Digital elevation model and satellite gravity anomalies and its correlation with geologic structures at Borena basin, in the Southern Main Ethiopian Rift

Abdulkadir, Yahya Ali; Fisseha, Shimeles; Jothimani, Muralitharan

doi:10.1080/22797254.2022.2130096

Cited by 6 publications

(2 citation statements)

References 44 publications

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“…Mapping structural features is essential to exploring hydrocarbon, geothermal, groundwater, and mineral resources. More so, understanding the rock units, faults, contacts, dykes, and lineaments is significant to the structural study (Abdulkadir et al, 2022). Satellite gravity data analysis is constructive in primary exploration, especially in studying geological conditions in remote and extended areas (Kurniawan, 2012;Sadeghi et al, 2013;Zeinelabbdein et al, 2014).…”

Section: Introductionmentioning

confidence: 99%

Identifying the geological structure of the Garyan area in northwest Libya using eigen-6c4 satellite gravity data

Trepil

2024

Acta Geodynamica Et Geomaterialia

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Satellite gravity data can be used in this study to characterise hitherto unexplored regions and enhance scientific understanding of the studied area. However, the geological ambiguity of the study area makes it challenging to figure out the geological interpretation within and around the area. Therefore, this work focused on the Garyan area in the northwest part of Libya for the purpose of identifying geological structures. The Garyan region is a part of Jabal Nafusah (central Jabal) due to its geographic location and the character of the escarpment. The gravity data was analysed, designed, and developed into a geophysical model using the Oasis Montaj programme. Several analytic techniques are applied to gravity datasets for subsurface structure investigation, including (TDR) tilt derivative, (THG) total horizontal gradient, (PS) Power spectrum technique, (AS) Analytical signal, and (ED) Euler deconvolution. The results identified the presence of faults trending in different orientations (N-S, NW-SE, E-W, NNW-SSE, NE-SW), with source depths ranging between 300 and 2300 m, which indicates a complex tectonic history in the area. Clearly, this work will reduce the ambiguity of geological interpretations and provide better information on the dominant trends for future exploration activities in the study region. It also detects the contacts of density variation and estimates the depth of the gravity sources from satellite-EIGEN-6C4 gravity data.

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Section: Introductionmentioning

confidence: 99%

Identifying the geological structure of the Garyan area in northwest Libya using eigen-6c4 satellite gravity data

Trepil

2024

Acta Geodynamica Et Geomaterialia

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“…Mapping structural features is essential to exploring hydrocarbon, geothermal, groundwater, and mineral resources (Masoud and Koike, 2011;Salehi et al, 2015). More so, understanding the rock units, faults, contacts, dykes, and lineaments is significant to the structural study (Abdulkadir et al, 2022). Geophysical tools have numerous applications, including in archaeology, hydrogeology, engineering, ecology, tectonics, mineral deposits, hydrocarbon exploration, and other fields.…”

Section: Introductionmentioning

confidence: 99%

Delineating structure elements and depth of sources using an aeromagnetic data set in the Tarhona region, Nortwest Libya

Trepil¹

2023

Acta Geodynamica Et Geomaterialia

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The Tarhona region, which is situated within the northwestern part of Libya, is a part of Jabal Nafusah (eastern Jabal) due to its geographic location and the character of the escarpment. It is restricted to the east by longitudes 13.00⁰ to 14.00⁰ east and to the north by latitudes 31.45⁰ to 32.25⁰ north. The analysis and interpretation of magnetic data can depict previously unknown regions and improve scientific knowledge of the study area. However, the geological ambiguity of the study area makes it challenging to figure out the geological interpretation within and around the area. Therefore, this study aims to delineate structural elements and depths of sources using an aeromagnetic dataset in the Tarhona region in northwest Libya. Magnetic dataset is reduced to the pole (RTP) within Oasis Montaj. Different filters were utilised to magnetic data, including Total horizontal gradient (THG), CET grid analysis, Power spectrum analysis (PS), Analytic signal (AS), 3D Euler deconvolution (ED), and Tilt derivative (TDR). The result shows various fault tendencies in the N-S, NNW-SSE, and NW-SE directions. The depth of faults was determined from 2000 to above 8000 m after applying 3D Euler deconvolution with the TDR derivative. In addition, a rose diagram was prepared for delineating the trend of the faults using edge detection techniques (THG, CET grid analysis, AS, Euler deconvolution, and TDR). The delineation of subsurface structures in the region is helpful for further hydrocarbon exploration.

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Extraction of Lineaments Using Landsat Image and Digital Elevation Model: A Case Study of Zagros Orogenic Belt, West Iran

Sadeghi,

Teshnizi,

Pash

et al. 2024

J Indian Soc Remote Sens

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Digital elevation model and satellite gravity anomalies and its correlation with geologic structures at Borena basin, in the Southern Main Ethiopian Rift

Cited by 6 publications

References 44 publications

Identifying the geological structure of the Garyan area in northwest Libya using eigen-6c4 satellite gravity data

Identifying the geological structure of the Garyan area in northwest Libya using eigen-6c4 satellite gravity data

Delineating structure elements and depth of sources using an aeromagnetic data set in the Tarhona region, Nortwest Libya

Extraction of Lineaments Using Landsat Image and Digital Elevation Model: A Case Study of Zagros Orogenic Belt, West Iran

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