The geography and geology of south-eastern Egypt
THE GEOGRAPHY AND GEOLOGY OF SOUTH-EASTERN EGYPT.
OROGRAPHICAL MAP OF SOUTH-EASTERN EGYPT.
Photo-Metal-Process. Survey Dept. Cairo 1910. (60-190)
MINISTRY OF FINANCE.
SURVEY DEPARTMENT, EGYPT.
BY JOHN BALL, Ph.D., D.Sc., F.G.S., A.R.S.M., M.Inst.C.E.
CAIRO: Government Press.
To be obtained either directly or through any Bookseller, from the Publications Office, Government Press, Bulaq; from the Sale-Room, Geological Museum, Ministry of Public Works Gardens; or from the Survey Department, Gîza (Mudiria).
1912.
Price 40 p.t.
This book is an attempt to give a systematic account of the geography and geology of South-Eastern Egypt according to the latest information available. It is based on surveys which I carried out by order of the Egyptian Government during the four years 1905-1908, and has been written in the intervals of other official work during the succeeding three years.
In the first or introductory chapter, I have given a summary, with some criticisms, of previous accounts of the region. This seemed advisable in that the literature, although not very extensive, is scattered in books and papers in various languages, and is not always easy of access.
John Ball
---
PREFACE.
CONTENTS.
LIST OF PLATES.
LIST OF ILLUSTRATIONS IN THE TEXT.
Triangulation.
Summary of Triangulated Positions.
Comparison of Positions determined on the Red Sea with those previously found in Official Marine Surveys.
Detail Surveying along Lines of March.
Detail Surveying at Occupied Triangulation Stations.
Survey of the Coast-line.
Location of the Administrative Boundary between Egypt and the Sudan.
Variation of the Compass.
Remarks on Water Transport.
List of Water Sources.
INTERMEDIATE IGNEOUS ROCKS.
Gneisses.
Quartzites and Quartz-schists.
Clay-schists.
Hornblende-schists and Crushed Volcanic Rocks.
Hornfels.
Mica-schists.
Chlorite-schists.
Talc-schists.
Calcareous Schists and Marble.
Graphite-schists.
Breccias.
Mineral Veins.
Evidence of a former Pluvial Period.
Origin of the Red Sea.
Possible Former Extent of the Eocene Rocks.
Original Extent of the Nubian Sandstone.
The Igneous and Metamorphic Rocks.
Summary of Geological History of South-Eastern Egypt.
MAPS AND PLANS.
ATLASES AND SCHOOL-MAPS.
PUBLICATIONS.
Transcriber's note: