The isotopic composition of a planet's key constituents provides valuable insights into its evolutionary history. However, these measurements are influenced by various processes, including surface interactions, atmospheric fractionation, and escape mechanisms, which must be carefully considered for accurate interpretation. Bulk isotopic abundances reveal long-term evolution, while localized and time-resolved measurements shed light on active processes, such as photochemical reactions, that can simultaneously affect multiple species.
Recent isotopic measurements on Mars—spanning hydrogen, carbon, and other elements—offer a wealth of information but also present challenges, with discrepancies in absolute values and variability between instruments and datasets. Understanding these measurements in the context of Earth's isotopic record enhances our ability to draw comparative insights into planetary evolution.
This talk will survey recent findings on isotopic abundances of key species such as H2O, CO2, CO, and organics on Mars and Earth, considering both surface and atmospheric data. For Mars, we will focus on heterogeneous measurements from multiple instruments, including MSL, TGO-NOMAD, TGO-ACS, and MEx-SPICAM. By comparing these datasets across the two planets, we aim to highlight their significance within a framework of comparative planetology and explore the processes shaping their past and present states.
05/03/2025
Speaker: Giuliano Liuzzi, from Università della Basilicata
Date: Wednesday 05 March 2025, at 11:00 AM
Information for attending the seminar in presence:
The seminar will be held in aula IB09 at IAPS-INAF in the Area di Ricerca di Tor Vergata (ARTOV).
Information for attending the seminar in remote:
Link to connect with Zoom: https://us06web.zoom.us/j/81803050318?pwd=aEJ6MTFJU01qdWhJNWowb1pjR1VuZz09
login with your name.
Riunione Zoom details:
ID: 818 0305 0318
Passcode: 749054