Preliminary Geochemical Prospecting of Thermal Sources around Lake Vanda, Dry Valley, Antarctica
Preliminary geochemical prospecting of thermal sources around Lake Vanda, Dry Valley, was carried out using mercury. Twentythree samples, taken from around the lake, were analyzed. Values range from 1.1 to 169 ppb, with 50 ppb average. For comparison, 89 samples from Don Juan DVDP 5A, Taylor Valley...
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National Institute of Polar Research
1977
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Online Access: | https://doi.org/10.15094/00007912 https://doaj.org/article/b3d56db266c64717b168c9b1963718d0 |
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fttriple:oai:gotriple.eu:oai:doaj.org/article:b3d56db266c64717b168c9b1963718d0 2023-05-15T13:43:39+02:00 Preliminary Geochemical Prospecting of Thermal Sources around Lake Vanda, Dry Valley, Antarctica Akito KOGA 1977-03-01 https://doi.org/10.15094/00007912 https://doaj.org/article/b3d56db266c64717b168c9b1963718d0 en other eng National Institute of Polar Research doi:10.15094/00007912 0085-7289 2432-079X https://doaj.org/article/b3d56db266c64717b168c9b1963718d0 undefined Antarctic Record, Iss 58, Pp 138-144 (1977) geo Journal Article https://vocabularies.coar-repositories.org/resource_types/c_6501/ 1977 fttriple https://doi.org/10.15094/00007912 2023-01-22T18:58:29Z Preliminary geochemical prospecting of thermal sources around Lake Vanda, Dry Valley, was carried out using mercury. Twentythree samples, taken from around the lake, were analyzed. Values range from 1.1 to 169 ppb, with 50 ppb average. For comparison, 89 samples from Don Juan DVDP 5A, Taylor Valley DVDP 11 and around Syowa Station were also analyzed, obtaining the average values 6, 12, 10 ppb, respectively. Mercury measurements in soil, clay and rock samples would be a new technique which can be used to locate areas of geothermal activity, even in an extremely cold region such as Antarctica. Mercury values are usually proportional to the underground temperature in a geothermal area. Thus, the Lake Vanda area with rather high mercury contents would suggest the existence of a thermal source under the ground, strongly supporting the occurrence of some hydrothermal minerals around the lake. It is, however, still uncertain whether the heat supply has continued up to date or not. In order to gain further information on geothermal sources around Lake Vanda, more detailed murcury survey would be required. Article in Journal/Newspaper Antarc* Antarctica Unknown Lake Vanda ENVELOPE(161.600,161.600,-77.517,-77.517) Syowa Station Taylor Valley ENVELOPE(163.000,163.000,-77.617,-77.617) Vanda ENVELOPE(161.550,161.550,-77.533,-77.533) |
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Open Polar |
collection |
Unknown |
op_collection_id |
fttriple |
language |
English |
topic |
geo |
spellingShingle |
geo Akito KOGA Preliminary Geochemical Prospecting of Thermal Sources around Lake Vanda, Dry Valley, Antarctica |
topic_facet |
geo |
description |
Preliminary geochemical prospecting of thermal sources around Lake Vanda, Dry Valley, was carried out using mercury. Twentythree samples, taken from around the lake, were analyzed. Values range from 1.1 to 169 ppb, with 50 ppb average. For comparison, 89 samples from Don Juan DVDP 5A, Taylor Valley DVDP 11 and around Syowa Station were also analyzed, obtaining the average values 6, 12, 10 ppb, respectively. Mercury measurements in soil, clay and rock samples would be a new technique which can be used to locate areas of geothermal activity, even in an extremely cold region such as Antarctica. Mercury values are usually proportional to the underground temperature in a geothermal area. Thus, the Lake Vanda area with rather high mercury contents would suggest the existence of a thermal source under the ground, strongly supporting the occurrence of some hydrothermal minerals around the lake. It is, however, still uncertain whether the heat supply has continued up to date or not. In order to gain further information on geothermal sources around Lake Vanda, more detailed murcury survey would be required. |
format |
Article in Journal/Newspaper |
author |
Akito KOGA |
author_facet |
Akito KOGA |
author_sort |
Akito KOGA |
title |
Preliminary Geochemical Prospecting of Thermal Sources around Lake Vanda, Dry Valley, Antarctica |
title_short |
Preliminary Geochemical Prospecting of Thermal Sources around Lake Vanda, Dry Valley, Antarctica |
title_full |
Preliminary Geochemical Prospecting of Thermal Sources around Lake Vanda, Dry Valley, Antarctica |
title_fullStr |
Preliminary Geochemical Prospecting of Thermal Sources around Lake Vanda, Dry Valley, Antarctica |
title_full_unstemmed |
Preliminary Geochemical Prospecting of Thermal Sources around Lake Vanda, Dry Valley, Antarctica |
title_sort |
preliminary geochemical prospecting of thermal sources around lake vanda, dry valley, antarctica |
publisher |
National Institute of Polar Research |
publishDate |
1977 |
url |
https://doi.org/10.15094/00007912 https://doaj.org/article/b3d56db266c64717b168c9b1963718d0 |
long_lat |
ENVELOPE(161.600,161.600,-77.517,-77.517) ENVELOPE(163.000,163.000,-77.617,-77.617) ENVELOPE(161.550,161.550,-77.533,-77.533) |
geographic |
Lake Vanda Syowa Station Taylor Valley Vanda |
geographic_facet |
Lake Vanda Syowa Station Taylor Valley Vanda |
genre |
Antarc* Antarctica |
genre_facet |
Antarc* Antarctica |
op_source |
Antarctic Record, Iss 58, Pp 138-144 (1977) |
op_relation |
doi:10.15094/00007912 0085-7289 2432-079X https://doaj.org/article/b3d56db266c64717b168c9b1963718d0 |
op_rights |
undefined |
op_doi |
https://doi.org/10.15094/00007912 |
_version_ |
1766191507455344640 |