Document Details

Document Type : Article In Journal 
Document Title :
Reconnaissance Geophysical and Geological Studies on Bahrah Prospect, Makkah Al-Mukarramah Region, KSA
استطلاع الدراسات الجيوفيزيائية والجيولوجية على بروسبكت بحرة ، مكة المكرمة المنطقة ، السعودية
 
Subject : Reconnaissance Geophysical and Geological Studies on Bahrah Prospect, Makkah Al-Mukarramah Region, KSA 
Document Language : Arabic 
Abstract : The geological and geophysical studies carried out on the northern part of Bahrah prospect led to the recognition of a mineralized metarhyolite tuff zone (around 200m wide and 700m long) along the northern extension of the central gossan zone. This zone is characterized by the presence of exposed lensoid masses from metachert (siliceous gossan), massive and banded barite, and magnetite. IP and magnetic surveys along this zone proved the existence of a 40 meters deep anomaly that is open with depth and extends for about 200 m to the north along the strike. The surface barite mineralization is similar mineralogically and chemically to the blind ore encountered in a drill hole drilled about 250 m to the east of the central gossan zone. The exposed barite mineralization contains copper, lead and zinc with ratios greater than 1 %, ≈ 41 % Barium, ≈ 21 % MnO and Au up to 13.5g/t. It seems that there are two mineralized horizons with higher grades to the north. It is recommended to carry out further exploration to the north along the strike of the blind ore as well as the exposed barite mineralization 
ISSN : 1012-8832 
Journal Name : Fac. Earth Sci. King Abdulaziz Univ., Jeddah. Bul 
Volume : 19 
Issue Number : 19 
Publishing Year : 1429 AH
2008 AD 
Article Type : Article 
Added Date : Monday, October 24, 2011 

Researchers

Researcher Name (Arabic)Researcher Name (English)Researcher TypeDr GradeEmail
هشام عبده حربيharbi, hesham abduhResearcherDoctorate 

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