干旱区生态环境知识资源中心(Arid): Study of Curie point depth and heat flow from spectral analysis of aeromagnetic data for geothermal potential of Gubio, Chad Basin, Nigeria

Arid

DOI	10.1007/s42452-020-3146-9
	Study of Curie point depth and heat flow from spectral analysis of aeromagnetic data for geothermal potential of Gubio, Chad Basin, Nigeria
	Dimgba, Bernadette C.; Obiora, Daniel N.; Abangwu, Johnson U.; Ugbor, Desmond O.
通讯作者	Obiora, DN
来源期刊	SN APPLIED SCIENCES
ISSN	2523-3963
EISSN	2523-3971
出版年	2020
卷号	2 期号:8
英文摘要	Aeromagnetic data of Gubio area, Chad Basin, northeastern Nigeria, were interpreted quantitatively by employing spectral analysis technique with the aim to estimate the Curie point depth, geothermal gradient and heat flow in order to determine the geothermal nature of the area. Data enhancement (reduction to pole, RTP and band pass filter) was performed on the total magnetic intensity (TMI) map of the area using oasis Montaj software. The enhanced map was divided into four overlapping blocks, and each block was subjected to spectral analysis. The results gave Curie point depth values ranging from 10.63 to 20.07 km, with deepest depth at the northeast, while the shallowest depth was observed to be conspicuous in the southeastern part of the study area. The estimated geothermal gradient ranges from 28.90 to 54.57 degrees C km(-1) with an average value of 40.26 degrees C km(-1), with low values in the northeast direction, and increases towards southeast. The average geothermal gradient of 40.26 degrees C km(-1) indicates the possibility of hydrocarbon generation and accumulation in Chad basin. The estimated heat flow values range from 72.24 to 136.43 mW m(-2) with an average value of 100.65 mW m(-2), the highest values are found around southeastern part of the study area, and the lowest values are within the northeastern part. The areas of geothermal anomalies with gradient above 50 degrees C km(-1) may be good areas for geothermal reservoir exploration for an alternative source for power generation.
英文关键词	Spectral analysis Aeromagnetic data Curie point depth Geothermal gradient Heat flow Electricity generation Gubio areas
类型	Article
语种	英语
开放获取类型	Bronze
收录类别	ESCI
WOS记录号	WOS:000548130200001
WOS关键词	ANOMALIES ; ANATOLIA ; GRAVITY ; EAST
WOS类目	Multidisciplinary Sciences
WOS研究方向	Science & Technology - Other Topics
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/334469
作者单位	[Dimgba, Bernadette C.; Obiora, Daniel N.; Abangwu, Johnson U.; Ugbor, Desmond O.] Univ Nigeria, Dept Phys & Astron, Nsukka, Enugu State, Nigeria
推荐引用方式 GB/T 7714	Dimgba, Bernadette C.,Obiora, Daniel N.,Abangwu, Johnson U.,et al. Study of Curie point depth and heat flow from spectral analysis of aeromagnetic data for geothermal potential of Gubio, Chad Basin, Nigeria[J],2020,2(8).
APA	Dimgba, Bernadette C.,Obiora, Daniel N.,Abangwu, Johnson U.,&Ugbor, Desmond O..(2020).Study of Curie point depth and heat flow from spectral analysis of aeromagnetic data for geothermal potential of Gubio, Chad Basin, Nigeria.SN APPLIED SCIENCES,2(8).
MLA	Dimgba, Bernadette C.,et al."Study of Curie point depth and heat flow from spectral analysis of aeromagnetic data for geothermal potential of Gubio, Chad Basin, Nigeria".SN APPLIED SCIENCES 2.8(2020).