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السجلات المعروضة 51 -- 60 من 117
Contribution To The Sedimentology Of The Bahariya Formation Of Gebel El-Dist, Bahariya Oasis, Western Desert, Egypt
(
Qatar University
, 1983 , Article)
Combined microscopic, grain-size and heavy-mineral analyses were carried out on the Bahariya Formation at Gebel El-Dist (type section), Bahariya Oasis. These studies revealed that the formation is composed of moderately ...
Mineralogy and Chemistry of Desert Roses, Ayn Dar Area, Abqaiq, Eastern Province, Saudi Arabia
(
Qatar University
, 2002 , Article)
Desert roses are crystals which usually take the form of rose petal. They have definite crystal shapes, and enclose sand grains. The desert roses were scattered along an area of about 500m2 in the Ayn Dar area, near Abqaiq, ...
Late Maastrichtian And Paleocene Calcareous Nannofossils From Ain Dabadib Section, Nw Kharga Oasis, Egypt
(
Qatar University
, 1991 , Article)
On terms of calcareous nannofossils, the late Maastrichtian and Paleocene sediments were subdivided into several biozones. The Cretaceous-Tertiary boundary is marked by a hiatus concerning the latest Maastrichtian and the ...
Application of optimum offset shallow seismic reflection technique In the area of west el fashn, egypt
(
Qatar University
, 1996 , Article)
A shallow optimum offset reflection survey was performed in El Fashn area. The purpose of this survey was to determine the continuity of the subsurface boundary conditions
The optimum offset shallow seismic reflection ...
Study of carbonate rocks of the khuff and Jubaila formations , saudi arabia by Thermal derivatography
(
Qatar University
, 1997 , Article)
Thermal derivatographic analysis of the Khuff and Jubaila carbonate rocks shows that calcite and / or dolomite (of calcitic type) are the main constituent minerals. Their differential thermal and thermogravimetric behaviours ...
Lithofacies and depositional environments Of the lower jurassic sediments In central Saudi Arabia
(
Qatar University
, 1999 , Article)
The lithofacies, microfacies and sedimentary environments of the surface Lower. Jurassic sediments in central Saudi Arabia are studied. The Lower Jurassic is represented by the marine clastic Marrat Frormation which is ...
Origin And Tectonic Environment Of The Pan-African Rocks Of Abu El Tiyur Area, Eastern Desert, Egypt
(
Qatar University
, 1995 , Article)
The present paper deals with the geochemistry and origin of the Pan - African basement rocks, which covers about 825 km2 North of Abu El Tiyur area, in the Central Eastern Desert of Egypt.
The petrochemical character of ...
Structural Elements And Formation Parameters For Some Lower Cretaceous Sequences In The Western Desert, Egypt
(
Qatar University
, 1987 , Article)
The Lower Cretaceous sequences in the northern part of the Western Desert has been penetrated by many of drilled bore—holes adopted by different oil companies. It was encountered at depths ranging from 1200 to 3500 m. The ...
Petrology, Mineralogy and Genesis ofWadi Dana Cambrian Manganese Deposit, Central Wadi Araba Region, Jordan
(
Qatar University
, 2001 , Article)
Manganese oxides occurring at Wadi Dana (central Wadi Araba region, Jordan) are mainly hosted in the middle Cambrian dolomite limestone shale unit (DLSU). This deposit was investigated to elucidate their petrographic ...
Lineament Analysis Of Qatar Peninsula Based On Landsat Imagery
(
Qatar University
, 1990 , Article)
Photo-interpretation of Landsat MSS images of Qatar Peninsula reveals several surface lineaments of different types, extentions and trends. Some of these photo-lineaments are of structural nature while others represent ...