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| Content Provider | Springer Nature Link |
|---|---|
| Author | Yuan, LinXi Sun, LiGuang Fortin, Danielle Wang, YuHong Wu, ZiJun Yin, XueBin |
| Copyright Year | 2009 |
| Abstract | An ancient wood layer dated at about 5600 cal. a BP by AMS$^{14}$C dating was discovered in the intertidal zone, East China Sea. Samples affected by ancient woods, including fresh coast bedrock, weathering bedrock, seepage water from coast, seepage water from ancient wood layer, intertidal seawater, fresh water, beach mud, ancient wood barks and ancient peat, were collected for geochemical analysis. The beach mud and the bacteriogenic iron oxides (BIOS) in coastal seepage water were analyzed by mineralogical and high-resolution transmission electron microscopy (HRTEM)-selected area electron diffraction (SAED) analysis. Inorganic sulfur compositions and δ $^{34}$S of the ancient peat and the beach mud were determined. The results showed that Fe, Mn, S (SO 4 2− ) were enriched in the intertidal area at different levels, very likely caused by fermentation of ancient woods. The presence of abundant ironoxidizing bacteria (FeOB) and sulfate-reducing bacteria (SRB) in this intertidal zone was confirmed by HRTEM-SAED observation, and these bacteria were involved in Fe-S cycle to induce extracellular biomineralization. The negative δ $^{34}$S$_{V-CDT}$ (−2.9‰) likely indicated the biogenic origin of iron-sulfide minerals in the beach mud at high sulfate reduction rate (SRR). These findings are helpful for understanding the biogeochemical Fe-S cycle and biomineralization process at high organic matter deposition rate and high SRR in the intertidal zone, estuary, or near shoreline. |
| Starting Page | 1931 |
| Ending Page | 1940 |
| Page Count | 10 |
| File Format | |
| ISSN | 10016538 |
| Journal | Chinese Science Bulletin |
| Volume Number | 54 |
| Issue Number | 11 |
| e-ISSN | 18619541 |
| Language | English |
| Publisher | SP Science in China Press |
| Publisher Date | 2009-06-02 |
| Publisher Place | Heidelberg |
| Access Restriction | Subscribed |
| Subject Keyword | Intertidal zone ancient wood layer Fe-S minerals iron-oxidizing bacteria (FeOB) sulfate-reducing bacteria (SRB) East China Sea Engineering Earth Sciences Chemistry/Food Science Physics Life Sciences Science |
| Content Type | Text |
| Resource Type | Article |
| Subject | Multidisciplinary |
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