shorelines of the Holocene Megalake Chad (Africa, Sahara) investigated with very high resolution satellite imagery (Pléiades) : example of the Goz Kerki paleo-spit

Autor: Mathieu Schuster, Claude Roquin, Abderamane Moussa, Jean-François Ghienne, Philippe Duringer, Frédéric Bouchette, Arnaud Durand, Bernard Allenbach

Publikováno v: Revue Française de Photogrammétrie et de Télédétection, Iss 208 (2014)

Megalake Chad (350,000 km2), the largest paleo-lake of the Sahara-Sahel area, is one of the most emblematic marker of the hydroclimatic changes that occurred during the African Humid Period (AHP; ca. 11,500 — 5,000 years BP) in subtropical Africa.

Externí odkaz: https://doaj.org/article/ce9b58430a4941fc98095955b0aa354f

Deglacial to Paraglacial History of the Lake Saint-Jean Lowlands:A Geomorphological Perspective

Autor: Jean-François Ghienne, Etienne Brouard, Pierre A. Cousineau, Alexis Nutz, Patrick Lajeunesse, Mathieu Schuster, Claude Roquin, Frédéric Bouchette, Pierre Dietrich

Publikováno v: Nutz, A, Lajeunesse, P, Ghienne, J F, Schuster, M, Brouard, E, Dietrich, P, Bouchette, F, Roquin, C & Cousineau, P A 2020, Deglacial to Paraglacial History of the Lake Saint-Jean Lowlands : A Geomorphological Perspective . in O Slaymaker & N Catto (eds), Landscapes and Landforms of Eastern Canada . Springer, Cham, World Geomorphological Landscapes, pp. 145-158 . https://doi.org/10.1007/978-3-030-35137-3_5
World Geomorphological Landscapes ISBN: 9783030351359
Landscapes and Landforms of Eastern Canada
Olav Slaymaker & Norm Catto (Eds.). Landscapes and Landforms of Eastern Canada, Springer, pp.145-158, 2020, World Geomorphological Landscapes book series (WGLC), 978-3-030-35135-9. ⟨10.1007/978-3-030-35137-3_5⟩

International audience; The Lake Saint-Jean lowland is a particular area in eastern Canada as it constitutes an important Late Quaternary depocenter compared with other surrounding onshore regions. Here, the recent literature about the Late Quaternar

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::82a8f56ae5dc5e94701b384059c178e8
https://pure.au.dk/portal/da/publications/deglacial-to-paraglacial-history-of-the-lake-saintjean-lowlands(45bad3b3-83cf-4426-b305-e419274c6432).html

From outwash to coastal systems in the Portneuf–Forestville deltaic complex (Quebec North Shore): Anatomy of a forced regressive deglacial sequence

Autor: Patrick Lajeunesse, Philippe Duringer, Rémy Deschamps, Claude Roquin, Alexis Nutz, Jean-François Ghienne, Mathieu Schuster, Pierre Dietrich

Publikováno v: Sedimentology
Sedimentology, Blackwell Publishing, 2017, 64 (4), pp.1044-1078. ⟨10.1111/sed.12340⟩
Dietrich, P, Ghienne, J F, Schuster, M, Lajeunesse, P, Nutz, A, Deschamps, R, Roquin, C & Duringer, P 2017, ' From outwash to coastal systems in the Portneuf-Forestville deltaic complex (Québec North Shore) : Anatomy of a forced regressive deglacial sequence ', Sedimentology, vol. 64, no. 4, pp. 1044–1078 . https://doi.org/10.1111/sed.12340

Deglacial sequences typically include backstepping grounding zone wedges and prevailing glaciomarine depositional facies. However, in coastal domains, deglacial sequences are dominated by depositional systems ranging from turbiditic to fluvial facies

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::728f092f6af5673c778cf1b186fc5e74
https://hal.archives-ouvertes.fr/hal-01532015/document

Lake Chad sedimentation and environments during the late Miocene and Pliocene: New evidence from mineralogy and chemistry of the Bol core sediments

Autor: Jean-François Ghienne, Alain Decarreau, Jean-Charles Mazur, Patrick Vignaud, Doris Barboni, Didier Bourlès, Abderamane Moussa, Christine Paillès, Claude Roquin, Guillaume Buchet, Mathieu Schuster, Philippe Duringer, Florence Sylvestre, Alice Novello, Jean Maley, Michel Brunet, Claude Fontaine, Anne-Elisabeth Lebatard

Publikováno v: Journal of African Earth Sciences
Journal of African Earth Sciences, 2016, 118, pp.192-204. ⟨10.1016/j.jafrearsci.2016.02.023⟩
Journal of African Earth Sciences, Elsevier, 2016, 118, pp.192-204. ⟨10.1016/j.jafrearsci.2016.02.023⟩

This study presents mineralogical and geochemical data from a borehole drilled near the locality of Bol (13 degrees 27'N, 14 degrees 44'E), in the eastern archipelago of the modern Lake Chad (Chad). Samples were taken from a similar to 200 m long cor

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fed020a8827d38ce70e58fee1ef4040f
https://hal.science/hal-01716155

Wind-driven bottom currents and related sedimentary bodies in Lake Saint-Jean (Québec, Canada)

Autor: Olivier Raynal, Sirocco Team, Frédéric Bouchette, Fabien Retif, Murray B. Hay, Alexis Nutz, Claude Roquin, M. Schuster, Nicolas Robin, Jean-François Ghienne, Raphaël Certain, Pierre A. Cousineau

Publikováno v: Geological Society of America Bulletin
Geological Society of America Bulletin, Geological Society of America, 2015, pp.1-15. ⟨10.1130/B31145.1⟩

International audience; Lakes are major depositional systems for which the related depositional processes have long been considered relatively simple. Breaking this statement, this study presents a detailed analysis of deposits in Lake Saint-Jean, th

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::68ba75647de684a09333508f7f2d364c
https://hal-insu.archives-ouvertes.fr/insu-01184724