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Transactions of the Symposium on Photo Interpretation

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fullscreen: Transactions of the Symposium on Photo Interpretation

Monograph

Persistent identifier:: 856342238

Title:: Transactions of the Symposium on Photo Interpretation

Sub title:: Delft, The Netherlands, September 1962 ; [held in the International Training Centre for Aerial Survey and adjacent buildings of the Technical University from August 29 - September 5, 1962]

Scope:: 532 Seiten

Year of publication:: 1962

Place of publication:: Delft

Publisher of the original:: Waltman

Identifier (digital):: 856342238

Illustration:: Illustrationen, Diagramme, Karten

Language:: English; French; German

Usage licence:: Attribution 4.0 International (CC BY 4.0)

Publisher of the digital copy:: Technische Informationsbibliothek Hannover

Place of publication of the digital copy:: Hannover

Year of publication of the original:: 2016

Document type:: Monograph

Collection:: Earth sciences

Chapter

Title:: WORKING GROUP 2, GEOLOGY, INCLUDING GEOMORPHOLOGY, HYDROLOGY.

Document type:: Monograph

Structure type:: Chapter

Chapter

Title:: THE APPLICATION OF RECONNAISSANCE PHOTOGEOLOGY TO MINERAL INVESTIGATION IN CENTRAL NYASALAND. E. A. STEPHENS.

