Zobrazeno 1 - 10
of 101
pro vyhledávání: '"Jean‐François Ghienne"'
Autor:
Pierre-Olivier Couette, Patrick Lajeunesse, Jean-François Ghienne, Boris Dorschel, Catalina Gebhardt, Dierk Hebbeln, Etienne Brouard
Publikováno v:
Communications Earth & Environment, Vol 3, Iss 1, Pp 1-12 (2022)
A large moraine system extends along the continental slope of Baffin Island, Canada, according to swath bathymetry and acoustic profiler data, which suggests that an ice shelf of 500 m thickness covered Baffin Bay during the Last Glacial Maximum.
Externí odkaz:
https://doaj.org/article/9cf3f899e12849b0905a7a75520f70e8
Publikováno v:
Water, Vol 12, Iss 11, p 3180 (2020)
Lake Chad, the largest freshwater lake of north-central Africa and one of the largest lakes of Africa, is the relict of a giant Quaternary lake (i.e., Megalake Chad) that developed during the early- to mid-Holocene African Humid Period. Over the dryl
Externí odkaz:
https://doaj.org/article/52a361eef3ce42389594b27b500c5958
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
Autor:
Olaf Elicki, Tim Meischner, Semih Gürsu, Jean-François Ghienne, Ahmad Masri, Khaled Ali Moumani, Huriye Demircan
Publikováno v:
Geological Society, London, Special Publications. 533:253-277
This contribution addresses the current state of knowledge of the mainly siliciclastic Ordovician rocks in Jordan, Syria and southern Turkey, including advances in palaeontology, stratigraphy, depositional facies analysis and supra-regional correlati
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b62d6af8c2683dc8c5908a125bf144c5
https://doi.org/10.1144/sp533-2022-53
https://doi.org/10.1144/sp533-2022-53
Autor:
Bertrand Lefebvre, J. Javier Álvaro, Josep Maria Casas, Jean-François Ghienne, Alain Herbosch, Alfredo Loi, Eric Monceret, Jacques Verniers, Muriel Vidal, Daniel Vizcaïno, Thomas Servais
Publikováno v:
Geological Society, London, Special Publications. 532:375-408
The Ordovician successions of France and neighbouring areas of Belgium and Germany are reviewed and correlated based on international chronostratigraphic and regional biostratigraphic charts. The same three megasequences related to the rift, drift an
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a28c67908a5f964041a6dfae47494c3e
https://doi.org/10.1144/sp532-2022-268
https://doi.org/10.1144/sp532-2022-268
Autor:
Jean-François Ghienne, Hussein Abdallah, Rémy Deschamps, Michel Guiraud, Juan Carlos Gutiérrez-Marco, Moussa Konaté, Guido Meinhold, Abderamane Moussa, Jean-Loup Rubino
Publikováno v:
Geological Society, London, Special Publications. 533:199-252
The Ordovician of North and West Africa comprises three main transgressive–regressive sequences understood as ‘second-order’ cycles of 10–15 myr duration. Tide- to wave-dominated shallow-marine clastic successions, preserving incidental bryoz
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::96d3f78e969deba3e9289a475c8ebdc3
https://doi.org/10.1144/sp533-2022-213
https://doi.org/10.1144/sp533-2022-213
Autor:
Jean-François Ghienne, Abderamane Moussa, Abakar Saad, Barnabé Djatibeye, Hissein Mahamat Youssouf
Publikováno v:
Comptes Rendus. Géoscience. 355:63-84
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6b182dd84eb578a582d8d702f9539814
https://doi.org/10.5802/crgeos.180
https://doi.org/10.5802/crgeos.180
Autor:
Alfredo Loi, Fabrizio Cocco, Giacomo Oggiano, Antonio Funedda, Muriel Vidal, Annalisa Ferretti, Francesco Leone, Sebastiano Barca, Stefano Naitza, Jean-François Ghienne, Gian Luigi Pillola
Publikováno v:
Geological Society, London, Special Publications. 532:409-431
This review illustrates the most important features of the Ordovician successions of the Sardinian basement. We focus on the stratigraphy and tectonic structures in the tectonic units of the External and Nappe zones of the Variscan basement. The Ordo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::245c0edfabd15239e2e139cae9d9dc28
https://doi.org/10.1144/sp532-2022-121
https://doi.org/10.1144/sp532-2022-121
Publikováno v:
Journal of Quaternary Science (0267-8179) (Wiley) In Press
The Laurentide Ice Sheet (LIS) was the largest ice sheet in the Northern Hemisphere during the last glacial cycle. The effects of its demise on global climate and sea-level changes during the subsequent deglaciation are unequivocal. Understanding the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::705a39fe021cd9e49310acd0cb9983b4
https://archimer.ifremer.fr/doc/00836/94824/
https://archimer.ifremer.fr/doc/00836/94824/
Autor:
Fabrizio Cocco, Alfredo Loi, Antonio Funedda, Leonardo Casini, Jean-François Ghienne, Gian Luigi Pillola, Muriel Vidal, Mattia Alessio Meloni, Giacomo Oggiano
Publikováno v:
International Journal Of Earth Sciences (1437-3254) (Springer Science and Business Media LLC), 2023-02, Vol. 112, N. 1, P. 321-344
Although much is known about the Ordovician tectonics of the South European Variscides, aspects of their geodynamic evolution and palaeogeographic reconstruction remain uncertain. In Sardinia, Variscan tectonic units include significant vestiges of O
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c76190ea8f1b34f33171e1369914e760
https://archimer.ifremer.fr/doc/00796/90768/
https://archimer.ifremer.fr/doc/00796/90768/