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Li, Zhiyao; Qianghu, Liu (2024): Paleontological records in the northern margin of the South China Sea during Eocene-Oligocene Transition period [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.969556

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Published: 2024-07-25 • DOI registered: 2024-08-23

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Abstract:
A total of 444 mudstone samples were colected from 6 boreholes located in the northemn margin of the south China Sea. These samples represent a sedimentary succession ranging from the Eocene to the Oligocene, which was conducted for palynological analysis. To assure the acquisition of trustworthy paleoenvironmental data, we performed thorough selection on the debris samples, focusing on primary mudtone debris larger than 10mm. Prior to sample processing, an akali treatment (using NaOH) was applied to all samples, followed by sieving to eliminate coarse sediment particles. Subsequently, the hydrochloric acid (36% HCI), hydrofluoritc acid (20% HF) and acetolysis were utilized to extract organic material. Resulting residues, having passed through a 10μm sieve, were meticulously spread onto slides with 50% glycerine, enabling species identification and count of pollen and spores under an optical microscope.
Keyword(s):
Algae records; Eocene-Oligocene Transition.; South China Sea; Spore-pollen records
Funding:
National Natural Science Foundation of China (NSFC), grant/award no. 41902112
Coverage:
Median Latitude: 20.586133 * Median Longitude: 114.249000 * South-bound Latitude: 19.426300 * West-bound Longitude: 112.089000 * North-bound Latitude: 22.594500 * East-bound Longitude: 117.054000
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Size:
6 datasets

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Datasets listed in this publication series

  1. Li, Z; Qianghu, L (2024): Paleontological records in the northern margin of the South China Sea during Eocene-Oligocene Transition period, sediment core P-1. https://doi.org/10.1594/PANGAEA.969555
  2. Li, Z; Qianghu, L (2024): Paleontological records in the northern margin of the South China Sea during Eocene-Oligocene Transition period, sediment core P-4. https://doi.org/10.1594/PANGAEA.969558
  3. Li, Z; Qianghu, L (2024): Paleontological records in the northern margin of the South China Sea during Eocene-Oligocene Transition period, sediment core P-7. https://doi.org/10.1594/PANGAEA.969559
  4. Li, Z; Qianghu, L (2024): Paleontological records in the northern margin of the South China Sea during Eocene-Oligocene Transition period, sediment core P-10. https://doi.org/10.1594/PANGAEA.969560
  5. Li, Z; Qianghu, L (2024): Paleontological records in the northern margin of the South China Sea during Eocene-Oligocene Transition period, sediment core P-17. https://doi.org/10.1594/PANGAEA.969562
  6. Li, Z; Qianghu, L (2024): Paleontological records in the northern margin of the South China Sea during Eocene-Oligocene Transition period, sediment core P-18. https://doi.org/10.1594/PANGAEA.969563