Document type:: Monograph

Structure type:: Chapter

Transactions of the Symposium on Photo Interpretation
Cover
ColorChart
Title page
Title page
PREFACE.
STEERING COMMITEE.
CONTENTS.
At the formal opening ceremony on 30th August, [...]
NATURAL RESOURCES INVENTORY FOR DEVELOPING COUNTRIES.
RESOLUTIONS.
WORKING GROUP 1, PHOTOGRAPHY, EQUIPMENT AND TECHNIQUES.
SOME METHODS AND INVESTIGATIONS FOR DETERMINING THE QUALITY OF AERIAL PHOTOGRAPHS. ERIK WELANDER.
RATIONAL PLANNING AND EXECUTION OF AERIAL PHOTOGRAPHY. F. L. CORTEN.
SPECIFICATIONS FOR MIRROR STEREOSCOPES. S. A. HEMPENIUS.
MAN-MACHINE TASK SHARING IN ADVANCED PHOTO INTERPRETATION SYSTEMS. RAYMOND P. BARRETT.
EFFECT OF SELECTED PHOTO CHARACTERISTICS ON DETECTION AND IDENTIFICATION. ABRAHAM H. BIRNBAUM.
WORKING GROUP 2, GEOLOGY, INCLUDING GEOMORPHOLOGY, HYDROLOGY.
AERIAL PHOTOGRAPHS AS INSTRUMENTS OF RESEARCH IN AREAS OF REGIONAL METAMORPHISM. J. A. E. ALLUM.
APPLICATION DE L'ETUDE DES PHOTOGRAPHIES AERIENNES A LA TECTONIQUE DES ZONES EXTERNES DES ALPES FRANÇAISES. J. SARROT-REYNAULD.
INTERPRETATION PHOTO GEOLOGIQUE DE LA TECTONIQUE AU NORD DE LA PROVINCE DE SEVILLE. CARMEN MARIN, ENRIQUE MINGARRO.
ROCK WEATHERING IN RELATION TO THE INTERPRETATION OF IGNEOUS AND METAMORPHIC ROCKS IN ARID REGIONS. J. E. G. W. GREENWOOD.
THE PHOTOGEOLOGICAL INTERPRETATION OF CERTAIN METAMORPHIC ROCKS IN EAST AND CENTRAL AFRICA. E. A. STEPHENS.
ANALYSE PHOTO GEOLOGIQUE DES STRUCTURES PLISSEES PRE-CAMBRIENNES DU BAS-CONGO (TERRAINS POST-MAYUMBIENS). J. F. GÉRARDS.
RAPPORT SUR L'APPLICATION DE LA PHOTOGEOLOGIE "PRE-CONTROLEE" EN AFRIQUE CENTRALE. J. GÉRARDS, H. LADMIRANT.
QUINZE DEGRES CARRES COUVERTS AU CONGO (LEOPOLDVILLE) PAR METHODE PHOTOGEOLOGIQUE. R. L. G. THONNARD.
THE APPLICATION OF RECONNAISSANCE PHOTOGEOLOGY TO MINERAL INVESTIGATION IN CENTRAL NYASALAND. E. A. STEPHENS.
THE ESTIMATION OF METRIC ELEMENTS OF A LINE ON AERIAL PHOTOGRAPHS. M. B. MARKOVIC, M. D. DIMITRIJEVIC, R. S. PETROVIC.
WORKING GROUP 3, SOILS, INCLUDING LAND CLASSIFICATION, SOIL CONSERVATION.
THE APPLICATION OF AERIAL PHOTOGRAPHS FOR SOIL SURVEYS IN DEVELOPMENT PROJECTS. P. BURINGH.
THE USE OF BASIC PHYSIOGRAPHIC UNITS IN AIR PHOTO INTERPRETATION. RICHARD WEBSTER.
LANDFORM TYPE ANALYSIS ON AERIAL PHOTOGRAPHS. ITS PRINCIPLE AND ITS TECHNIQUES. TAKAMASA NAKANO.
SOIL CLASSIFICATION AND PHOTO INTERPRETATION. L. F. CURTIS.
ESSAIS DE PHOTO-INTERPRETATION EN ZONE FORESTIERE OMBROPHILE DU SUD-OUEST DE LA COTE D'IVOIRE. P. DE LA SOUCHERE N. LENEUF.
SOIL SURVEYS IN TIMBERED MOUNTAIN LANDS OF THE U.S.A. JOHN. L. RETZER.
THE ANALYSIS OF SHIFTING CULTIVATION AREAS. J. J. REYNDERS.
THE USE OF PHOTO INTERPRETATION FOR DETAILED SOIL MAPPING. R. A. JARVIS.
THE USE OF AIR PHOTOGRAPHS IN THE STUDY OF PATTERNED GROUND IN EAST ANGLIA. R. M. S. PERRIN.
THE DISINTEGRATION OF NARI LIME CRUST IN RELATION TO RELIEF, SOIL AND VEGETATION. JOEL DAN.
THE PLACE OF PEDOLOGICAL RESEARCH THE AGRICULTURAL DEVELOPMENT PLAN. K. VAN DER MEER.
WORKING GROUP 4, VEGETATION, INCLUDING FORESTRY, PLANTEGOLOGY.
AERIAL SURVEY METHODS FOR FORESTRY AND FOREST INDUSTRY PRE-INVESTMENT SURVEYS IN DEVELOPING COUNTRIES. DAVID A. FRANCIS.
A PROPOS DE LA PHOTO AERIENNE ET DES INVENTAIRES POUR L'EXPLOITATION FORESTIERE EN FORET DENSE EQUATORIALE. R. CATINOT et J. LE RAY.
DER MASSTABSADJUSTIERUNGSFAKTOR BEI DER FLÄCHENBESTIMMUNG DURCH PUNKTSTICHPROBE AUS DEM LUFTBILD. F. LOETSCH, E. HALLER.
CONTRIBUTION DE LA PHOTO INTERPRETATION A L'ETUDE ET A LA CARTOGRAPHIE DES PATURAGES TROPICAUX. GABRIEL BOUDET, JEAN KOECHLIN, FREDERIC BAEYENS.
SEASONAL TRENDS IN LIGHT REFLECTANCE FROM TREE FOLIAGE. CHARLES E. OLSON, JR.
THE IDENTIFICATION OF TREE SPECIES ON LARGE SCALE PANCHROMATIC AND COLOR PHOTOGRAPHS. GEORGE E. DOVERSFIKE and ROBERT C. HELLER.
EIN VERGLEICH DER FORSTLICHEN INTERPRETATION PANCHROMATISCHER UND INFRAROTER LUFTBILDER. G. HILDEBRANDT.
EINE NÄHERUNGSMETHODE ZUR ENTZERRUNG VON GEBIRGSWALDAUFNAHMEN. B. RHODY.
BETRACHTUNGEN ÜBER DIE VERWENDUNG KLEINMASSTÄBLICHER LUFTBILDER FÜR FORSTLICHE BESTANDSAUSSCHEIDUNGEN. WILHELM VON LAER.
