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DOI	10.1007/s12517-022-09442-3
	Gravity and electrical resistivity investigations to mark concealed seepage sources from Kanjoor Dam, Pakistan
	Zafar, Waqar Ali; Shakir, Urooj; Ahmed, Rizwan; Ahmed, Junaid; Khan, Muhammad Younis; Akhtar, Shamim; Iqbal, Talat
通讯作者	Zafar, WA (corresponding author)，Pakistan Inst Engn & Appl Sci, DNE, Islamabad, Pakistan. ; Zafar, WA (corresponding author)，Natl Ctr Phys, Ctr Earthquake Studies, Shahdra Valley Rd, Islamabad, Pakistan.
来源期刊	ARABIAN JOURNAL OF GEOSCIENCES
ISSN	1866-7511
EISSN	1866-7538
出版年	2022
卷号	15 期号:2
英文摘要	This study has been carried out to investigate the probable reasons of water seepage from Kanjoor Dam, lying at North Western end of Khairi Murat Fault (KMF), one of the splays of Kala Chitta Ranges in Northern Potowar Deformed Zone (NPDZ), Pakistan. Resistivity and gravity variations along and across the target zone have been studied to mark the probable causative subsurface structures responsible for water loss from the dam. Most of the structures located in the study zone are resultant of the northward movement being accommodated at Himalayas. In order to have a firsthand approximation about the subsurface structure, 2D resistivity survey was carried out along two profiles. Results from two profiles suggested the existence of weak zone in the subsurface as resistivity has varied from 0.7 to 990 Omega m. These variations were strong enough to believe about the structural variation. Resistivity survey was lately followed by relative gravity variations for validation of results. Gravity measurements were taken with approximately 50 m station spacing, so that maximum of the anomalous zones were studied. The gravity anomalies were analyzed using Oasis Montaj GM software, where built-in Gaussian filter was applied for regional to residual separations, and the vertical and horizontal derivatives were applied to sharpen the edges of anomalous zones. The outcome of the gravity survey was consistent with the resistivity measurements as the variation was from - 45 to 35 mGal, and therefore suggested the existence of weak zone too. The anomalous residuals are indicative of near-surface feature and give a clear difference of some continuous subsurface disturbance along which water percolation is taking place. Conclusively, it can be perceived that these two nondestructive and less laborious techniques can work in composite usefully to mark the approximate existence of the unsighted structures.
英文关键词	Gravity studies Bouguer anomalies Resistivity Pakistan
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000744530300011
WOS关键词	RADON
WOS类目	Geosciences, Multidisciplinary
WOS研究方向	Geology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/376786
作者单位	[Zafar, Waqar Ali; Ahmed, Rizwan] Pakistan Inst Engn & Appl Sci, DNE, Islamabad, Pakistan; [Shakir, Urooj] Bahria Univ, Bahria Sch Engn & Appl Sci, Dept Earth & Environm Sci, H11 Campus, Islamabad, Pakistan; [Zafar, Waqar Ali; Ahmed, Junaid; Iqbal, Talat] Natl Ctr Phys, Ctr Earthquake Studies, Shahdra Valley Rd, Islamabad, Pakistan; [Khan, Muhammad Younis] Univ Peshawar, Natl Ctr Excellence Geol, Peshawar, Pakistan; [Akhtar, Shamim] Univ Sargodha, Dept Earth Sci, Sargodha, Pakistan
推荐引用方式 GB/T 7714	Zafar, Waqar Ali,Shakir, Urooj,Ahmed, Rizwan,et al. Gravity and electrical resistivity investigations to mark concealed seepage sources from Kanjoor Dam, Pakistan[J],2022,15(2).
APA	Zafar, Waqar Ali.,Shakir, Urooj.,Ahmed, Rizwan.,Ahmed, Junaid.,Khan, Muhammad Younis.,...&Iqbal, Talat.(2022).Gravity and electrical resistivity investigations to mark concealed seepage sources from Kanjoor Dam, Pakistan.ARABIAN JOURNAL OF GEOSCIENCES,15(2).
MLA	Zafar, Waqar Ali,et al."Gravity and electrical resistivity investigations to mark concealed seepage sources from Kanjoor Dam, Pakistan".ARABIAN JOURNAL OF GEOSCIENCES 15.2(2022).