United States

methane

magnesite

sri lanka

serpentine

habitability

mars

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AAPT WM22

Join AAPT and Physics Educators worldwide in developing and strengthening your professional connections by attending the 2021 AAPT Virtual Summer Meeting. AAPT meetings are a great way to reflect on your teaching, recommit to best practices and re-energize your career with new research, products, and techniques.

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AAPT SM21

Serpentinization highlights the intersection of habitability and geology in comparative planetology. Its significance is enhanced for Mars from orbital nuclear spectroscopy evidence for more mafic crustal chemistry compared to Earth. This may also enable serpentinization to sequester crustal water, possibly complementing phyllosilicate minerals considered recently. However, despite numerous serpentine zones across Earth’s continents, detailed analog studies are limited to a few formations such as the ophiolites in Oman. Meanwhile, autochthonous soils at Sri Lanka’s serpentine zone provide the first laboratory evidence that perchlorates, found across in situ sites on Mars, can facilitate the release of biohazardous cations from soil into brines. The presence of variably developed soils across Sri Lanka’s serpentine zone offers a planetary end-case reference for pedogenesis in serpentinites. Furthermore, several thermal springs near this zone can elucidate fluid chemistry from meteoric waters percolating through serpentinites, significant to paleo-Martian conditions when a surface hydrosphere may have existed.</p>

Mars, Lanka and Habitability: Serpentinization as a Thread of Life

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https://d3smihljt9218e.cloudfront.net/transcript/30639/subtitle/f080e00a15c0ecfd58d20a9d0738116c.vtt

English (automatic)

Mars, Lanka and Habitability: Serpentinization as a Thread of Life

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