Dissolution of biogenic carbonates: Effects of skeletal structure
Dissolution of biogenic shallow-water carbonates exposed on deep-sea moorings indicates that skeletal structure is important for the rate of disintegration of biogenic carbonates, besides mineralogy and grain size of particles. The aragonites and high Mg-calcites used represent a wide spectrum of mi...
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Elsevier
1986
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Online Access: | https://oceanrep.geomar.de/id/eprint/33233/ https://oceanrep.geomar.de/id/eprint/33233/7/Henrich_Wefer.pdf https://doi.org/10.1016/0025-3227(86)90077-0 |
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ftoceanrep:oai:oceanrep.geomar.de:33233 2023-05-15T16:02:32+02:00 Dissolution of biogenic carbonates: Effects of skeletal structure Henrich, Rüdiger Wefer, Gerold 1986 text https://oceanrep.geomar.de/id/eprint/33233/ https://oceanrep.geomar.de/id/eprint/33233/7/Henrich_Wefer.pdf https://doi.org/10.1016/0025-3227(86)90077-0 en eng Elsevier https://oceanrep.geomar.de/id/eprint/33233/7/Henrich_Wefer.pdf Henrich, R. and Wefer, G. (1986) Dissolution of biogenic carbonates: Effects of skeletal structure . Marine Geology, 71 (3-4). pp. 341-362. DOI 10.1016/0025-3227(86)90077-0 <https://doi.org/10.1016/0025-3227%2886%2990077-0>. doi:10.1016/0025-3227(86)90077-0 info:eu-repo/semantics/restrictedAccess Article PeerReviewed 1986 ftoceanrep https://doi.org/10.1016/0025-3227(86)90077-0 2023-04-07T15:26:17Z Dissolution of biogenic shallow-water carbonates exposed on deep-sea moorings indicates that skeletal structure is important for the rate of disintegration of biogenic carbonates, besides mineralogy and grain size of particles. The aragonites and high Mg-calcites used represent a wide spectrum of mineralogies and types of skeletal framework. The particles were deployed at different water depths on a mooring in the Drake Passage for 52 days. Weight loss curves for the various types of particles show the relative importance of the different structural factors for the disintegration of these biogenic carbonates. Organic coatings, intraskeletal pore spaces, and sizes and shapes of individual crystallites in the skeletons may be more important than carbonate mineralogy and particle size in cases. The presence of internal sediments, cement aggregates and natural contaminations and of diatoms incorporated during growth into carbonate skeletons, strongly influence the disintegration of the skeletal materials. The first step of particle disintegration is the selective removal of impurities. This step is analogous to a “cleaning” of specimens. It is succeeded by initial dissolution, by strong dissolution and finally by disintegration. Article in Journal/Newspaper Drake Passage OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) Drake Passage Marine Geology 71 3-4 341 362 |
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OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) |
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ftoceanrep |
language |
English |
description |
Dissolution of biogenic shallow-water carbonates exposed on deep-sea moorings indicates that skeletal structure is important for the rate of disintegration of biogenic carbonates, besides mineralogy and grain size of particles. The aragonites and high Mg-calcites used represent a wide spectrum of mineralogies and types of skeletal framework. The particles were deployed at different water depths on a mooring in the Drake Passage for 52 days. Weight loss curves for the various types of particles show the relative importance of the different structural factors for the disintegration of these biogenic carbonates. Organic coatings, intraskeletal pore spaces, and sizes and shapes of individual crystallites in the skeletons may be more important than carbonate mineralogy and particle size in cases. The presence of internal sediments, cement aggregates and natural contaminations and of diatoms incorporated during growth into carbonate skeletons, strongly influence the disintegration of the skeletal materials. The first step of particle disintegration is the selective removal of impurities. This step is analogous to a “cleaning” of specimens. It is succeeded by initial dissolution, by strong dissolution and finally by disintegration. |
format |
Article in Journal/Newspaper |
author |
Henrich, Rüdiger Wefer, Gerold |
spellingShingle |
Henrich, Rüdiger Wefer, Gerold Dissolution of biogenic carbonates: Effects of skeletal structure |
author_facet |
Henrich, Rüdiger Wefer, Gerold |
author_sort |
Henrich, Rüdiger |
title |
Dissolution of biogenic carbonates: Effects of skeletal structure |
title_short |
Dissolution of biogenic carbonates: Effects of skeletal structure |
title_full |
Dissolution of biogenic carbonates: Effects of skeletal structure |
title_fullStr |
Dissolution of biogenic carbonates: Effects of skeletal structure |
title_full_unstemmed |
Dissolution of biogenic carbonates: Effects of skeletal structure |
title_sort |
dissolution of biogenic carbonates: effects of skeletal structure |
publisher |
Elsevier |
publishDate |
1986 |
url |
https://oceanrep.geomar.de/id/eprint/33233/ https://oceanrep.geomar.de/id/eprint/33233/7/Henrich_Wefer.pdf https://doi.org/10.1016/0025-3227(86)90077-0 |
geographic |
Drake Passage |
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Drake Passage |
genre |
Drake Passage |
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Drake Passage |
op_relation |
https://oceanrep.geomar.de/id/eprint/33233/7/Henrich_Wefer.pdf Henrich, R. and Wefer, G. (1986) Dissolution of biogenic carbonates: Effects of skeletal structure . Marine Geology, 71 (3-4). pp. 341-362. DOI 10.1016/0025-3227(86)90077-0 <https://doi.org/10.1016/0025-3227%2886%2990077-0>. doi:10.1016/0025-3227(86)90077-0 |
op_rights |
info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/10.1016/0025-3227(86)90077-0 |
container_title |
Marine Geology |
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71 |
container_issue |
3-4 |
container_start_page |
341 |
op_container_end_page |
362 |
_version_ |
1766398200132927488 |