Geophysical exploration for gold and associated minerals, case study: Wadi El Beida area, South Eastern Desert, Egypt

Sultan, Sultan Awad; Mansour, Salah A.; Santos, Fernando A. Monteiro; Helaly, Ahmad Sobhy

doi:10.1088/1742-2132/6/4/002

Cited by 47 publications

(23 citation statements)

References 18 publications

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“…The new geochemical and mineralogical data presented in this study combined with the extensive gossan along the shear zones, together with the available geophysical data (Sultan et al, 2009) most likely indicate potential gold ore bodies. Accordingly, this area and areas of discernible hydrothermal alteration along major convergent wrench structures in the Eastern Desert of Egypt warrant extensive assay and pitting programs for commercial evaluation.…”

Section: Discussionmentioning

confidence: 60%

“…Significant Au concentrations have been reported in gossans, brecciated quartz and quartz carbonate veins rich in malachite (Kontny et al, 1999;Nano et al, 2002). Anomalous gold concentrations in the gossan-like bodies encouraged a preliminary self-potential magnetic and induced polarization surveying (Sultan et al, 2009), which revealed the presence of conductor bodies (55 to 175 m-across) at~40-53 m depth in this area. Most magnetic and resistivity anomalies coincide with silicified, shear zones, while the low-resistivity zones coincide with the altered metavolcanic rocks (Sultan et al, 2009).…”

Section: Introductionmentioning

confidence: 97%

See 1 more Smart Citation

Lode-gold mineralization in convergent wrench structures: Examples from South Eastern Desert, Egypt

Zoheir

2012

Journal of Geochemical Exploration

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Section: Discussionmentioning

confidence: 60%

Section: Introductionmentioning

confidence: 97%

Lode-gold mineralization in convergent wrench structures: Examples from South Eastern Desert, Egypt

Zoheir

2012

Journal of Geochemical Exploration

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“…), particularly in the areas where resistivity contrast in the lithologies is significant (Sultan et al . ).…”

Section: Introductionmentioning

confidence: 97%

Deep massive sulphide exploration using 2D and 3D geoelectrical and induced polarization data in Skellefte mining district, northern Sweden

Tavakoli

Rasmussen

Weihed

et al. 2016

Geophysical Prospecting

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A B S T R A C TGeoelectrical and induced polarization data from measurements along three profiles and from one 3D survey are acquired and processed in the central Skellefte District, northern Sweden. The data were collected during two field campaigns in 2009 and 2010 in order to delineate the structures related to volcanogenic massive sulphide deposits and to model lithological contacts down to a maximum depth of 1.5 km. The 2009 data were inverted previously, and their joint interpretation with potential field data indicated several anomalous zones. The 2010 data not only provide additional information from greater depths compared with the 2009 data but also cover a larger surface area. Several high-chargeability low-resistivity zones, interpreted as possible massive sulphide mineralization and associated hydrothermal alteration, are revealed. The 3D survey data provide a detailed high-resolution image of the top ß450 m of the upper crust around the Maurliden East, North, and Central deposits. Several anomalies are interpreted as new potential prospects in the Maurliden area, which are mainly concentrated in the central conductive zone. In addition, the contact relationship between the major geological units, e.g., the contact between the Skellefte Group and the Jörn Intrusive Complex, is better understood with the help of 2010 deep-resistivity/chargeability data. The bottommost part of the Vargfors basin is imaged using the 2010 geoelectrical and induced polarization data down to ß1-km depth.

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“…2 Digital elevation map of the study area structural and geological observations, they serve as a means of locating anomalous sources: their depths, dimension, magnetization and in providing lithological information and structural frameworks for inferring information about tectonic evolution, mineralization, etc. (Jaques et al 1997;Aitken and Betts 2009;Gobashy and Al-Garni 2008;Airo and Mertanen 2007;Sultan et al 2009). …”

Section: High-resolution Aeromagnetic (Hram) Data: Processing and Intmentioning

confidence: 99%

Existence of a possible subsurface ring complex in the northwestern part of the Nigerian Younger Granite province: a contribution from aeromagnetic and remote sensing data

2014

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The study area lies within the north-western part of the Nigerian Younger Granite province. It is bounded by latitude 10°30′N and 11°00′N and longitude 8°00′E and 9°00′E. Previous geological and geophysical studies that were carried out in the study area focused mainly on the ring complexes with surface exposure while nothing is known about those without the surface exposure. This has resulted in gap in geo-scientific knowledge which this study aimed to fulfill. First vertical derivative (FVD) and Euler deconvolution of the aeromagnetic data along with processed DEM were used to achieve this purpose. Results of the interpretation revealed a magnetic anomaly, almost circular in shape, with characteristics that are similar to the anomalies that spatially coincide with the prominent ring complexes but without the outcrops that are associated with the complexes. This anomaly is interpreted to be an unexposed ring. Lineaments revealed by the results are mainly oriented in the E-W, NE-SW and NW-SE. The lineaments in the NE-SW and its conjugate are the most developed lineament system. Presence of ring complexes on and along the lineaments favours the opinion that the emplacement sites of the complexes are influenced by the reactivated Pan-African shear zones and transcurrent faults. In particular, the cross-over of major lineaments at the nonoutcropping anomaly may suggest a very weak zone that probably allowed the volcanic eruption that initiated the emplacement of the unexposed ring complex. Results of the Euler deconvolution suggest a cylindrical-like body for the unexposed ring complex, which is consistent with pluton geometry, and a depth that range from outcrop to 1,200 m for it.

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Geophysical exploration for gold and associated minerals, case study: Wadi El Beida area, South Eastern Desert, Egypt

Cited by 47 publications

References 18 publications

Lode-gold mineralization in convergent wrench structures: Examples from South Eastern Desert, Egypt

Lode-gold mineralization in convergent wrench structures: Examples from South Eastern Desert, Egypt

Deep massive sulphide exploration using 2D and 3D geoelectrical and induced polarization data in Skellefte mining district, northern Sweden

Existence of a possible subsurface ring complex in the northwestern part of the Nigerian Younger Granite province: a contribution from aeromagnetic and remote sensing data

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