Jarosite formation in deep Antarctic ice provides a window into acidic, water-limited weathering on Mars
- Details
- Category: News
- Created on Monday, 01 February 2021 10:01
Formation of the mineral of jarosite (hydrated iron potassium sulfate) at great depths in Antarctic glaciers has been identified for the first time.
This result was also obtained thanks to the analysis of the powders with XANES, with SYNCROTRON RADIATION, and confirms the hypothesis according to which the sediments rich in jarosite identified on the surface of Mars by NASA's Rover Opportunity, would be linked to the presence of large ice caps that covered part of the red planet in the ancient geological past.
This result was also obtained thanks to the analysis of the powders with XANES, with SYNCROTRON RADIATION, and confirms the hypothesis according to which the sediments rich in jarosite identified on the surface of Mars by NASA's Rover Opportunity, would be linked to the presence of large ice caps that covered part of the red planet in the ancient geological past.
Among the authors Augusto Marcelli (RICMASS)
Identificata per la prima volta la formazione del minerale di jarosite (solfato idrato di ferro e potassio) a grandi profondità nei ghiacciai Antartici.
Questo risultato è stato ottenuto anche grazie all'analisi delle polveri con le XANES, con RADIAZIONE DI SINCROTRONE, e conferma l’ipotesi secondo la quale i sedimenti ricchi di jarosite individuati sulla superficie di Marte dal Rover Opportunity della NASA, sarebbero legati alla presenza di grandi calotte di ghiaccio che hanno coperto parte del pianeta rosso nell’antico passato geologico.
Tra gli autori Augusto Marcelli (RICMASS)
Tra gli autori Augusto Marcelli (RICMASS)
Read article...
See more..