Gueorgui Ratzov

Maître de conférences en Géosciences Marines
65
Documents

Publications

Publications

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Changes in marine sedimentation patterns in the northeastern South China Sea in the past 35,000 years

Kuan-Ting Chen , Shu-Kun Hsu , Andrew Tien-Shun Lin , Chih-Chieh Su , Nathalie Babonneau et al.
Communications Earth & Environment, 2024, 5 (1), pp.420. ⟨10.1038/s43247-024-01593-3⟩
Article dans une revue hal-04669283 v1
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Late Pleistocene charcoal-rich sediments in the Puerto Rico Trench, possible remnants of gigantic wildfires in North-Eastern South America

Chloé Seibert , Christian Beck , Nathalie Feuillet , Eva Moreno , Denise Pons et al.
Palaeogeography, Palaeoclimatology, Palaeoecology, 2024, 655, pp.112497. ⟨10.1016/j.palaeo.2024.112497⟩
Article dans une revue hal-04756190 v1
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Sedimentary Records in the Lesser Antilles Fore‐Arc Basins Provide Evidence of Large Late Quaternary Megathrust Earthquakes

Chloé Seibert , Nathalie Feuillet , G. Ratzov , Christian Beck , P. Morena et al.
Geochemistry, Geophysics, Geosystems, 2024, 25 (2), ⟨10.1029/2023GC011152⟩
Article dans une revue hal-04436131 v1

Structural evolution of the southern Ecuadorian forearc in the Santa Elena Peninsula region

Cédric Bulois , Marianne Saillard , Nicolas Espurt , Pedro Reyes Benítez , François Michaud et al.
Journal of South American Earth Sciences, 2023, 130, pp.104503. ⟨10.1016/j.jsames.2023.104503⟩
Article dans une revue hal-04233625 v1
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An innovative isotopic method to identify the volcanic source of distal tephra

Mathilde Bablon , François Nauret , Marianne Saillard , Pablo Samaniego , Ivan Vlastélic et al.
Earth and Planetary Science Letters, 2023, 619, pp.118283. ⟨10.1016/j.epsl.2023.118283⟩
Article dans une revue hal-04171645 v1
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Changes in Kuroshio Current dynamics and East Asian monsoon variability during the last 26 kyr

Pierrick Fenies , Maria-Angela Bassetti , Natalia Vazquez Riveiros , Christophe Menniti , Clément Frigola et al.
Palaeogeography, Palaeoclimatology, Palaeoecology, 2023, 632, 111836 (16p.). ⟨10.1016/j.palaeo.2023.111836⟩
Article dans une revue hal-04498620 v1
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Two types of slab components under Ecuadorian volcanoes supported by primitive olivine-hosted melt inclusion study

Diego Narvaez , Pablo Samaniego , Kenneth T. Koga , Estelle F. Rose-Koga , S. Hidalgo et al.
Lithos, 2023, 442-443, pp.107049. ⟨10.1016/j.lithos.2023.107049⟩
Article dans une revue insu-04197043 v1

Planktic-benthic foraminifera ratio (%P) as a tool for the reconstruction of paleobathymetry and geohazard: A case study from Taiwan

Raúl Tapia , Sicheng Le , Sze Ling Ho , Maria-Angela Bassetti , In-Tian Lin et al.
Marine Geology, 2022, 453, pp.106922. ⟨10.1016/j.margeo.2022.106922⟩
Article dans une revue hal-05001128 v1
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From long‐ to short‐term inter‐plate coupling at the subducted Carnegie Ridge crest, offshore Central Ecuador

J‐Y Collot , J‐n. Proust , J‐m Nocquet , C. Martillo , F. Michaud et al.
Journal of Geophysical Research : Solid Earth, 2022, 127 (8), pp.e2022JB024192. ⟨10.1029/2022JB024192⟩
Article dans une revue hal-03750721 v2
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Holocene marine tephra offshore Ecuador and Southern Colombia: First trench‐to‐arc correlations and implication for magnitude of major eruptions

Mathilde Bablon , Gueorgui Ratzov , François Nauret , Pablo Samaniego , François Michaud et al.
Geochemistry, Geophysics, Geosystems, 2022, 23 (9), pp.e2022GC010466. ⟨10.1029/2022GC010466⟩
Article dans une revue insu-03776996 v1
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Coexistence of Adjacent Siliciclastic, Carbonate, and Mixed Sedimentary Systems: An Example From Seafloor Morphology in the Northern Lesser Antilles Forearc