LARGE SCALE SAMPLING PHOTOGRAPHS FOR FOREST SURVEYS IN CANADA. L. SAYN-WITTGENSTEIN.
ÜBER DIE ZUVERLÄSSIGKEIT DER PHOTOINTERPRETATION GESCHLOSSENER VEGETATIONSGEBIETE. ZDENKO TOMASEGOVIC.
WORKING GROUP 5, REGIONAL GEOGRAPHY AND PLANNING.
GEOGRAPHISCHE LUFTBILDINTERPRETATION. CARL TROLL.
THE APPLICATION OF PHOTO-INTERPRETIVE TECHNIQUES TO GEOGRAPHICAL AND PLANNING STUDIES IN CANADA. R. F. TOMLINSON.
FROM POOR HEATH TO FLOURISHING SEASIDE RESORT A COMPARATIVE AIR PHOTO STUDY OF SOME LAND USE CHANGES ON THE SKANÖR PENINSULA, SWEDEN. GUNNAR RASMUSSON.
KLEINMASSTÄBLICHE LUFTBILDER FÜR DIE GEOGRAPHISCHE LANDSCHAFTSERKUNDUNG UND RAUMGLIEDERUNG. ERNST SCHMIDT-KRAEPELIN.
UTILISATION DE LA PHOTO AERIENNE DANS LES RECHERCHES DE GEOGRAPHIE HUMAINE AU CONGO. J. WILMET.
GEOGRAPHICAL SURVEYS BY MEANS OF AERIAL PHOTO INTERPRETATION IN JAPAN. T. NAKANO, M. TAHASAKI and R. KAWAI.
ERFAHRUNGEN BEI DER LUFTBILDINTERPRETATION IM TROPISCHEN NEU-GUINEA. ERNST REINER.
ERFAHRUNGEN IM GEBRAUCH VON LUFTBILDERN BEI DER LANDNUTZUNGSKARTIERUNG VON PUERTO RICO. DIETER BRUNNSCHWEILER.
DAS LUFTBILD IM DIENSTE DER LANDERHALTUNG UND LANDGEWINNUNG. RUDOLF DOLEZAL.
DIE HILFE DES LUFTBILDES FÜR DIE PRAKTISCHE BODENEROSIONSBEKÄMPFUNG. GEROLD RICHTER.
DIE HILFE DES LUFTBILDES BEI DER LANDSCHAFTSPLANUNG. GERT KRAGH.
DIE VERWENDUNG VON LUFTBILDERN ALS PLANUNGSGRUNDLAGE FÜR DIE WIRTSCHAFTLICHE NEUORDNUNG IM GEBIRGE. DIETER STEINER und HAROLD HAEFNER.
DAS LUFTBILD IM DIENSTE DER STANDORTSERKUNDUNG AUF MITTELGEBIRGSWEIDEN. WERNER KRAUSE.
LES BESOINS DE LA PLANIFICATION EN MATIERE DE CARTOGRAPHIE AGRONOMIQUE. SOGETHA.
MÖGLICHKEITEN DER VERWENDUNG DES LUFTBILDES IN DER STADTGEOGRAPHIE. JÜRGEN KÖRBER.
WORKING GROUP 6, ICE.
PHOTO INTERPRETATION OF ICE AND SNOW FEATURES IN THE ANTARCTIC. DAVID LANDEN.
SOME RESULTS OF THE INTERPRETATION OF AERIAL PHOTOGRAPHS OF SEA-ICE AND PROSPECTS OF FURTHER DEVELOPMENT OF AERIAL SURVEYS FOR THE STUDY OF ICE. V. I. AVGEVICH.
ENGINEERING INFORMATION OF ARCTIC AREAS OBTAINED FROM AERIAL IMAGERY. ROBERT D. LEIGHTY.
THE USE OF SATELLITES FOR ICE STUDIES. R. W. POPHAM.
WORKING GROUP 7, ARCHAEOLOGY.
AIR PHOTOGRAPHY AND ARCHAEOLOGY IN BRITAIN; RECENT RESULTS. J. K. S. ST JOSEPH.
L'ARCHEOLOGIE AERIENNE EN FRANCE. R. CHEVALLIER.
AERIAL PHOTOGRAPHY IN ARCHAEOLOGICAL SURVEYS IN SYRIA. W. J. VAN LIERE.
AIR PHOTOGRAPHS AND THE STUDY OF ANCIENT FIELDS IN ENGLAND. H. C. BOWEN.
TIMBER STRUCTURES REVEALED BY AERIAL PHOTOGRAPHY. RICHARD FEACHEM.
EXPERIENCES WITH AERIAL PHOTOGRAPHS IN THE STUDY OF CASTLES. A. I. J. M. SCHELLART.
WORKING GROUP 8, OCEANOGRAPHY AND COASTAL RESEARCH.
LES ETUDES OCEANOGRAPHIQUES, LITTORALES ET SOUS-MARINES PAR L'NTERPRETATION DES PHOTOGRAPHIES STEREOSCOPIQUES La Carte à 1 : 10.000 du Golfe Normand-Breton. FRANCIS RUELLAN.
ZUR ERMITTLUNG VON STURMFLUTDEICHSCHÄDEN MIT HILFE VON LUFTBILDERN. HELMUT SCHROEDER-LANZ.
LANDFORM CLASSIFICATION FOR FLOOD PREVENTION USING AERIAL PHOTOGRAPHS. T. NAKANO, M. OHYA and T. KANAKUBO.
SHORELINE DEVELOPMENT AND PROTECTION OF NEGOMBO BEACH CEYLON; AN AERIAL PHOTOGRAPHIC APPROACH. L. HERATH.
WORKING GROUP 9, ENGINEERING.
A CONCEPT OF LAND FORMS, PARENT MATERIALS, AND SOILS IN AIRPHOTO INTERPRETATION STUDIES FOR ENGINEERING PURPOSES. ROBERT D. MILES.
APPLICATION OF PHOTO INTERPRETATION IN ROUTE LOCATION. ROBERT R. BLESCH and TA LIANG.
AIRPHOTO INTERPRETATION STUDY FOR THE DIVISION OF ROADS AND ROAD TRAFFIC OF THE SOUTHERN RHODESIAN GOVERNMENT. J. R. ATKINSON and N. B. BROWN.
A REPORT ON THE APPLICATION OF AIRPHOTO INTERPRETATION IN THE FEDERATION OF MALAYA. CHIN FUNG KEE.
AIRPHOTO INTERPRETATION APPLIED TO SOIL ENGINEERING MAPPING IN SOUTH AFRICA. A. B. A. BRINK.
AIRPHOTO INTERPRETATION OF ORGANIC TERRAIN FOR ENGINEERING PURPOSES. NORMAN W. RADFORTH.
PHOTO INTERPRETATION IN PROSPECTING FOR GRANULAR CONSTRUCTION MATERIALS. J. D. MOLLARD.
FRACTURE PATTERNS OF THE NATURAL STEAM AREA OF LARDERELLO, ITALY, FROM AIRPHOTOGRAPHS. E. MARCHESINI, A. PISTOLESI and M. BOLOGNINI.
AUTHOR INDEX.
Cover

