Identification of geostructures of continental crust, particularly as they relate to mineral-resource evaluation
The authors have identified the following significant results. As a precursor to the ERTS-1 investigation, the spatial relationship of geostructures seen on Nimbus IDCS photographs to the distribution of mineralized areas in Alaska and western Canada was analyzed to determine the possible metallogen...
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ftnasantrs:oai:casi.ntrs.nasa.gov:19720024698 2023-05-15T13:09:45+02:00 Identification of geostructures of continental crust, particularly as they relate to mineral-resource evaluation Gryc, G. Lathram, E. H. Unclassified, Unlimited, Publicly available Sep 1, 1972 application/pdf http://hdl.handle.net/2060/19720024698 unknown Document ID: 19720024698 Accession ID: 72N32348 http://hdl.handle.net/2060/19720024698 No Copyright CASI GEOPHYSICS E72-10095 NASA-CR-128144 1972 ftnasantrs 2019-07-21T05:41:45Z The authors have identified the following significant results. As a precursor to the ERTS-1 investigation, the spatial relationship of geostructures seen on Nimbus IDCS photographs to the distribution of mineralized areas in Alaska and western Canada was analyzed to determine the possible metallogenic significance of the geostructures. In Canada, mercury and porphyry molybdenum deposits are closely associated with strong northwest-trending fault systems; the development of mineralized regions seems related to major crustal zones or fractures trending southwestward across the Cordillera from the Precambrian shield. In Alaska, comparison of the northeast- and northwest-trending set of possible crustal structures shown on the Nimbus photo, with the distribution of known mineral deposits suggests a similar relationship. The mineralized region of massive sulfides in Prince William Sound and upper Copper River areas and of porphyry coppers in the Nabesna area forms a broad northeast-trending belt possibly related to the Minto Arch on the Shield. The belt of metalliferous deposits in the western Alaska Range follows a comparable northeast trend. Mercury deposits, suggested by many to be fault-controlled, together with most tin and tungsten deposits, occupy a northeast-trending belt between the Bristol Bay-Mackenzie Bay linear and extensions of a linear along the lower Yukon River. This belt intersects the northwest-trending Canadian belt of similar deposits in the Fairbanks area. Other/Unknown Material alaska range Mackenzie Bay Yukon river Alaska Yukon NASA Technical Reports Server (NTRS) Canada Fairbanks Mackenzie Bay ENVELOPE(70.583,70.583,-68.617,-68.617) Yukon |
institution |
Open Polar |
collection |
NASA Technical Reports Server (NTRS) |
op_collection_id |
ftnasantrs |
language |
unknown |
topic |
GEOPHYSICS |
spellingShingle |
GEOPHYSICS Gryc, G. Lathram, E. H. Identification of geostructures of continental crust, particularly as they relate to mineral-resource evaluation |
topic_facet |
GEOPHYSICS |
description |
The authors have identified the following significant results. As a precursor to the ERTS-1 investigation, the spatial relationship of geostructures seen on Nimbus IDCS photographs to the distribution of mineralized areas in Alaska and western Canada was analyzed to determine the possible metallogenic significance of the geostructures. In Canada, mercury and porphyry molybdenum deposits are closely associated with strong northwest-trending fault systems; the development of mineralized regions seems related to major crustal zones or fractures trending southwestward across the Cordillera from the Precambrian shield. In Alaska, comparison of the northeast- and northwest-trending set of possible crustal structures shown on the Nimbus photo, with the distribution of known mineral deposits suggests a similar relationship. The mineralized region of massive sulfides in Prince William Sound and upper Copper River areas and of porphyry coppers in the Nabesna area forms a broad northeast-trending belt possibly related to the Minto Arch on the Shield. The belt of metalliferous deposits in the western Alaska Range follows a comparable northeast trend. Mercury deposits, suggested by many to be fault-controlled, together with most tin and tungsten deposits, occupy a northeast-trending belt between the Bristol Bay-Mackenzie Bay linear and extensions of a linear along the lower Yukon River. This belt intersects the northwest-trending Canadian belt of similar deposits in the Fairbanks area. |
format |
Other/Unknown Material |
author |
Gryc, G. Lathram, E. H. |
author_facet |
Gryc, G. Lathram, E. H. |
author_sort |
Gryc, G. |
title |
Identification of geostructures of continental crust, particularly as they relate to mineral-resource evaluation |
title_short |
Identification of geostructures of continental crust, particularly as they relate to mineral-resource evaluation |
title_full |
Identification of geostructures of continental crust, particularly as they relate to mineral-resource evaluation |
title_fullStr |
Identification of geostructures of continental crust, particularly as they relate to mineral-resource evaluation |
title_full_unstemmed |
Identification of geostructures of continental crust, particularly as they relate to mineral-resource evaluation |
title_sort |
identification of geostructures of continental crust, particularly as they relate to mineral-resource evaluation |
publishDate |
1972 |
url |
http://hdl.handle.net/2060/19720024698 |
op_coverage |
Unclassified, Unlimited, Publicly available |
long_lat |
ENVELOPE(70.583,70.583,-68.617,-68.617) |
geographic |
Canada Fairbanks Mackenzie Bay Yukon |
geographic_facet |
Canada Fairbanks Mackenzie Bay Yukon |
genre |
alaska range Mackenzie Bay Yukon river Alaska Yukon |
genre_facet |
alaska range Mackenzie Bay Yukon river Alaska Yukon |
op_source |
CASI |
op_relation |
Document ID: 19720024698 Accession ID: 72N32348 http://hdl.handle.net/2060/19720024698 |
op_rights |
No Copyright |
_version_ |
1766197417832611840 |