Vinciane Debaille

U-Pb and 40Ar-39Ar geochronology and Nd isotope geochemistry of the Kribi Alkaline Igneous Complex, South Cameroon: Petrogenesis, Nb-Zr-REE enrichment and late Pan-African evolution

Joseph Martial Akame, Marc Poujol, Gilles Ruffet, Karen Fontijn et autres

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Initial survey of blue ice areas for the recovery of old ice in the Sør Rondane mountains (Dronning Maud Land, East Antarctica)

Maaike Izeboud, Étienne Legrain, Veronica Tollenaar, François Pallandre et autres

Blue ice areas have the potential to preserve old ice near the surface, offering valuable archives of past climate beyond the range of continuous deep ice cores. Notably, million-year-old ice has been recovered at shallow depths in the Allan Hills blue ice …

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The returned sample science of the samples collected by NASA Perseverance rover at Jezero Crater, Mars

Sandra Siljeström, Chris D. K. Herd, Tanja Bosak, Ken Farley et autres

Mars 2020 Perseverance rover is currently exploring Jezero Crater on Mars, which contains an ancient lake-delta fan system. Since its landing in 2021 the rover has investigated different parts of the Jezero crater including the crater floor, the delta fan, the crater …

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False negatives in the search for extraterrestrial life

I. L. ten Kate, Mickaël Baqué, Vinciane Debaille, John Lee Grenfell et autres

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False negatives in the search for extraterrestrial life

Inge Loes ten Kate, Mickaël Baqué, Vinciane Debaille, John Lee Grenfell et autres

One of the central goals of astrobiology is to test the hypothesis that extraterrestrial life exists. In practice, this means seeking imperfect proxies for life, or ‘biosignatures’. Experience shows that ambiguous and contestable results are common in this field. Many astrobiologists are …

Terrestrial formation of calcium sulfate and carbonate assemblages in Atacama CO chondrites: Implications for Martian evaporitic environments

Gabriel A. Pinto, Vinciane Debaille, J. Eschrig, Alexandre Corgne et autres

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Terrestrial formation of calcium sulfate and carbonate assemblages in Atacama CO chondrites: Implications for Martian evaporitic environments

Gabriel Pinto, Vinciane Debaille, J. Eschrig, Alexandre Corgne et autres

Evaporites are frequently reported in carbonaceous chondrites from hot and cold deserts, yet their origin remains debated between formation on the parent body or by post-fall terrestrial alteration. Here, we present a systematic characterization of Ca sulfate and Ca carbonate assemblages in …

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High flow capacity and Low Viscosity of the Seitah Formation, at Jezero Crater, Mars

Adrian Brown, Linda Kah, R. C. Wiens, Patrick Pinet et autres

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Initial survey of blue ice areas for the recovery of old ice in the Sør Rondane mountains (Dronning Maud Land, East Antarctica)

Maaike Izeboud, Étienne Legrain, Veronica Tollenaar, François Pallandre et autres

Blue ice areas have the potential to preserve old ice near the surface, offering valuable archives of past climate beyond the range of continuous deep ice cores. Notably, million-year-old ice has been recovered at shallow depths in the Allan Hills blue ice …

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Moderately volatile isotopes in CB and CH chondrites

Vinciane Debaille, Guillaume FLORIN, Jérôme Roland, Steven Goderis

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Linking cosmic spherules to samples returned from the Itokawa, Ryugu, and Bennu asteroids: constraints from major-element chemistry and triple oxygen isotopes

Lisa Krämer Ruggiu, Marie Raf Fien JONKHEERE, Johan Villeneuve, Vinciane Debaille et autres

Introduction: Micrometeorites (MMs) represent the dominant mass influx of extraterrestrial (ET) material to Earth, delivering tens of thousands of tons annually [1,2].Unlike meteorites, which are biased toward larger, mechanically robust fragments, MMs capture a broader diversity of parent bodies and sample reservoirs …

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Use of PCA and machine learning to classify ungrouped iron meteorites and predict affinity to CC or NC reservoirs

Florian Dumas, Vinciane Debaille, Steven Goderis

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