Aqueous alteration processes in Jezero crater, Mars—implications for organic geochemistry

The Perseverance rover landed in Jezero crater, Mars, in February 2021. We used the Scanning Habitable Environments with Raman and Luminescence for Organics and Chemicals (SHERLOC) instrument to perform deep-ultraviolet Raman and fluorescence spectroscopy of three rocks within the crater. We identify evidence for two distinct ancient aqueous environments at different times. Reactions with liquid water formed carbonates in an olivine-rich igneous rock. A sulfate-perchlorate mixture is present in the rocks, which probably formed by later modifications of the rocks by brine. Fluorescence signatures consistent with aromatic organic compounds occur throughout these rocks and are preserved in minerals related to both aqueous environments

The 'Sound' Phenomenon Paradigm as Musical and Educational Challenge

Sound phenomenon is an object studied in different fields of scientific knowledge: from the formation of Universal structures to a person's inner world. Command of sound's culture (in different epochs, peoples, musical directions, styles and schools) presents different images of the world in its correlation to a human. That is why mastering the culture of sound in performance and composing practices Achieving this aim can only be possible under one condition: the sound phenomenon and worldview are treated in the framework of paradigm approach. That is when models of sound and the outlook reflect common stance in posing problems by the society and understanding the ways of their treatment. This poses the problem of researching sound phenomenon paradigm shift and outlook as a complex process before musical education theory (Glazyrina, 2001). It is impossible to consider the sound phenomenon in theory of musical training out of context of understandings and attitudes of this or that artistic epoch (direction, style)-artistic and aesthetical concepts, theories of musical training, values and ideals, sound images and so on. However, it should be taken into account that in musical training, culture and art the shift of sound paradigms is much more complex than in science. That is why theory of musical training while studying the repertoire of concepts, technologies and teaching methods in the offgoing sequence of sound phenomenon paradigms should focus on their philosophical content. (C) 2018 Published by Future Academy www.FutureAcademy.org.U

Aqueous alteration processes in Jezero crater, Mars-implications for organic geochemistry

The Perseverance rover landed in Jezero crater, Mars, in February 2021. We used the Scanning Habitable Environments with Raman and Luminescence for Organics and Chemicals (SHERLOC) instrument to perform deep-ultraviolet Raman and fluorescence spectroscopy of three rocks within the crater. We identify evidence for two distinct ancient aqueous environments at different times. Reactions with liquid water formed carbonates in an olivine-rich igneous rock. A sulfate-perchlorate mixture is present in the rocks, which probably formed by later modifications of the rocks by brine. Fluorescence signatures consistent with aromatic organic compounds occur throughout these rocks and are preserved in minerals related to both aqueous environments

SuperCam on the Perseverance Rover for Exploration of Jezero Crater: Remote LIBS, VISIR, Raman, and Time-Resolved Luminescence Spectroscopies Plus Micro-Imaging and Acoustics

International audienc