F.,Ijeh, B. I.,&Ohaegbuchu, H. E..(2017).3D modelling of subsurface features in parts of the Lower Benue Trough, south-eastern Nigeria, with high resolution aeromagnetic data.MODELING EARTH SYSTEMS AND ENVIRONMENT,3(3),940-959.
MLA	Anyadiegwu, C. F.,et al."3D modelling of subsurface features in parts of the Lower Benue Trough, south-eastern Nigeria, with high resolution aeromagnetic data".MODELING EARTH SYSTEMS AND ENVIRONMENT 3.3(2017):940-959.