Full text

' ;•.: : A 
THE APPLICATION OF RECONNAISSANCE 
PHOTOGEOLOGY TO MINERAL INVESTIGATION 
IN CENTRAL NYASALAND 
by E. A. Stephens 
Dept, of Technical Co-operation, Overseas Geological Surveys, 
Photogeological Division, Tolworth, Surrey, England 
The Lilongwe-Salima area in central Nyasaland is composed of regionally 
metamorphosed sediments comprising gneisses, schists, and granulites. The 
area had not been mapped geologically before 1961, but it was known that 
graphitic gneiss occurred within the metamorphic series from the evidence of 
road cuttings and isolated observations. In 1961 the author made a recon 
naissance photogeological map of the area checked by four months’ field work, 
during which he was asked to investigate the possibility of tracing the zones 
of graphitic gneiss photogeologically. 
Examination of the air photographs (scale approximately 1 : 40,000) showed 
that the graphitic gneiss could not be distinguished from the other meta 
sediments. The graphite occurs as small disseminated flakes within the gneiss 
over a wide area and, even where the graphite is abundant in the gneiss, it 
does not appear to have any recognisable effect on the vegetation or topo 
Abstract An account is given of the photogeological mapping of graphitic gneiss and zones 
of pyrite impregnation during a photogeological reconnaissance in central Nyasaland. The 
beds of graphitic gneiss could not be distinguished photographically from other metasediments, 
and their successful mapping depended on the assumption that foliation of the metasediments 
represents original bedding. It is argued that metasedimentary foliation and original bedding 
coincide when the regional metamorphism took place under conditions of confining pressure, 
and that air photographs can provide evidence as to whether confining pressure or directed 
stress was dominant during metamorphism. 
Résumé L’auteur fait un exposé sur le lever d’une carte photogéologique de gneiss graphi 
tique et de zones d’imprégnation pyritique pendant une reconnaissance photogéologique au 
Nyasaland central. Il n’a pas été possible de distinguer sur les photographies les couches de 
gneiss graphitique des autres métasédiments et l’on s’est basé, pour cartographier ces gneiss, 
sur le fait que la schistosité des métasédiments correspond à leur stratification originelle. 
On pense que la schistosité métasédimentaire et la stratification originelle coïncident lorsque 
le métamorphisme régional s’est produit sous des conditions de pression restreinte et que les 
photographies aériennes peuvent prouver si une pression restreinte ou au contraire une force 
dirigée prédominait pendant le métamorphisme. 
Zusammenfassung Es wird über die photogeologische Kartierung von graphitischem 
Gneiss und von Zonen mit Pyrit-Impregnation während einer photogeologischen Unter 
suchung in Zentral-Nyasaland berichtet. Der graphitische Gneiss konnte in den Luftbildern 
nicht von anderen Metasedimenten geschieden werden und die Möglichkeit die Gneiss zu 
kartieren beruhte auf der Annahme, dass die Schieferung der Metasedimente der ursprüng 
lichen Schichtung entspricht. Es werden Gründe angeführt, dass Schieferung und ursprüng 
liche Schichtung sich decken, wenn der regionale Metamorphismus unter den vom Gebirgs- 
druck beherrschten Bedingungen stattfindet und dass Luftbilder darüber Aufschluss geben 
können, ob der Gebirgsdruck, oder tektonische Druck während der Metamorphose vor 
herrschten.

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