geochemical characterization of dust from the Talos Dome ice core ...

• Main Author: Di Stefano, Elena
• Format: Article in Journal/Newspaper
• Language: unknown
• Published: Università di Siena 2021
• Subjects: GEO/04 GEOGRAFIA FISICA E GEOMORFOLOGIA; Antarctic; Talos Dome; The Antarctic; Antarc*; ice core
• Online Access: https://dx.doi.org/10.25434/di-stefano-elena_phd2021; https://usiena-air.unisi.it/handle/11365/1140455

Polar ice cores contain many proxies, of which mineral dust is a key one in understanding past climate variability. In fact, dust and climate have a strong influence on each other. Dust has both direct and indirect effects on climate by interacting with solar radiation and influencing cloud formation processes, while climate itself can strongly affect production, transport and deposition of dust. For example, it is well known that dust fluxes respond to the transition from glacial to interglacial regimes. Deposition of dust on the Antarctic continent is controlled by a number of climatic and environmental factors, and a reliable reconstruction of the dust record is essential to understand how these factors have changed in the past. But evidence has shown that, at certain depths in the ice, the dust record may be subjected to some degree of alteration. This work was conceived with the main objective of enhancing our comprehension of deep ice processes through the use of an array of different techniques ...