Evolution of recent volcanic ash deposits under native and planted temperate forests in Patagonia, Argentina

This dataset originates from a research entitled: "Evolution of recent volcanic ash deposits under native and planted temperate forests in Patagonia, Argentina" , this study investigates the initial evolution of volcanic ash deposited by the Chaitén volcano in the Andean-Patagonian Region of Argentina and how different vegetation types influence its transformation. The research is part of a broader project titled "Soil neoformation and edaphic changes associated with conifer plantation in areas affected by recent volcanic eruptions."

To conduct this study, four sampling sites were selected along a west-east transect, where pine ponderosa plantations border native Cordillera cypress forests. Fifteen years later of the eruption undisturbed soil profile samples were collected for micromorphological analyses, while disturbed ash samples underwent physical, chemical, and biological assessments. Additionally, two ash samples from the May 2008 eruption were preserved and utilized as reference materials.

The dataset provides a description of the micromorphological characteristics of the ash and soil under different vegetation (cypress forests and pine plantations). Data obtained from the physical-chemical and biological analyses of the ash at the time of fall and fifteen years after its deposition are also provided. These data contribute valuable insights into post-eruption soil formation processes and the role of vegetation in modifying volcanic deposits.

For accessibility, the dataset has been deposited in Mendelay Data repository, ensuring transparency and reproducibility for future research. Proper citation and linking within academic publications facilitate integration into broader studies on soil evolution and volcanic ash dynamics.