2 edition of Geology of the western portion of the Arabian-Nubian Shield found in the catalog.
Geology of the western portion of the Arabian-Nubian Shield
Abdel Mohsin Abdel Mageed Ahmed Higazy
Thesis (M.Phil.) - Portsmouth Polytechnic, 1991.
|Statement||by Abdel Mohsin Abdel Mageed Ahmed Higazy.|
Evolution and Mineralization of the Arabian-Nubian Shield by Ahmed M. Shanti (Author) ISBN Format: Hardcover. The geologic environments include Precambrian crystalline basement (Late Proterozoic) of Arabian Nubian Shield (ANS) that is composed of igneous and metamorphic rocks at south-western part.
exposures of the Western Ethiopian Shield are positioned within the juvenile Neoproterozoic crust of the Arabian Nubian Shield and the older, predominately gneissic Mozambique Belt (Woldemichael et al. ). The age and origin of the Western Ethiopian Shield are still largely unidentified. The aim of this paper is to constrain the age and. This richly illustrated book offers a concise overview of the geology of Egypt in the context of the geology of the Arab Region and Northeast Africa. An introductory chapter on history of geological research in Egypt sheds much light on the stages before and after the establishment of Egyptian Geological Survey (the second oldest geological.
The western part is largely highlands made up of Pre-Cambrian basement and Cenozoic volcanic caps, while the eastern part is lowland of sedimentary cover and divided into structural arches and basins. Figure 3 shows four regional cross sections depicting typical stratigraphy and structural setup of sedimentary basins in onshore Yemen. The geology of Egypt includes rocks from Archaean - early Proterozoic times onwards. These oldest rocks are found as inliers in Egypt’s Western contrast, the rocks of the Eastern Desert are largely late Proterozoic in age. Throughout the country this older basement is overlain by Palaeozoic sedimentary rocks. Cretaceous rocks occur commonly whilst sediments indicative of repeated.
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Geology of the Arabian Peninsula; shield area of western Saudi Arabia Professional Paper A By: Glen F. Brown, Dwight L. Schmidt, and A. Curtis Huffman Jr. Geology of the Arabian Peninsula shield area of western Saudi Arabia Open-File Report By: Glen F.
Brown, D.L. Schmidt, and A.C. Huffman. Geology of the Arabian-Nubian Shield — an overview 21 the continental basement (Agar, ). Agar () found these sedimentary sequences to be similar to those that were formed along the continental margins of western North and South America.
This is confirmed by geochemical analyses of volcanic rocks of the Siham Group (Agar, ). Some of the post-tectonic granites (ca. Ma) which intrude diorites and metamorphic rocks of the Precambrian Hulayfah Group in the western part of the Arabian Shield are peralkaline; and Hadb-Aldyaheen riebeckite granite and granite porphyry ring complex and the Jabal Sayid riebeckite granite are typical examples.
Arabian-Nubian Shield The Arabian-Nubian Shield (ANS) is an exposure of Precambrian crystalline rocks on the flanks of the Red Sea. The crystalline rocks are mostly Neoproterozoic in age. Geographically - and from north to south - the ANS includes the nations of Israel, Jordan.
An Expanding Arabian-Nubian Shield Geochronologic and Isotopic Dataset: Defining Limits and Confirming the Tectonic Setting of a Neoproterozoic Accretionary Orogen The Open Geology Journal,8: Peter R. Johnson Electronic publication date 21/2/ [DOI: /].
Serious study of the geology of western Saudi Arabia began in ( A.H.) at the request of King Abdulaziz Al Saud. Reconnaissance mapping and photo-interpretation were combined with maps compiled by international oil companies, and the resultant maps were published by at scales ofandDuring the first half of the 20th century fluid inclusions have been studied in ore geology in order to determine the chemistry and physical parameters (density) of the mineralising fluids.
This book provides an overview of the Neoproterozoic Pan-African Belt of Egypt The Geology of the Egyptian Nubian Shield. Editors: Hamimi, Z., Arai, S., Fowler, A.-R., El-Bialy, M. (Eds.) Shares cutting-edge findings on the geology of the Egyptian-Nubian shield ; Presents an essential overview of the Neoproterozoic Pan-African Belt of Egypt.
