Jean-Guillaume Feignon

Jean-Guillaume Feignon
University of Vienna | UniWien · Department of Lithospheric Research

MSc in Volcanology

About

18
Publications
4,179
Reads
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116
Citations
Citations since 2016
18 Research Items
116 Citations
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20162017201820192020202120220102030405060
20162017201820192020202120220102030405060
Introduction
Exploring volcanoes of the world since 2005 Worked at Laboratoire Magmas et Volcans and Blaise Pascal University from 2010 to 2017 (Clermont-Ferrand, France) and writing a research article on Mocho-Choshuenco volcano (Chile) melt inclusions analysis. Currently working on a PhD at Vienna University, Department für Lithosphärenforschung, about the Chicxulub impact crater. Director of the European Volcanological Association (L.A.V.E.)
Additional affiliations
January 2015 - June 2015
Université Clermont Auvergne
Position
  • Master's Student Internship
Description
  • Characterization and analysis of pyroclastic deposits and melt inclusions of 1750 and 1020 BP eruptions of Mocho-Choshuenco volcano, Chile. Supervisors : Olivier Roche, Pierre Schiano, Séverine Moune and Nicolas Cluzel
September 2014 - January 2015
Université Clermont Auvergne
Position
  • Tutoring first year (BSc) students in Earth Sciences
Description
  • Giving courses to 1st year students in Earth Science to help them
April 2014 - June 2014
Université Clermont Auvergne
Position
  • Master's Student Internship
Description
  • Reasearch project : Analysis of volcanic glass contained in MD11-3349 core sampled offshore La Réunion Island and datation. Supervisor : Patrick Bachèlery
Education
September 2013 - June 2015
Université Clermont Auvergne
Field of study
  • Volcanology
September 2010 - June 2013
Université Clermont Auvergne
Field of study
  • Earth Sciences, Geology
September 2007 - June 2010
Lycée Merleau-Ponty, Rochefort-Sur-Mer, France
Field of study
  • Life and Earth Sciences

Publications

Publications (18)
Article
Impact events that create complex craters excavate mid- to lower-crustal rocks, offering a unique perspective on the interior composition and internal dynamics of planetary bodies. On the Yucatán Peninsula, Mexico, the surface geology mainly consists of ~3 km thick sedimentary rocks, with a lack of exposure of crystalline basement in many areas. Co...
Article
Full-text available
Mocho-Choshuenco volcano has produced several highly explosive eruptions during its history, which make it one of the most hazardous volcanoes in the southern volcanic zone of Chile, although it is still relatively little studied to date. We present a geochemical study of the products of the sub-Plinian, andesitic, Enco eruption that occurred about...
Article
Full-text available
Constraining the degree of preservation of a meteoritic signature within an impact structure provides vital insights in the complex pathways and processes that occur during and after an impact cratering event, providing information on the fate of the projectile. The IODP-ICDP Expedition 364 drilling recovered a ∼829 m continuous core (M0077A) of im...
Article
Full-text available
This study presents a new classification of a ∼100-m-thick crater suevite sequence in the recent International Ocean Discovery Program (IODP)-International Continental Scientific Drilling Program (ICDP) Expedition 364 Hole M0077A drill core to better understand the formation of suevite on top of the Chicxulub peak ring. We provide an extensive data...
Article
Full-text available
The IODP-ICDP Expedition 364 drilling recovered a 829 m core from Hole M0077A, sampling ˜600 m of near continuous crystalline basement within the peak ring of the Chicxulub impact structure. The bulk of the basement consists of pervasively deformed, fractured, and shocked granite. Detailed geochemical investigations of 41 granitoid samples, that is...
Article
This study presents petrographic and geochemical characterization of 46 pre-impact rocks and 32 impactites containing and/or representing impact melt rock from the peak ring of the Chicxulub impact structure (Yucatán, Mexico). The aims were both to investigate the components that potentially contributed to the impact melt (i.e., the pre-impact lith...
Article
Full-text available
The Cretaceous-Paleogene (K-Pg) mass extinction is marked globally by elevated concentrations of iridium, emplaced by a hypervelocity impact event 66 million years ago. Here, we report new data from four independent laboratories that reveal a positive iridium anomaly within the peak-ring sequence of the Chicxulub impact structure, in drill core rec...
Article
Full-text available
Planar deformation features (PDFs) in quartz are a commonly used and well‐documented indicator of shock metamorphism in terrestrial rocks. The measurement of PDF orientations provides constraints on the shock pressure experienced by a rock sample. A total of 963 PDF sets were measured in 352 quartz grains in 11 granite samples from the basement of...
Article
The Late Paleozoic tectono-magmatic history and basement of the Maya block are poorly understood due to the lack of exposures of coeval magmatic rocks in the region. Recently, IODP-ICDP Expedition 364 recovered drill core samples at borehole M0077A from the peak ring of the Chicxulub impact crater, offshore of the Yucatán peninsula in the Gulf of M...
Article
Full-text available
Shocked quartz and feldspar grains commonly exhibit planar microstructures, such as planar fractures, planar deformation features, and possibly microtwins, which are considered to have formed by shock metamorphism. Their orientation and frequency are typically reported to be randomly distributed across a sample. The goal of this study is to investi...
Article
The Late Paleozoic tectono-magmatic history and basement of the Maya block are poorly understood due to the lack of exposures of coeval magmatic rocks in the region. Recently, IODP-ICDP Expedition 364 recovered drill core samples at borehole M0077A from the peak ring of the Chicxulub impact crater, offshore of the Yucatán peninsula in the Gulf of M...
Conference Paper
Full-text available
The ∼200 km diameter and ∼66 Ma, K-Pg boundary, Chicxulub crater (Mexico) is the only known terrestrial impact structure with a well-preserved peak-ring. In 2016, an IODP and ICDP drilling campaign resulted in the recovery of a core into its peak-ring (505.7-1334.7 mbsf). Three main lithological units were identified in the core [1], namely, from t...

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