Heat flow measurements in the Weddell Sea, supplement to: Nagao, Toshiyasu (1990): Heat flow measurements in the Weddell Sea, Antarctica: ODP Leg 113. In: Barker, PF; Kennett, JP; et al. (eds.), Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 113
From January to March 1987, heat flow measurements were tried at four sites (Sites 689, 690, 695, and 696) during ODP Leg 113, in the Weddell Sea, Antarctica. At Site 690 (Maud Rise), a convex upward shaped temperature vs. depth profile was observed. This profile cannot be explained by steady-state...
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ftdatacite:10.1594/pangaea.726376 2023-05-15T13:40:55+02:00 Heat flow measurements in the Weddell Sea, supplement to: Nagao, Toshiyasu (1990): Heat flow measurements in the Weddell Sea, Antarctica: ODP Leg 113. In: Barker, PF; Kennett, JP; et al. (eds.), Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 113 Nagao, Toshiyasu 1990 application/zip https://dx.doi.org/10.1594/pangaea.726376 https://doi.pangaea.de/10.1594/PANGAEA.726376 en eng PANGAEA - Data Publisher for Earth & Environmental Science https://dx.doi.org/10.2973/odp.proc.sr.113.183.1990 Creative Commons Attribution 3.0 Unported https://creativecommons.org/licenses/by/3.0/legalcode cc-by-3.0 CC-BY Drilling/drill rig Leg113 Joides Resolution Ocean Drilling Program ODP Supplementary Collection of Datasets Collection article 1990 ftdatacite https://doi.org/10.1594/pangaea.726376 https://doi.org/10.2973/odp.proc.sr.113.183.1990 2022-02-08T16:24:46Z From January to March 1987, heat flow measurements were tried at four sites (Sites 689, 690, 695, and 696) during ODP Leg 113, in the Weddell Sea, Antarctica. At Site 690 (Maud Rise), a convex upward shaped temperature vs. depth profile was observed. This profile cannot be explained by steady-state conduction through solid materials only. We conclude that the minimum heat flow value at Site 690 is 45 mW/m2. A prominent bottom simulating reflector (BSR) was observed at 600 mbsf at Site 695. However, the observed temperature is too high to explain the BSR as a gas hydrate. The origin of the BSR remains unknown, although it is probably of biogenic origin as observed in the Bering Sea during DSDP Leg 19. After correcting for the effects of sedimentation, heat flow values at Sites 695 and 696 are 69 and 63 mW/m2, respectively. Furthermore, we compiled heat flow data south of 50°S. In the Weddell Sea region, the eastern part shows relatively low heat flow in comparison with the western part, with the boundary between them at about 15°W longitude. Article in Journal/Newspaper Antarc* Antarctica Bering Sea Weddell Sea DataCite Metadata Store (German National Library of Science and Technology) Weddell Sea Bering Sea Weddell Maud Rise ENVELOPE(3.000,3.000,-66.000,-66.000) Kennett ENVELOPE(-65.167,-65.167,-67.117,-67.117) |
institution |
Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
English |
topic |
Drilling/drill rig Leg113 Joides Resolution Ocean Drilling Program ODP |
spellingShingle |
Drilling/drill rig Leg113 Joides Resolution Ocean Drilling Program ODP Nagao, Toshiyasu Heat flow measurements in the Weddell Sea, supplement to: Nagao, Toshiyasu (1990): Heat flow measurements in the Weddell Sea, Antarctica: ODP Leg 113. In: Barker, PF; Kennett, JP; et al. (eds.), Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 113 |
topic_facet |
Drilling/drill rig Leg113 Joides Resolution Ocean Drilling Program ODP |
description |
From January to March 1987, heat flow measurements were tried at four sites (Sites 689, 690, 695, and 696) during ODP Leg 113, in the Weddell Sea, Antarctica. At Site 690 (Maud Rise), a convex upward shaped temperature vs. depth profile was observed. This profile cannot be explained by steady-state conduction through solid materials only. We conclude that the minimum heat flow value at Site 690 is 45 mW/m2. A prominent bottom simulating reflector (BSR) was observed at 600 mbsf at Site 695. However, the observed temperature is too high to explain the BSR as a gas hydrate. The origin of the BSR remains unknown, although it is probably of biogenic origin as observed in the Bering Sea during DSDP Leg 19. After correcting for the effects of sedimentation, heat flow values at Sites 695 and 696 are 69 and 63 mW/m2, respectively. Furthermore, we compiled heat flow data south of 50°S. In the Weddell Sea region, the eastern part shows relatively low heat flow in comparison with the western part, with the boundary between them at about 15°W longitude. |
format |
Article in Journal/Newspaper |
author |
Nagao, Toshiyasu |
author_facet |
Nagao, Toshiyasu |
author_sort |
Nagao, Toshiyasu |
title |
Heat flow measurements in the Weddell Sea, supplement to: Nagao, Toshiyasu (1990): Heat flow measurements in the Weddell Sea, Antarctica: ODP Leg 113. In: Barker, PF; Kennett, JP; et al. (eds.), Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 113 |
title_short |
Heat flow measurements in the Weddell Sea, supplement to: Nagao, Toshiyasu (1990): Heat flow measurements in the Weddell Sea, Antarctica: ODP Leg 113. In: Barker, PF; Kennett, JP; et al. (eds.), Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 113 |
title_full |
Heat flow measurements in the Weddell Sea, supplement to: Nagao, Toshiyasu (1990): Heat flow measurements in the Weddell Sea, Antarctica: ODP Leg 113. In: Barker, PF; Kennett, JP; et al. (eds.), Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 113 |
title_fullStr |
Heat flow measurements in the Weddell Sea, supplement to: Nagao, Toshiyasu (1990): Heat flow measurements in the Weddell Sea, Antarctica: ODP Leg 113. In: Barker, PF; Kennett, JP; et al. (eds.), Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 113 |
title_full_unstemmed |
Heat flow measurements in the Weddell Sea, supplement to: Nagao, Toshiyasu (1990): Heat flow measurements in the Weddell Sea, Antarctica: ODP Leg 113. In: Barker, PF; Kennett, JP; et al. (eds.), Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 113 |
title_sort |
heat flow measurements in the weddell sea, supplement to: nagao, toshiyasu (1990): heat flow measurements in the weddell sea, antarctica: odp leg 113. in: barker, pf; kennett, jp; et al. (eds.), proceedings of the ocean drilling program, scientific results, college station, tx (ocean drilling program), 113 |
publisher |
PANGAEA - Data Publisher for Earth & Environmental Science |
publishDate |
1990 |
url |
https://dx.doi.org/10.1594/pangaea.726376 https://doi.pangaea.de/10.1594/PANGAEA.726376 |
long_lat |
ENVELOPE(3.000,3.000,-66.000,-66.000) ENVELOPE(-65.167,-65.167,-67.117,-67.117) |
geographic |
Weddell Sea Bering Sea Weddell Maud Rise Kennett |
geographic_facet |
Weddell Sea Bering Sea Weddell Maud Rise Kennett |
genre |
Antarc* Antarctica Bering Sea Weddell Sea |
genre_facet |
Antarc* Antarctica Bering Sea Weddell Sea |
op_relation |
https://dx.doi.org/10.2973/odp.proc.sr.113.183.1990 |
op_rights |
Creative Commons Attribution 3.0 Unported https://creativecommons.org/licenses/by/3.0/legalcode cc-by-3.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1594/pangaea.726376 https://doi.org/10.2973/odp.proc.sr.113.183.1990 |
_version_ |
1766143197985112064 |