Pierre Morena , Gueorgui Ratzov , Antonio Cattaneo , Frauke Klingelhoefer , Christian Beck et al.
Frontiers in Earth Science, 2022, 10, pp.834029. ⟨10.3389/feart.2022.834029⟩
Article dans une revue hal-03722078 v1
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New perspectives in studying active faults in metropolitan France: the “Active faults France” (FACT/ATS) research axis from the Resif-Epos consortium

Jean-François Ritz , Stéphane Baize , Laurence Audin , Christine Authemayou , Fabien Graveleau et al.
Comptes Rendus. Géoscience, 2021, 353 (S1), pp.381-412. ⟨10.5802/crgeos.98⟩
Article dans une revue hal-03546364 v1
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Shallow gas hydrates off southwest Taiwan and their mechanisms

Yin-Sheng Huang , Shu-Kun Hsu , Chih-Chieh Su , Andrew Tien-Shun Lin , Pai-Sen Yu et al.
Marine Geophysical Research, 2021, 42 (1), pp.7. ⟨10.1007/s11001-021-09429-x⟩
Article dans une revue hal-03258221 v1
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Clay-mineral distribution in recent deep-sea sediments around Taiwan: Implications for sediment dispersal processes

Kalyani Nayak , Andrew Tien-Shun Lin , Kuo-Fang Huang , Zhifei Liu , Nathalie Babonneau et al.
Tectonophysics, 2021, 814, pp.228974. ⟨10.1016/j.tecto.2021.228974⟩
Article dans une revue hal-03578555 v1
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Seafloor morphology and sediment transfer in the mixed carbonate-siliciclastic environment of the Lesser Antilles forearc along Barbuda to St. Lucia

C. Seibert , N. Feuillet , G. Ratzov , C. Beck , Antonio Cattaneo
Marine Geology, 2020, 428, pp.106242. ⟨10.1016/j.margeo.2020.106242⟩
Article dans une revue insu-03094044 v1
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The Esmeraldas Canyon: A Helpful Marker of the Pliocene‐Pleistocene Tectonic Deformation of the North Ecuador‐Southwest Colombia Convergent Margin

J.‐y. Collot , G. Ratzov , P. Silva , Jean-Noël Proust , S. Migeon et al.
Tectonics, 2019, 38 (8), pp.3140-3166. ⟨10.1029/2019TC005501⟩
Article dans une revue hal-02326448 v1
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A honeycomb seafloor morphology in carbonate sediment of the Carnegie Ridge (offshore Ecuador): Formation and potential geodynamic significance

F. Michaud , J.Y. Collot , G. Ratzov , Jean-Noël Proust , A. Dano et al.
Geology, 2018, 46 (11), pp.979-982. ⟨10.1130/G45285.1⟩
Article dans une revue hal-01946123 v1

Earthquake-triggered deposits in the subduction trench of the north Ecuador/south Colombia margin and their implication for paleoseismology

S. Migeon , C. Garibaldi , G. Ratzov , S. Schmidt , J.-Y. Collot et al.
Marine Geology, 2017, 384, pp.47 - 62. ⟨10.1016/j.margeo.2016.09.008⟩
Article dans une revue hal-01737588 v1
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Turbidite chronostratigraphy off Algiers, central Algerian margin: A key for reconstructing Holocene paleo-earthquake cycles

Nathalie Babonneau , Antonio Cattaneo , Gueorgui Ratzov , Jacques Déverchère , Abdelkarim Yelles-Chaouche et al.
Marine Geology, 2017, 384, pp.63 - 80. ⟨10.1016/j.margeo.2016.10.017⟩
Article dans une revue hal-01734516 v1

Historical Reconstruction of Submarine Earthquakes Using Pb-210, Cs-137, and Am-241 Turbidite Chronology and Radiocarbon Reservoir Age Estimation off East Taiwan

Laurent Dezileau , R. Lehu , Serge Lallemand , S-K Hsu , Nathalie Babonneau et al.
Radiocarbon, 2016, 58 (1), pp.25-36. ⟨10.1017/RDC.2015.3⟩
Article dans une revue hal-01306986 v1

An attempt to reconstruct 2700 years of seismicity using deep-sea turbidites offshore eastern Taiwan

