Sedimentology and faunal compositions of surface sediments from the southern Florida Strait, supplement to: Schwarz, Johanna; Rendle-Bühring, Rebecca (2005): Controls on modern carbonate preservation in the southern Florida Straits. Sedimentary Geology, 175, 153-167
The water masses in the Florida Straits and Bahamas region are important sources for the Northern Atlantic surface ocean circulation. In this study, we analyse carbonate preservation in surface sediments located above the chemical lysocline in the Florida Straits and Bahamas region and discuss possi...
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Online Access: | https://dx.doi.org/10.1594/pangaea.738225 https://doi.pangaea.de/10.1594/PANGAEA.738225 |
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ftdatacite:10.1594/pangaea.738225 2023-05-15T13:46:22+02:00 Sedimentology and faunal compositions of surface sediments from the southern Florida Strait, supplement to: Schwarz, Johanna; Rendle-Bühring, Rebecca (2005): Controls on modern carbonate preservation in the southern Florida Straits. Sedimentary Geology, 175, 153-167 Schwarz, Johanna Rendle-Bühring, Rebecca 2005 application/zip https://dx.doi.org/10.1594/pangaea.738225 https://doi.pangaea.de/10.1594/PANGAEA.738225 en eng PANGAEA - Data Publisher for Earth & Environmental Science https://dx.doi.org/10.1016/j.sedgeo.2004.12.024 Creative Commons Attribution 3.0 Unported https://creativecommons.org/licenses/by/3.0/legalcode cc-by-3.0 CC-BY Piston corer Gravity corer Box corer GS7603 OC205-02 P6401 P6408 P6804 P6807 P7008 P7102 TR-149 Gilliss Oceanus Pillsbury Trident Center for Marine Environmental Sciences MARUM Supplementary Collection of Datasets Collection article 2005 ftdatacite https://doi.org/10.1594/pangaea.738225 https://doi.org/10.1016/j.sedgeo.2004.12.024 2022-02-08T16:02:21Z The water masses in the Florida Straits and Bahamas region are important sources for the Northern Atlantic surface ocean circulation. In this study, we analyse carbonate preservation in surface sediments located above the chemical lysocline in the Florida Straits and Bahamas region and discuss possible reasons for supralysoclinal dissolution. Calcite dissolution proxies such as the variation of the foraminiferal assemblage, Fragmentation Index, Benthic Foraminifera Index, and Resistance Index displayed a good preservation in both areas. The pteropod species Limacina inflata showed very good preservation in sediments of inter-platform channels from the Great Bahama Bank (Providence Channel, Exuma Sound) above the aragonite lysocline. Supralysoclinal aragonite dissolution, however, was observed at two water depth levels (800-1000 m and below 1500 m) in the Florida Straits. Our observations suggest that the supralysoclinal dissolution in the Florida Straits is due to the degradation of organic material. The presence of Antarctic Intermediate Water (AAIW) may be a contributing factor for the significant aragonite dissolution in 800-1000 m. The comparison of modern preservation patterns of the surface sediments with hydrographical measurements shows that the L. inflata Dissolution Index (LDX) might be an adequate proxy to reconstruct paleo-water mass conditions in an area which is highly saturated with respect to calcium carbonate. Article in Journal/Newspaper Antarc* Antarctic DataCite Metadata Store (German National Library of Science and Technology) Antarctic Trident ENVELOPE(169.233,169.233,-72.433,-72.433) |
institution |
Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
English |
topic |
Piston corer Gravity corer Box corer GS7603 OC205-02 P6401 P6408 P6804 P6807 P7008 P7102 TR-149 Gilliss Oceanus Pillsbury Trident Center for Marine Environmental Sciences MARUM |
spellingShingle |
Piston corer Gravity corer Box corer GS7603 OC205-02 P6401 P6408 P6804 P6807 P7008 P7102 TR-149 Gilliss Oceanus Pillsbury Trident Center for Marine Environmental Sciences MARUM Schwarz, Johanna Rendle-Bühring, Rebecca Sedimentology and faunal compositions of surface sediments from the southern Florida Strait, supplement to: Schwarz, Johanna; Rendle-Bühring, Rebecca (2005): Controls on modern carbonate preservation in the southern Florida Straits. Sedimentary Geology, 175, 153-167 |
