Iwasaki Shinya siwasaki@ees.hokudai.ac.jp 0000-0001-8011-6107 Kimoto K Okazaki Y 0000-0002-2406-3466 Ikehara M 0000-0002-2695-4713 2023 X-ray micro-CT scanning of planktic foraminiferal tests dataset https://doi.org/10.1594/PANGAEA.895520 2023-08-11T06:13:19 Evaluation of foraminiferal test dissolution in deep-sea sediments facilitates reconstruction of seawater chemistry. Here we observed test dissolution processes of the planktic foraminifera Globigerinoides sacculifer, Globigerinoides ruber, and Neogloboquadrina dutertrei from mid-latitudes of the western North Pacific, and tested the ability of a new dissolution index using data from X-ray micro-computed tomography scanning. Although the dissolution process of foraminiferal tests differed slightly among species, dissolution of all species was equally assessed by the calcite density distribution (%Low-CT-number calcite volume) calculated from the CT number histogram. Furthermore, the correlation between the %Low-CT-number calcite volume of tests and the deep seawater calcite saturation state suggests that XMCT scanning is an appropriate tool for evaluating the intensity of foraminiferal test dissolution in the mid-latitudes of the North Pacific. The %Low-CT-number calcite volume of foraminiferal tests can be an invaluable proxy for the quantitative reconstruction of the deep seawater carbonate ion concentrations during glacial-interglacial periods. Iwasaki Shinya siwasaki@ees.hokudai.ac.jp 0000-0001-8011-6107 Kimoto K Okazaki Y 0000-0002-2406-3466 Ikehara M 0000-0002-2695-4713 2019 Micro-CT Scanning of Tests of Three Planktic Foraminiferal Species to Clarify DissolutionProcess and Progress journal article Geochemistry, Geophysics, Geosystems 20(12) https://doi.org/10.1029/2019GC008456 6051-6065 133.466667 138.683333 29.216667 33.766667 135.79166675 31.060416874999994 -4006.0 -2221.0 not specified KH16-6-2 33.766667 137.6 -2221.0 MultiCorer MUC KH16-6-3 32.666667 138.566667 -3079.0 MultiCorer MUC KH16-6-5 32.166667 138.683333 -3267.0 MultiCorer MUC KH16-6-6 32.466667 137.433333 -4006.0 MultiCorer MUC KH16-6-9 29.333333 133.516667 -2922.0 MultiCorer MUC KS15-4-1 29.416667 133.516667 -2863.0 MultiCorer MUC KS15-4-2 29.216667 133.466667 -3218.0 MultiCorer MUC KS15-4-3 29.45 133.55 -2792.0 MultiCorer MUC 656 CC-BY-4.0 Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/ Event label Event Iwasaki Shinya siwasaki@ees.hokudai.ac.jp 0000-0001-8011-6107 Event Latitude of event Latitude Iwasaki Shinya siwasaki@ees.hokudai.ac.jp 0000-0001-8011-6107 Latitude Longitude of event Longitude Iwasaki Shinya siwasaki@ees.hokudai.ac.jp 0000-0001-8011-6107 Longitude Elevation of event Elevation m Iwasaki Shinya siwasaki@ees.hokudai.ac.jp 0000-0001-8011-6107 Elevation [m] File name File name Iwasaki Shinya siwasaki@ees.hokudai.ac.jp 0000-0001-8011-6107 File name File format File format Iwasaki Shinya siwasaki@ees.hokudai.ac.jp 0000-0001-8011-6107 File format File size File size kByte size http://purl.obolibrary.org/obo/PATO_0000117 Iwasaki Shinya siwasaki@ees.hokudai.ac.jp 0000-0001-8011-6107 File size [kByte] Uniform resource locator/link to file URL file Iwasaki Shinya siwasaki@ees.hokudai.ac.jp 0000-0001-8011-6107 URL file citable author26930 author67032 author67033 author67034 event2894855 event2894856 event2894857 event2894858 event2894859 event2894860 event2894861 event2894862 geocode1600 geocode1601 geocode8128 journal6006 license21 method10668 param16143 param16144 param25541 param54251 pi67032 ref102109 term1073204 topotype1