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Scientific Publishing Center
Document Details
Document Type
:
Article In Journal
Document Title
:
A Gravity and Magnetic Study of the Arba'at Area, Red Sea Hills, Sudan'
دراسة جاذبية ومغنطيسية الأرض لمنطقة أربعات بجبال البحر الأحمر ، السودان
Subject
:
Earth Sciences
Document Language
:
English
Abstract
:
Detailed gravity and magnetic measurements made in Khor Arba'at and the adjoining coastal plain region provide a better definition of the near surface geological features. The Nakasib Shear Zone (NSZ), which represents a reworked suture between two island arcs, is characterized by a gravity low and exhibits a lack of magnetic anomaly. The edges of NSZ, however, display magnetic anomaly associations where the shear zone rocks present a substantial magnetic susceptibility contrast with the surrounding rocks, such as ophiolites. The post-tectonic intrusion of the Arba'at granite has a well defined gravity low which suggests a westward extension of the granite body into the shear zone rocks. The main Arba'at intrusion is estimated to be about 6 km thick. The coastal plain basin containing Mid-Tertiary and younger sediments appear to be laterally segmented by the subsurface relief of the Proterozoic basement. Gravity data suggest a local thickening of sediments in the southern part of the area. Evidence for a regional subsurface fault offsetting the Cenozoic sediments beneath the Recent sediments of the coastal plain is lacking
ISSN
:
1012-8832
Journal Name
:
Earth Sciences Journal
Volume
:
5
Issue Number
:
1
Publishing Year
:
1412 AH
1992 AD
Number Of Pages
:
14
Article Type
:
Article
Added Date
:
Sunday, October 11, 2009
Researchers
Researcher Name (Arabic)
Researcher Name (English)
Researcher Type
Dr Grade
Email
وارث أ. ك . وارثي
WARIS E. K. WARSI
Researcher
ديفيد ك. ألموند
DAVID C. ALMONO
Researcher
عبدالعزيز أ. عثمان
ABDULAZIZ A. OSMAN
Researcher
Files
File Name
Type
Description
21579.pdf
pdf
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