This book discusses the geological investigations of the tectonic evolution, structure, and metallogenesis of the Arabian–Nubian Shield.
Organized into four parts encompassing 15 chapters, this volume begins with an overview of the study of the geology of the western Saudi Arabia. This text then examines the Pan-African basement, which has Price: $ The Egyptian basement is a part of the Arabian-Nubian shield which in turn constitutes a significant portion of the East African Orogeny (EAO).
Paleozoic Arabian-Nubian Shield of eastern Egypt-Sudan-Ethiopia from the western Ara-bian Peninsula. The Gulf of Eilat (Aqaba) is a northeast extension of the Red Sea separating southeastern Sinai from northwest Saudi Arabia and southwest Jordan.
In Israel, the southernmost exposure of the shield is in the vicinity of the historic copper mines. 9 Unique position t Few western companies with Au and Cu exposure in the highly prospective under- explored Arabian-Nubian Shield; 9 Strategic Saudi partner - (Abdul Rahman Saad al-Rashid and Sons [ARTAR], major family construction company, provides administrative, logistical and financial support; 9 Database - ' D[ proprietary database for selective targeting in the Arabian-Nubian Shield.
Arabian Desert. In Arabian Desert: Geology. platform (a segment of the African Shield), is in the west. It is composed mainly of Precambrian gneiss (dated to between billion and roughly million years ago) and was assembled roughly to million years ago.
evolution of the Nubian Shield. Evolution of the Nubian Shield in Egypt The basement rocks of the Eastern Desert of Egypt constitute the Nubian Shield that has formed a con-tinuous part with the Arabian Shield in the Arabian Peninsula before the opening of the Red Sea.
It is generally accepted that the basement of the Nubian Shield was. The Eastern Desert is a part of the Arabian Nubian Shield (Shield is a collage of Neoproterozoic tectonostratigraphic terrains linked to ophiolite-decorated sutures).
This desert is generally a huge and rough mountainous terrain composed of Precambrian basement (igneous and metamorphic) rocks. This book is divided into five main topics — structure and evolution; metallogenesis; plutonic rocks; metamorphic rocks; and ophiolites. In these topics, this text specifically discusses the Precambrian tectonics of North-East Africa; cratonic ore provinces separated by continental drift; peralkaline granite in the western part of the Arabian Shield; and Semail ophiolite and associated massive sulfide deposits.
The basement rocks of Eritrea are part of the Arabian Nubian Shield (ANS) which are exposed in north east Africa (Egypt, Sudan, Eritrea, and Ethiopia) and in Saudi Arabia, northern and northwest- ern parts of Yemen and part of the western Middle East.
The shield is believed to repre- sent a mega suture between East and West Gondwana. Dismembered and low-grade metamorphosed occurrences of mafic extrusive and intrusive and minor ultramafic rocks, grouped as the Arid unit, similar to those of the Arabian Nubian Shield (ANS), are reported here for the first time in the westernmost part of the Nuba Mountains, southeastern Sudan.
The Arabian-Nubian Shield on the western edge of Arabia. The Antarctic Shield. In Asia, an area in China and North Korea is sometimes referred to as the China-Korean Shield. The Angaran Shield, as it is sometimes called, is bounded by the Yenisey River on the west, the Lena River on the east, the Arctic Ocean on the north, and Lake Baikal on the south.
Schematic reconstruction of the accretionary evolution of the Arabian Plate. By Ma, the Asir, Hijaz and Midyan terranes formed the western part of the Arabian Shield. Between about and Ma the Afif terrane collided with the western Shield along the Nabitah Suture.
At about Ma, a subduction complex formed west of the Amar Arc.Akobo Gold District. Akobo is an extensive placer gold region characterized by a Precambrian belt of metamorphic rocks.
These rocks constitute the southernmost part of the West Ethiopian Precambrian Greenstone Belt, a southern extension of the Arabian-Nubian Shield, known for many gold deposits, ancient and modern.The lithosphere of the Arabian–Nubian shield was mainly formed during an interval of about million years near the end of the Proterozoic aeon.
The events recorded in the rocks of the shield.