VIIIth International Congress of Photogrammetry: General reports

Fagerholm, P. O.; Lycken, L. E.; Thunberg, A.; Öhlin, K. A.

Bibliographic data

Multivolume work

Persistent identifier:: 1048861678

Title:: VIIIth International Congress of Photogrammetry

Sub title:: Stockholm, Sweden, July 17 - 26, 1956

Year of publication:: 1957

Place of publication:: Stockholm

Publisher of the original:: [Verlag nicht ermittelbar]

Identifier (digital):: 1048861678

Language:: English

Other Title:: Paralleltitel: VIIIe Congrès International de Photogrammétrie

Editor:: Fagerholm, P. O.

Corporations:: International Congress of Photogrammetry, 8., 1956, Stockholm; Board of the VIIIth International Congress of Photogrammetry

Adapter:: International Congress of Photogrammetry, 8., 1956, Stockholm; Board of the VIIIth International Congress of Photogrammetry

Founder of work:: International Congress of Photogrammetry, 8., 1956, Stockholm; Board of the VIIIth International Congress of Photogrammetry

Other corporate:: International Congress of Photogrammetry, 8., 1956, Stockholm; Board of the VIIIth International Congress of Photogrammetry

Document type:: Multivolume work

Volume

Persistent identifier:: 1048997715

Title:: General reports

Sub title:: VIIIe Congrès International de Photogrammétrie

Scope:: circa 330 Seiten in verschiedenen Seitenzählungen

Year of publication:: 1957

Place of publication:: Stockholm

Publisher of the original:: [Verlag nicht ermittelbar]

Identifier (digital):: 1048997715

Illustration:: Illustrationen

Signature of the source:: ZS 312(12,3)

Language:: French

Other Title:: Paralleltitel: Rapports généraux

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

Contributor:: Lycken, L. E.; Thunberg, A.; Öhlin, K. A.

Editor:: Fagerholm, P. O.

Corporations:: International Congress of Photogrammetry, 8., 1956, Stockholm; Board of the VIIIth International Congress of Photogrammetry

Adapter:: International Congress of Photogrammetry, 8., 1956, Stockholm; Board of the VIIIth International Congress of Photogrammetry

Founder of work:: International Congress of Photogrammetry, 8., 1956, Stockholm; Board of the VIIIth International Congress of Photogrammetry

Other corporate:: International Congress of Photogrammetry, 8., 1956, Stockholm; Board of the VIIIth International Congress of Photogrammetry

Publisher of the digital copy:: Technische Informationsbibliothek Hannover

Place of publication of the digital copy:: Hannover

Year of publication of the original:: 2019

Document type:: Volume

Collection:: Earth sciences

Chapter

Title:: REPORT OF COMMISSION VII PHOTOGRAPHIC INTERPRETATION to the INTERNATIONAL SOCIETY OF PHOTOGRAMMETRY STOCKHOLM, SWEDEN JULY, 1956

Document type:: Multivolume work

Structure type:: Chapter

Section

Title:: REPORT OF COMMISSION VII NATURAL RESOURCES GEOLOGY

Document type:: Multivolume work

Structure type:: Section

REPORT OF COMMISSION VII GVII-21 SUMMARY NATURAL RESOURCES Geology The use of aerial photography for geologic analysis and mapping continues to be one of the more thriving applications of photographic interpretation. Ac tivity in petroleum prospecting from photography continues at a high level in many parts of the world. The use in prospecting for other mineral resources is also increasing. Also there are a large number of non-commercial programs, aimed at producing geological maps and studies from aerial photographs, in the various countries covered by this report. See Figure 3. MINERAL PROSPECTING In the field of prospecting, detailed information for the areas covered and the techniques used are frequently held as commercial secrets, and are therefore unavailable for a report of this type. However it is well known that most of the large oil companies, as well as geologic branches of the various governments, are actively using photography for this type of work. The French Petroleum Institute is currently engaged in preparing photogeological maps for petroleum prospect ing mainly in the Sahara Desert area, and for mining territories in various over seas areas. Reports from Pakistan indicate that in the search for oil and other minerals a great deal of photogeological prospecting is being carried on by foreign firms. Photography is also being used for metallic mineral prospecting in Norway and Sweden. In the United States, photogeologic prospecting is being continued at an ac celerated rate. In the petroleum field, work is being done, not only by photo graphic interpretation units on the staffs of oil companies, but by various com mercial photogeologic companies and individual consultants. Several oil com panies are directing significant amounts of research effort toward the problem of improving photogeological prospecting techniques. The greatly increased emphasis on uranium prospecting during the reporting period provided a considerable challenge to the photogeologic prospector. In the United States and Canada, consistent use is being made of aerial photography. In the western United States, the Geological Survey made available to prospectors, photo maps principally of scales 1:24,000 or 1:48,000. These were used by prospectors on the ground, and by photographic interpreters, commercial organ izations and photo-interpretation consultants engaged in analyzing aerial pho tography to select outcrop areas in which detailed ground reconnaissance might be promising. This “pinpointing” of areas for terrestrial prospecting was par ticularly valuable in the more rugged areas of the American Rockies and western Canada. Much of the petroleum and uranium prospecting in both the United States and Canada is being accomplished on existing photography of varying scales for reasons of economy. If given a preference however, the photogeologic prospector is often likely to select vertical photography of approximately 1:20,000, with occasional larger scale photography for detailed analysis of specific outcrops. In certain instances color photography was taken from the air and used with some success in locating likely-looking mineral deposits. PHOTOGRAPHY ONE OF THE GEOLOGISTS’ BEST TOOLS In British Colonial Territories, aerial photographs continue to be used as an additional tool in the hands of geologists on the staffs of Geological Survey De-

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