Chemistry and mineralogy of clay minerals in Asian and Saharan dusts and the implications for iron supply to the oceans

Jeong, G. Y.; Achterberg, E. P.

doi:10.5194/acp-14-12415-2014

Articles | Volume 14, issue 22

https://doi.org/10.5194/acp-14-12415-2014

© Author(s) 2014. This work is distributed under
the Creative Commons Attribution 3.0 License.

https://doi.org/10.5194/acp-14-12415-2014

© Author(s) 2014. This work is distributed under
the Creative Commons Attribution 3.0 License.

Articles | Volume 14, issue 22

Research article

|

27 Nov 2014

Research article |

| 27 Nov 2014

Chemistry and mineralogy of clay minerals in Asian and Saharan dusts and the implications for iron supply to the oceans

G. Y. Jeong and E. P. Achterberg

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Cumulative views and downloads (calculated since 17 Jun 2014)

Month	HTML	PDF	XML	Total
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Jul 2014	59	23	0	82
Aug 2014	21	118	1	140
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Nov 2014	66	51	4	121
Dec 2014	104	226	9	339
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Feb 2015	15	40	0	55
Mar 2015	25	11	1	37
Apr 2015	21	43	2	66
May 2015	13	52	0	65
Jun 2015	36	67	22	125
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Short summary

Mineral dust supplies iron to remote oceans, stimulating phytoplankton growth and carbon dioxide decrease. Iron-bearing clay minerals are the dominant phase in mineral dust. However, their mineralogical properties are largely unknown. We first determined microstructures and chemical compositions of the clay minerals in individual dust particles by transmission electron microscopy. Nanocrystalline illite-smectite series clay minerals and iron-rich chlorite are probably important sources of iron.