Heat Flow in the Arctic
Defines heat flow as the flux at the earth's solid surface of heat conducted from the interior; the heat-flow-unit (hfu) is on the order of 1-millionth calorie through each sq cm of the surface/sec, which is enough to melt a 4-mm layer of ice over the earth's surface/yr. Earth heat origina...
Published in: | ARCTIC |
---|---|
Main Authors: | , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
The Arctic Institute of North America
1969
|
Subjects: | |
Online Access: | https://journalhosting.ucalgary.ca/index.php/arctic/article/view/66272 |
id |
ftunivcalgaryojs:oai:journalhosting.ucalgary.ca:article/66272 |
---|---|
record_format |
openpolar |
spelling |
ftunivcalgaryojs:oai:journalhosting.ucalgary.ca:article/66272 2023-05-15T14:19:20+02:00 Heat Flow in the Arctic Lachenbruch, Arthur H. Marshall, B. Vaughn 1969-01-01 application/pdf https://journalhosting.ucalgary.ca/index.php/arctic/article/view/66272 eng eng The Arctic Institute of North America https://journalhosting.ucalgary.ca/index.php/arctic/article/view/66272/50185 https://journalhosting.ucalgary.ca/index.php/arctic/article/view/66272 ARCTIC; Vol. 22 No. 3 (1969): September: 169–364; 300-311 1923-1245 0004-0843 Radionuclides info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion research-article 1969 ftunivcalgaryojs 2022-03-22T21:23:12Z Defines heat flow as the flux at the earth's solid surface of heat conducted from the interior; the heat-flow-unit (hfu) is on the order of 1-millionth calorie through each sq cm of the surface/sec, which is enough to melt a 4-mm layer of ice over the earth's surface/yr. Earth heat originates from radioactive decay of U, Th and K in the crust and mantle. Although land heat-flow measurements in the Arctic are too few for regional interpretation, those from Cape Thompson, Barrow and Cape Simpson, Northern Alaska are discussed and figured to show what they contribute to understanding of permafrost, climatic change and shoreline movements. Measuring thermal conductivity and gradient is much simpler in ocean basins than on land. Locations of such measurements are mapped, the results for the Alaskan quadrant in more detail. The sharp change in heat flow at the edge of the Alpha Cordillera, shown in a geothermal model, suggests that this feature is a huge accumulation of basalt, rather than mantle material or remnant of a foundering continent as previously postulated. Future Arctic heat flow studies are discussed. Article in Journal/Newspaper Arctic Arctic Barrow Ice permafrost Alaska University of Calgary Journal Hosting Alpha Cordillera ENVELOPE(-125.000,-125.000,85.500,85.500) Arctic Cape Simpson ENVELOPE(-87.066,-87.066,67.351,67.351) ARCTIC 22 3 |
institution |
Open Polar |
collection |
University of Calgary Journal Hosting |
op_collection_id |
ftunivcalgaryojs |
language |
English |
topic |
Radionuclides |
spellingShingle |
Radionuclides Lachenbruch, Arthur H. Marshall, B. Vaughn Heat Flow in the Arctic |
topic_facet |
Radionuclides |
description |
Defines heat flow as the flux at the earth's solid surface of heat conducted from the interior; the heat-flow-unit (hfu) is on the order of 1-millionth calorie through each sq cm of the surface/sec, which is enough to melt a 4-mm layer of ice over the earth's surface/yr. Earth heat originates from radioactive decay of U, Th and K in the crust and mantle. Although land heat-flow measurements in the Arctic are too few for regional interpretation, those from Cape Thompson, Barrow and Cape Simpson, Northern Alaska are discussed and figured to show what they contribute to understanding of permafrost, climatic change and shoreline movements. Measuring thermal conductivity and gradient is much simpler in ocean basins than on land. Locations of such measurements are mapped, the results for the Alaskan quadrant in more detail. The sharp change in heat flow at the edge of the Alpha Cordillera, shown in a geothermal model, suggests that this feature is a huge accumulation of basalt, rather than mantle material or remnant of a foundering continent as previously postulated. Future Arctic heat flow studies are discussed. |
format |
Article in Journal/Newspaper |
author |
Lachenbruch, Arthur H. Marshall, B. Vaughn |
author_facet |
Lachenbruch, Arthur H. Marshall, B. Vaughn |
author_sort |
Lachenbruch, Arthur H. |
title |
Heat Flow in the Arctic |
title_short |
Heat Flow in the Arctic |
title_full |
Heat Flow in the Arctic |
title_fullStr |
Heat Flow in the Arctic |
title_full_unstemmed |
Heat Flow in the Arctic |
title_sort |
heat flow in the arctic |
publisher |
The Arctic Institute of North America |
publishDate |
1969 |
url |
https://journalhosting.ucalgary.ca/index.php/arctic/article/view/66272 |
long_lat |
ENVELOPE(-125.000,-125.000,85.500,85.500) ENVELOPE(-87.066,-87.066,67.351,67.351) |
geographic |
Alpha Cordillera Arctic Cape Simpson |
geographic_facet |
Alpha Cordillera Arctic Cape Simpson |
genre |
Arctic Arctic Barrow Ice permafrost Alaska |
genre_facet |
Arctic Arctic Barrow Ice permafrost Alaska |
op_source |
ARCTIC; Vol. 22 No. 3 (1969): September: 169–364; 300-311 1923-1245 0004-0843 |
op_relation |
https://journalhosting.ucalgary.ca/index.php/arctic/article/view/66272/50185 https://journalhosting.ucalgary.ca/index.php/arctic/article/view/66272 |
container_title |
ARCTIC |
container_volume |
22 |
container_issue |
3 |
_version_ |
1766291040122175488 |