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| Main Authors: | , , , |
|---|---|
| Format: | Dataset Open Access |
| Language: | en |
| Published: |
PANGAEA
2023
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| Subjects: | |
| Online Access: | https://doi.org/10.1594/PANGAEA.960120 |
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Table of Contents:
- The chemical composition of sediments at various levels inside core 710KH also show a clear distinction between the overlying calcareous, siliceous-bearing to siliceous-rich muds and the underlaying dark brown clay. In particular, the dark brown clay is characterized by significantly higher contents of Mn, Fe, Co, Ni, Cu, Zn, Mg and P and lower contents of Ca and Ba than the overlying sediments. This distribution of elements probably reflects the presence of abundant micronodules, a lower content of barite and an almost complete absence of carbonate tests in the dark brown clays. The P content of the dark brown clays is higher than that of other typical deep-sea sediments from the equatorial N. Pacific or the SW Pacific. The organic-carbon content of the sediments is generally low and decreases from 0.3 to 0.1% with depth in the core.