{
  "abstract": "The Variscan rock record of the French Massif Central (FMC) provides compelling evidence for early Carboniferous crust-mantle interaction during subduction and exhumation of continental high-pressure metamorphic units, but the underlying geodynamic mechanisms remain elusive. The crustal pressure-temperature-time-fluid evolution during this interaction is investigated through a case study of a high-pressure mafic granulite, integrating petrology, phase equilibrium modelling, trace element thermometry, and U-Pb geochronology. Partial replacement of garnet-clinopyroxene-plagioclase-rutile assemblage by amphibole and titanite records hydration and pronounced cooling from ~900-975 • C to ~700-800 • C, under limited decompression from ~13 to 11 kbar. The age of this event is constrained at 354.6 ± 4.6[8.5] Ma by U-Pb dating of titanite. Subsequent ilmenite-clinopyroxene pseudomorphs after titanite indicate further decompression below ~9 kbar. The minimum age of this decompression is given by apatite and rutile U-Pb dates of 348.5 ± 2.6[8.5] Ma and 337.9 ± 1.7[7.0] Ma, respectively. The FMC granulites are associated with mantle rocks, and the inferred P-T conditions compare with those of mantle xenoliths from volcanic regions worldwide, suggesting an interaction with the mantle during exhumation. One-dimensional thermal models of crustal translithospheric diapirs consistently predict cooling in the shallow lithospheric mantle within the ranges 700-1000 • C and 10-15 kbar. Therefore, the peak conditions and subsequent cooling could result from the thermal interaction of a crustal diapir and the mantle. We propose a new petrogenetic model for the FMC where translithospheric diapirs play a central role.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": null,
  "author_total": 14,
  "authors": [
    {
      "name": "Luc de Hoÿm de Marien"
    },
    {
      "name": "Pavla Štípská"
    },
    {
      "name": "Petra Maierová"
    },
    {
      "name": "Pavel Pitra"
    },
    {
      "name": "Karel Schulmann"
    },
    {
      "name": "Andrew Kylander-Clark"
    },
    {
      "name": "Dimitrios Moutzouris"
    },
    {
      "name": "Vít Peřestý"
    },
    {
      "name": "Philippe Yamato"
    },
    {
      "name": "Simon Couzinié"
    },
    {
      "name": "Radek Škoda"
    },
    {
      "name": "Martin Racek"
    },
    {
      "name": "Nikol Novotná"
    },
    {
      "name": "Jonas Vanardois"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/91bf1fwgn4338.bib",
  "cited_by": 0,
  "doi": "10.1016/j.epsl.2026.120333",
  "fulltext_url": null,
  "id": "91bf1fwgn4338",
  "issns": [
    "0012-821X"
  ],
  "landing_url": "https://insu.hal.science/insu-05766646v1",
  "language": "en",
  "licence": "CC-BY-4.0",
  "licence_label": "CC BY 4.0",
  "licence_source": "article",
  "licence_url": "https://creativecommons.org/licenses/by/4.0/",
  "metadata_licence": null,
  "native_subjects": [
    [
      "hal",
      "0.sdu"
    ],
    [
      "hal",
      "1.sdu.stu"
    ],
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      "hal",
      "2.sdu.stu.pe"
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      "hal",
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    [
      "openalex",
      "1908|Geological and Geochemical Analysis"
    ]
  ],
  "openalex": "W7213905940",
  "pdf_url": "https://insu.hal.science/insu-05766646/document",
  "pmcid": null,
  "pmid": null,
  "published": "2026-09-28",
  "publisher": "Elsevier",
  "ris": "https://research.draconitic.com/paper/91bf1fwgn4338.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:17:42Z",
      "native_id": "insu-05766646",
      "source": "hal",
      "url": "https://insu.hal.science/insu-05766646v1"
    }
  ],
  "subjects": [
    {
      "field": "earth",
      "origin": "hal:2.sdu.stu.pe",
      "subfield": "geology-geochemistry"
    },
    {
      "field": "earth",
      "origin": "hal:2.sdu.stu.te",
      "subfield": "geophysics"
    }
  ],
  "title": "Thermal evolution of a translithospheric diapir, evidence from a high-pressure granulite (French Massif Central)",
  "title_text": "Thermal evolution of a translithospheric diapir, evidence from a high-pressure granulite (French Massif Central)",
  "type": "peer-reviewed",
  "updated_at": "2026-10-30T12:17:42Z",
  "url": "https://research.draconitic.com/paper/91bf1fwgn4338",
  "venue": "Earth and Planetary Science Letters",
  "versions": []
}