Zeng, Zhiwei; Dang, Haowen; Zhang, Hongrui; Bao, Zhian; Yu, Xun; Li, Chen; Bu, Mingyuan; Zhang, Peng; Zhou, Xiaoli; Jian, Zhimin (2025): Mg isotopic composition of cold-water bamboo corals from the South China Sea [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.983405, In: Zeng, Z et al. (2025): The Mg isotopic and elemental composition of cold-water bamboo corals from the South China Sea [dataset bundled publication]. PANGAEA, https://doi.org/10.1594/PANGAEA.983404
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Published: 2025-12-31 • DOI registered: 2026-02-03
Abstract:
The data in this sheet present magnesium isotopic composition obtained from micro-drilled powder samples of cold-water corals analyzed by multiple collector inductively coupled plasma mass spectrometry (MC-ICP-MS) and corresponding elemental compositions by laser ablation inductively coupled plasma (LA-ICP-MS). Micro-drilling was performed across distinct growth stages in three specimens to investigate how Mg isotopic variations reflect magnesium incorporation mechanisms in different growth structures. Sampling position represents each measurement point's distance relative to the growth central axis.
Coverage:
Median Latitude: 16.920000 * Median Longitude: 112.906667 * South-bound Latitude: 16.550000 * West-bound Longitude: 110.710000 * North-bound Latitude: 17.640000 * East-bound Longitude: 117.120000
Date/Time Start: 2018-05-13T12:05:00 * Date/Time End: 2020-08-25T15:42:00
Minimum Elevation: -2583.7 m * Maximum Elevation: -1119.3 m
Event(s):
SY067-7 * Latitude: 16.570000 * Longitude: 110.710000 * Date/Time: 2018-05-13T12:05:00 * Elevation: -1408.8 m * Campaign: ST03 * Basis: Tansuo-2 * Method/Device: Human Occupied Vehicle (HOV)
SY185-2 * Latitude: 16.550000 * Longitude: 110.890000 * Date/Time: 2019-07-31T15:34:00 * Elevation: -1119.3 m * Campaign: TS12-02 * Basis: Tansuo-2 * Method/Device: Human Occupied Vehicle (HOV)
SY268-10 * Latitude: 17.640000 * Longitude: 117.120000 * Date/Time: 2020-08-25T15:42:00 * Elevation: -2583.7 m * Campaign: TS2-1-3 * Basis: Tansuo-2 * Method/Device: Human Occupied Vehicle (HOV)
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Event label | Event | Zeng, Zhiwei | |||
| 2 | Latitude of event | Latitude | Zeng, Zhiwei | |||
| 3 | Longitude of event | Longitude | Zeng, Zhiwei | |||
| 4 | Date/Time of event | Date/Time | Zeng, Zhiwei | |||
| 5 | Sample code/label | Sample label | Zeng, Zhiwei | |||
| 6 | Distance | Dist | mm | Zeng, Zhiwei | Measurement point's distance relative to the growth central axis | |
| 7 | Structure | Structure | Zeng, Zhiwei | |||
| 8 | δ26Mg | δ26Mg | ‰ | Zeng, Zhiwei | Multiple collector inductively-coupled plasma mass spectrometer (MC-ICP-MS) | |
| 9 | δ26Mg, standard deviation | δ26Mg std dev | ± | Zeng, Zhiwei | Multiple collector inductively-coupled plasma mass spectrometer (MC-ICP-MS) | 2sd |
| 10 | δ25Mg | δ25Mg | ‰ | Zeng, Zhiwei | Multiple collector inductively-coupled plasma mass spectrometer (MC-ICP-MS) | |
| 11 | δ25Mg, standard deviation | δ25Mg std dev | ± | Zeng, Zhiwei | Multiple collector inductively-coupled plasma mass spectrometer (MC-ICP-MS) | 2sd |
| 12 | Magnesium/Calcium ratio | Mg/Ca | mmol/mol | Zeng, Zhiwei | Laser Ablation Inductively Coupled Mass Spectrometer (LA-ICP-MS) | |
| 13 | Boron/Calcium ratio | B/Ca | µmol/mol | Zeng, Zhiwei | Laser Ablation Inductively Coupled Mass Spectrometer (LA-ICP-MS) | |
| 14 | Strontium/Calcium ratio | Sr/Ca | mmol/mol | Zeng, Zhiwei | Laser Ablation Inductively Coupled Mass Spectrometer (LA-ICP-MS) | |
| 15 | Barium/Calcium ratio | Ba/Ca | µmol/mol | Zeng, Zhiwei | Laser Ablation Inductively Coupled Mass Spectrometer (LA-ICP-MS) |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0) (License comes into effect after moratorium ends)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
121 data points