Development of a deep-water carbonate ion concentration proxy based on preservation of planktonic foraminifera shells quantified by X-ray CT scanning
The quantitative and objective characterization of dissolution intensity in fossil planktonic foraminiferal shells could be used to reconstruct past changes in bottom water carbonate ion concentration. Among proxies measuring the degree of dissolution of planktonic foraminiferal shells, X-ray micro-...
Main Authors: | , , |
---|---|
Format: | Dataset |
Language: | English |
Published: |
PANGAEA
2023
|
Subjects: | |
Online Access: | https://doi.pangaea.de/10.1594/PANGAEA.960316 |
id |
ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.960316 |
---|---|
record_format |
openpolar |
spelling |
ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.960316 2023-07-30T04:06:24+02:00 Development of a deep-water carbonate ion concentration proxy based on preservation of planktonic foraminifera shells quantified by X-ray CT scanning Iwasaki, Shinya Kimoto, Katsunori Kucera, Michal MEDIAN LATITUDE: -29.201344 * MEDIAN LONGITUDE: -4.488969 * SOUTH-BOUND LATITUDE: -46.145000 * WEST-BOUND LONGITUDE: -57.556700 * NORTH-BOUND LATITUDE: -24.485000 * EAST-BOUND LONGITUDE: 13.836667 * DATE/TIME START: 1990-03-19T00:00:00 * DATE/TIME END: 2000-01-29T10:32:00 2023 application/zip, 14 datasets https://doi.pangaea.de/10.1594/PANGAEA.960316 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.960316 CC-BY-4.0: Creative Commons Attribution 4.0 International Access constraints: unrestricted info:eu-repo/semantics/openAccess carbonate dissolution Center for Marine Environmental Sciences MARUM planktic foraminifera Dataset 2023 ftpangaea 2023-07-14T05:35:27Z The quantitative and objective characterization of dissolution intensity in fossil planktonic foraminiferal shells could be used to reconstruct past changes in bottom water carbonate ion concentration. Among proxies measuring the degree of dissolution of planktonic foraminiferal shells, X-ray micro-Computed Tomography (CT) based characterization of apparent shell density appears to have good potential to facilitate quantitative reconstruction of carbonate chemistry. To assess the accuracy and reliability of the proxy based on X-ray micro-CT scanning, we evaluated the planktonic foraminiferal shell dissolution intensity using seafloor sediment samples obtained at 13 sites in the South Atlantic Ocean. The sea floor sediment samples are located at water depth ranging between 940 and 4401 m. The data of benthic foraminiferal shell B/Ca ratio in these sediment samples have been measured by previous studies. The CT-based Dissolution Index (CTDX) of four species of planktonic foraminifera (G. bulloides, G. inflata, G. ruber, and T. sacculifer) at each site are provided. We also offered each individual's CT number histogram data, which was used for calculating CTDX. Dataset Planktonic foraminifera South Atlantic Ocean PANGAEA - Data Publisher for Earth & Environmental Science ENVELOPE(-57.556700,13.836667,-24.485000,-46.145000) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
carbonate dissolution Center for Marine Environmental Sciences MARUM planktic foraminifera |
spellingShingle |
carbonate dissolution Center for Marine Environmental Sciences MARUM planktic foraminifera Iwasaki, Shinya Kimoto, Katsunori Kucera, Michal Development of a deep-water carbonate ion concentration proxy based on preservation of planktonic foraminifera shells quantified by X-ray CT scanning |
topic_facet |
carbonate dissolution Center for Marine Environmental Sciences MARUM planktic foraminifera |
description |
The quantitative and objective characterization of dissolution intensity in fossil planktonic foraminiferal shells could be used to reconstruct past changes in bottom water carbonate ion concentration. Among proxies measuring the degree of dissolution of planktonic foraminiferal shells, X-ray micro-Computed Tomography (CT) based characterization of apparent shell density appears to have good potential to facilitate quantitative reconstruction of carbonate chemistry. To assess the accuracy and reliability of the proxy based on X-ray micro-CT scanning, we evaluated the planktonic foraminiferal shell dissolution intensity using seafloor sediment samples obtained at 13 sites in the South Atlantic Ocean. The sea floor sediment samples are located at water depth ranging between 940 and 4401 m. The data of benthic foraminiferal shell B/Ca ratio in these sediment samples have been measured by previous studies. The CT-based Dissolution Index (CTDX) of four species of planktonic foraminifera (G. bulloides, G. inflata, G. ruber, and T. sacculifer) at each site are provided. We also offered each individual's CT number histogram data, which was used for calculating CTDX. |
format |
Dataset |
author |
Iwasaki, Shinya Kimoto, Katsunori Kucera, Michal |
author_facet |
Iwasaki, Shinya Kimoto, Katsunori Kucera, Michal |
author_sort |
Iwasaki, Shinya |
title |
Development of a deep-water carbonate ion concentration proxy based on preservation of planktonic foraminifera shells quantified by X-ray CT scanning |
title_short |
Development of a deep-water carbonate ion concentration proxy based on preservation of planktonic foraminifera shells quantified by X-ray CT scanning |
title_full |
Development of a deep-water carbonate ion concentration proxy based on preservation of planktonic foraminifera shells quantified by X-ray CT scanning |
title_fullStr |
Development of a deep-water carbonate ion concentration proxy based on preservation of planktonic foraminifera shells quantified by X-ray CT scanning |
title_full_unstemmed |
Development of a deep-water carbonate ion concentration proxy based on preservation of planktonic foraminifera shells quantified by X-ray CT scanning |
title_sort |
development of a deep-water carbonate ion concentration proxy based on preservation of planktonic foraminifera shells quantified by x-ray ct scanning |
publisher |
PANGAEA |
publishDate |
2023 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.960316 |
op_coverage |
MEDIAN LATITUDE: -29.201344 * MEDIAN LONGITUDE: -4.488969 * SOUTH-BOUND LATITUDE: -46.145000 * WEST-BOUND LONGITUDE: -57.556700 * NORTH-BOUND LATITUDE: -24.485000 * EAST-BOUND LONGITUDE: 13.836667 * DATE/TIME START: 1990-03-19T00:00:00 * DATE/TIME END: 2000-01-29T10:32:00 |
long_lat |
ENVELOPE(-57.556700,13.836667,-24.485000,-46.145000) |
genre |
Planktonic foraminifera South Atlantic Ocean |
genre_facet |
Planktonic foraminifera South Atlantic Ocean |
op_relation |
https://doi.pangaea.de/10.1594/PANGAEA.960316 |
op_rights |
CC-BY-4.0: Creative Commons Attribution 4.0 International Access constraints: unrestricted info:eu-repo/semantics/openAccess |
_version_ |
1772818992167124992 |