Atmospheric Chemistry and Physics
Atmospheric Chemistry and Physics
ACP
Articles | Volume 26, issue 17
Articles | Volume 26, issue 17
https://doi.org/10.5194/acp-26-12887-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/acp-26-12887-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 26, issue 17
Research article
 | 
14 Sep 2026
Research article |  | 14 Sep 2026

Ice core insights into the morphology and composition of mineral dust deposited in the tropical Peruvian Andes

Austin M. Weber, Stanislav Kutuzov, Emilie Beaudon, M. Roxana Sierra-Hernández, Mary Davis, Laurel H. Bayless, Don Kenny, and Lonnie G. Thompson

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Short summary
We investigated the physical characteristics (sizes, shapes, and composition) of mineral dust particles preserved in a Peruvian ice core to gain insights into what has been deposited since 1960. We show that the dust originates from a mix of local and distal source areas and note that the information reported in our study has important implications for reconstructing dust emissions and circulation patterns, as well as for estimating the dust’s radiative impacts.
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