topic_facet |
Piston corer Gravity corer Box corer GS7603 OC205-02 P6401 P6408 P6804 P6807 P7008 P7102 TR-149 Gilliss Oceanus Pillsbury Trident Center for Marine Environmental Sciences MARUM |
description |
The water masses in the Florida Straits and Bahamas region are important sources for the Northern Atlantic surface ocean circulation. In this study, we analyse carbonate preservation in surface sediments located above the chemical lysocline in the Florida Straits and Bahamas region and discuss possible reasons for supralysoclinal dissolution. Calcite dissolution proxies such as the variation of the foraminiferal assemblage, Fragmentation Index, Benthic Foraminifera Index, and Resistance Index displayed a good preservation in both areas. The pteropod species Limacina inflata showed very good preservation in sediments of inter-platform channels from the Great Bahama Bank (Providence Channel, Exuma Sound) above the aragonite lysocline. Supralysoclinal aragonite dissolution, however, was observed at two water depth levels (800-1000 m and below 1500 m) in the Florida Straits. Our observations suggest that the supralysoclinal dissolution in the Florida Straits is due to the degradation of organic material. The presence of Antarctic Intermediate Water (AAIW) may be a contributing factor for the significant aragonite dissolution in 800-1000 m. The comparison of modern preservation patterns of the surface sediments with hydrographical measurements shows that the L. inflata Dissolution Index (LDX) might be an adequate proxy to reconstruct paleo-water mass conditions in an area which is highly saturated with respect to calcium carbonate. |
format |
Article in Journal/Newspaper |
author |
Schwarz, Johanna Rendle-Bühring, Rebecca |
author_facet |
Schwarz, Johanna Rendle-Bühring, Rebecca |
author_sort |
Schwarz, Johanna |
title |
Sedimentology and faunal compositions of surface sediments from the southern Florida Strait, supplement to: Schwarz, Johanna; Rendle-Bühring, Rebecca (2005): Controls on modern carbonate preservation in the southern Florida Straits. Sedimentary Geology, 175, 153-167 |
title_short |
Sedimentology and faunal compositions of surface sediments from the southern Florida Strait, supplement to: Schwarz, Johanna; Rendle-Bühring, Rebecca (2005): Controls on modern carbonate preservation in the southern Florida Straits. Sedimentary Geology, 175, 153-167 |
title_full |
Sedimentology and faunal compositions of surface sediments from the southern Florida Strait, supplement to: Schwarz, Johanna; Rendle-Bühring, Rebecca (2005): Controls on modern carbonate preservation in the southern Florida Straits. Sedimentary Geology, 175, 153-167 |
title_fullStr |
Sedimentology and faunal compositions of surface sediments from the southern Florida Strait, supplement to: Schwarz, Johanna; Rendle-Bühring, Rebecca (2005): Controls on modern carbonate preservation in the southern Florida Straits. Sedimentary Geology, 175, 153-167 |
title_full_unstemmed |
Sedimentology and faunal compositions of surface sediments from the southern Florida Strait, supplement to: Schwarz, Johanna; Rendle-Bühring, Rebecca (2005): Controls on modern carbonate preservation in the southern Florida Straits. Sedimentary Geology, 175, 153-167 |
title_sort |
sedimentology and faunal compositions of surface sediments from the southern florida strait, supplement to: schwarz, johanna; rendle-bühring, rebecca (2005): controls on modern carbonate preservation in the southern florida straits. sedimentary geology, 175, 153-167 |
publisher |
PANGAEA - Data Publisher for Earth & Environmental Science |
publishDate |
2005 |
url |
https://dx.doi.org/10.1594/pangaea.738225 https://doi.pangaea.de/10.1594/PANGAEA.738225 |
long_lat |
ENVELOPE(169.233,169.233,-72.433,-72.433) |
geographic |
Antarctic Trident |
geographic_facet |
Antarctic Trident |
genre |
Antarc* Antarctic |
genre_facet |
Antarc* Antarctic |
op_relation |
https://dx.doi.org/10.1016/j.sedgeo.2004.12.024 |
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.738225 https://doi.org/10.1016/j.sedgeo.2004.12.024 |
_version_ |
1766241015488839680 |