{
  "abstract": "Mars is reputed to lack ongoing volcanic activity. However, marsquakes were revealed recently, and clues to volcanism younger than tens of million years have accumulated. While sulfur dioxide, so far undetected, could testify to ongoing eruptive activity, evidence of active magma chambers may be better identified by seepage of halogen gases, such as hydrogen chloride (HCl). Observations by Atmospheric Chemistry Suite led to the widespread observations of HCl at part-per-billion levels in the atmosphere of Mars during the warm perihelion period, attributed to aerosol-atmospheric sources. Here, we report HCl detections during the cold aphelion season that are isolated in the Alba Mons region. We also identify fresh and narrow (<1 meter) fissures in this area, which we interpret to be potential HCl pathways rooted into magmatic bodies at depth. Our results are best explained by ongoing igneous processes in the Martian interior.",
  "abstract_shown": true,
  "affiliations": [
    "Space Research Institute RAS, Profsoyuznaya 84/32, Moscow 117997, Russia.",
    "Centrum Badań Kosmicznych Polskiej Akademii Nauk (CBK PAN), Bartycka 18A, 00-716 Warszawa, Poland.",
    "Physikalisches Institut, Universität Bern, Bern, Switzerland.",
    "Department of Physics, University of Oxford, Oxford OX1 3PU, UK.",
    "German Aerospace Center (DLR), Institute of Planetary Research, Berlin, Germany.",
    "LATMOS/CNRS, Université Paris-Saclay, Sorbonne Université, Guyancourt, France.",
    "Research School of Astronomy and Astrophysics, Australian National University, Canberra, Australia.",
    "School of Physical Sciences, The Open University, Milton Keynes, UK.",
    "Instituto de Astrofisica de Andalucia, Granada, Spain.",
    "Main Astronomical Observatory (MAO), National Academy of Sciences of Ukraine, Kiev, Ukraine.",
    "Astronomical Observatory of Padova, INAF, Padova, Italy."
  ],
  "article_type": "Research Article",
  "arxiv": null,
  "author_total": 21,
  "authors": [
    {
      "affs": [
        0
      ],
      "name": "Alexander Trokhimovskiy",
      "orcid": "0000-0003-4041-4972"
    },
    {
      "affs": [
        1,
        2
      ],
      "name": "Daniel Mège"
    },
    {
      "affs": [
        0
      ],
      "name": "Oleg Korablev",
      "orcid": "0000-0003-1115-0656"
    },
    {
      "affs": [
        3
      ],
      "name": "Kevin S. Olsen",
      "orcid": "0000-0002-2173-9889"
    },
    {
      "affs": [
        0
      ],
      "name": "Anna A. Fedorova",
      "orcid": "0000-0002-4176-2955"
    },
    {
      "affs": [
        4
      ],
      "name": "Benjamin Taysum",
      "orcid": "0000-0002-0856-4340"
    },
    {
      "affs": [
        1
      ],
      "name": "Pierre-Antoine Tesson",
      "orcid": "0000-0003-2597-4592"
    },
    {
      "affs": [
        0
      ],
      "name": "Mikhail Luginin",
      "orcid": "0000-0002-4434-0213"
    },
    {
      "affs": [
        5
      ],
      "name": "Franck Montmessin",
      "orcid": "0000-0002-4187-1457"
    },
    {
      "affs": [
        0
      ],
      "name": "Pavel Vlasov",
      "orcid": "0000-0003-0063-9333"
    },
    {
      "affs": [
        6
      ],
      "name": "Alexey Grigoriev",
      "orcid": "0000-0003-1331-1986"
    },
    {
      "affs": [
        7,
        8
      ],
      "name": "Juan Alday",
      "orcid": "0000-0003-1459-3444"
    },
    {
      "affs": [
        0
      ],
      "name": "Denis Belyaev",
      "orcid": "0000-0003-1123-5983"
    },
    {
      "affs": [
        0
      ],
      "name": "Nikolay Ignatiev",
      "orcid": "0000-0002-6358-7094"
    },
    {
      "affs": [
        0
      ],
      "name": "Andrey Patrakeev",
      "orcid": "0000-0003-3587-5758"
    },
    {
      "affs": [
        0
      ],
      "name": "Nikita Kokonkov",
      "orcid": "0000-0002-7616-7291"
    },
    {
      "affs": [
        9
      ],
      "name": "Yuriy Ivanov",
      "orcid": "0009-0003-4507-9226"
    },
    {
      "affs": [
        1
      ],
      "name": "Joanna Gurgurewicz",
      "orcid": "0000-0001-9792-3220"
    },
    {
      "affs": [
        2
      ],
      "name": "Antoine Pommerol",
      "orcid": "0000-0002-9165-9243"
    },
    {
      "affs": [
        10
      ],
      "name": "Gabriele Cremonese",
      "orcid": "0000-0001-9021-1140"
    },
    {
      "affs": [
        2
      ],
      "name": "Nicolas Thomas",
      "orcid": "0000-0002-0146-0071"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/6b1m5gzm0g2r6.bib",
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  "doi": "10.1126/sciadv.aeb9422",
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  "metadata_licence": null,
  "native_subjects": [
    [
      "heading",
      "Atmospheric Science"
    ],
    [
      "heading",
      "Earth, Environmental, Ecological, and Space Sciences"
    ],
    [
      "heading",
      "Planetary Science"
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  "pmcid": "PMC13733797",
  "pmid": "42981399",
  "published": "2026-11-04",
  "publisher": "American Association for the Advancement of Science (AAAS)",
  "ris": "https://research.draconitic.com/paper/6b1m5gzm0g2r6.ris",
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  "subjects": [
    {
      "field": "earth",
      "origin": "heading:Atmospheric Science",
      "subfield": "atmospheric"
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  ],
  "title": "Enigmatic HCl detections as a potential signature of igneous activity on Mars",
  "title_text": "Enigmatic HCl detections as a potential signature of igneous activity on Mars",
  "type": "peer-reviewed",
  "updated_at": "2026-11-08T12:23:30Z",
  "url": "https://research.draconitic.com/paper/6b1m5gzm0g2r6",
  "venue": "Science Advances",
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}