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| Main Author: | |
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| Format: | Dataset Open Access |
| Language: | en |
| Published: |
PANGAEA
2026
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| Subjects: | |
| Online Access: | https://doi.org/10.1594/PANGAEA.991220 |
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| _version_ | 1867172216348606464 |
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| author | Hall, Ellen |
| author_facet | Hall, Ellen |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | Twelve reef sediment cores were collected on the leeward reef slope of Clerke Island, QLD, Australia via manual percussion coring on SCUBA in August of 2014. Each of these sediment cores were then divided into 5 cm subsections and sieved to collect clasts >4 mm. The genus of coral clasts >4 mm within each subsection were identified. To temporally constrain the changes in community composition, U-Th dating was conducted on samples within each core. Samples were cut, crushed and cleaned then grains of pure aragonite were selected under a binocular microscope for dating purposes. Analysis occurred at the University of Queensland's Radiogenic Isotope Facility in mid 2021 using a Nu Plasma I Multi-collector Inductively Coupled Plasma Mass Spectrometer. |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_991220 |
| institution | PANGAEA |
| language | en |
| publishDate | 2026 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | U-Th dating of sediment cores collected in 2014 on the reef slope of Clerke Island, Australia Hall, Ellen Age; Age, 230Thorium, corrected; Age, 230Thorium, uncorrected; Age, dated; Age, dated, standard deviation; Age, standard deviation; CLES1C1; CLES1C2; CLES1C3; CLES1C4; CLES2C1; CLES2C2; CLES2C3; CLES2C4; CLES3C1; CLES3C2; CLES3C3; CLES3C4; Comment; community composition; Coral; Coral Sea; Corrected; dating; DEPTH, sediment/rock; Depth comment; Event label; Laboratory code/label; Latitude of event; Longitude of event; Manual percussion coring conducted on SCUBA; MC-ICP-MS; Multi-collector inductively coupled plasma mass spectrometer (MC-ICP-MS); Sample code/label; Sediment core; Thorium, standard deviation; Thorium-230/Thorium-232 activity ratio; Thorium-230/Thorium-232 activity ratio, standard deviation; Thorium-230/Uranium-238 activity ratio; Thorium-230/Uranium-238 activity ratio, standard deviation; Thorium-232; Uranium; Uranium, standard deviation; Uranium-234/Uranium-238 activity ratio; Uranium-234/Uranium-238 activity ratio, standard deviation; Uranium-234/Uranium-238 activity ratio (0); Uranium-234/Uranium-238 activity ratio (0), standard deviation; U-Th; Year of experiment Twelve reef sediment cores were collected on the leeward reef slope of Clerke Island, QLD, Australia via manual percussion coring on SCUBA in August of 2014. Each of these sediment cores were then divided into 5 cm subsections and sieved to collect clasts >4 mm. The genus of coral clasts >4 mm within each subsection were identified. To temporally constrain the changes in community composition, U-Th dating was conducted on samples within each core. Samples were cut, crushed and cleaned then grains of pure aragonite were selected under a binocular microscope for dating purposes. Analysis occurred at the University of Queensland's Radiogenic Isotope Facility in mid 2021 using a Nu Plasma I Multi-collector Inductively Coupled Plasma Mass Spectrometer. |
| title | U-Th dating of sediment cores collected in 2014 on the reef slope of Clerke Island, Australia |
| topic | Age; Age, 230Thorium, corrected; Age, 230Thorium, uncorrected; Age, dated; Age, dated, standard deviation; Age, standard deviation; CLES1C1; CLES1C2; CLES1C3; CLES1C4; CLES2C1; CLES2C2; CLES2C3; CLES2C4; CLES3C1; CLES3C2; CLES3C3; CLES3C4; Comment; community composition; Coral; Coral Sea; Corrected; dating; DEPTH, sediment/rock; Depth comment; Event label; Laboratory code/label; Latitude of event; Longitude of event; Manual percussion coring conducted on SCUBA; MC-ICP-MS; Multi-collector inductively coupled plasma mass spectrometer (MC-ICP-MS); Sample code/label; Sediment core; Thorium, standard deviation; Thorium-230/Thorium-232 activity ratio; Thorium-230/Thorium-232 activity ratio, standard deviation; Thorium-230/Uranium-238 activity ratio; Thorium-230/Uranium-238 activity ratio, standard deviation; Thorium-232; Uranium; Uranium, standard deviation; Uranium-234/Uranium-238 activity ratio; Uranium-234/Uranium-238 activity ratio, standard deviation; Uranium-234/Uranium-238 activity ratio (0); Uranium-234/Uranium-238 activity ratio (0), standard deviation; U-Th; Year of experiment |
| url | https://doi.org/10.1594/PANGAEA.991220 |