Remi Lehu , Serge Lallemand , Gueorgui Ratzov , Nathalie Babonneau , Shu-Kun Hsu et al.
Tectonophysics, 2016, 692, pp.309-324. ⟨10.1016/j.tecto.2016.04.030⟩
Article dans une revue hal-01467627 v1

A similar to 3000 years-old sequence of extreme events revealed by marine and shore deposits east of Taiwan

Serge Lallemand , Remi Lehu , Fabien Retif , Shu-Kun Hsu , Nathalie Babonneau et al.
Tectonophysics, 2016, 692, pp.325-341. ⟨10.1016/j.tecto.2015.11.001⟩
Article dans une revue hal-01467640 v1

An offshore-onland transect across the north-eastern Black Sea basin (Crimean margin): Evidence of Paleocene to Pliocene two-stage compression

Yevgeniya Sheremet , Marc Sosson , Gueorgui Ratzov , Grigoriy Sydorenko , Zinoviy Voitsitskiy et al.
Tectonophysics, 2016, 688, pp.84 - 100. ⟨10.1016/j.tecto.2016.09.015⟩
Article dans une revue hal-01744705 v1
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Holocene turbidites record earthquake supercycles at a slow-rate plate boundary

Gueorgui Ratzov , A. Cattaneo , Nathalie Babonneau , Jacques Déverchère , K. Yelles et al.
Geology, 2015, 43 (4), pp.331-334. ⟨10.1130/G36170.1⟩
Article dans une revue insu-01133376 v1

Deep-sea sedimentation offshore eastern Taiwan: Facies and processes characterization

Remi Lehu , Serge Lallemand , Shu-Kun Hsu , Nathalie Babonneau , Gueorgui Ratzov et al.
Marine Geology, 2015, 369, pp.1-18. ⟨10.1016/j.margeo.2015.05.013⟩
Article dans une revue hal-01277768 v1

Quaternary sedimentation and active faulting along the Ecuadorian shelf: preliminary results of the ATACAMES Cruise (2012)

F. Michaud , Jean-Noël Proust , Jean-Yves Collot , Jean-Frederic Lebrun , C. Witt et al.
Marine Geophysical Research, 2015, 36 (1), pp.81-98. ⟨10.1007/s11001-014-9231-y⟩
Article dans une revue insu-01131151 v1

Late Quaternary geomorphologic evolution of submarine canyons as a marker of active deformation on convergent margins: The example of the South Colombian margin,

Gueorgui Ratzov , M. Sosson , J.-Y. Collot , S. Migeon
Marine Geology, 2012, 315-318, pp.77-97. ⟨10.1016/j.margeo.2012.05.005⟩
Article dans une revue istex hal-00815438 v1
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Searching for the seafloor signature of the 21 May 2003 Boumerdès earthquake offshore central Algeria

Antonio Cattaneo , Nathalie Babonneau , Gueorgui Ratzov , G. Dan-Unterseh , Karim Yelles et al.
Natural Hazards and Earth System Sciences, 2012, 12, pp.2159-2172. ⟨10.5194/nhess-12-2159-2012⟩
Article dans une revue insu-00769974 v1
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The tsunami signature on a submerged promontory: the case study of the Atacames Promontory, Ecuador

M. Ioualalen , Gueorgui Ratzov , J.-Y. Collot , E. Sanclemente
Geophysical Journal International, 2011, 184 (2), pp.680-688. ⟨10.1111/j.1365-246X.2010.04878.x⟩
Article dans une revue hal-00585747 v1

Active Deformation along the Southern End of the Tosco Abreojos Fault System: New Insights from Multibeam Swath Bathymetry, in Geodynamics of the Mexican Pacific Margin

F. Michaud , T. Calmus , Gueorgui Ratzov , Jean-Yves Royer , M. Sosson et al.
Pure and Applied Geophysics, 2011, 168 (8-9), pp.1363-1372. ⟨10.1007/s00024-010-0193-y⟩
Article dans une revue istex hal-00498287 v1

Mass-transport deposits in the northern Ecuador subduction trench: Result of frontal erosion over multiple seismic cycles

Gueorgui Ratzov , J.-Y. Collot , M. Sosson , S. Migeon
Earth and Planetary Science Letters, 2010, 296 (1-2), pp.89-102. ⟨10.1016/j.epsl.2010.04.048⟩
Article dans une revue istex hal-00498289 v1

Miocene to Messinian deformation and hydrothermal activity in a pre-alpine basement massif of the French Western Alps: New U-Th-Pb and Argon ages from the Lauzière massif

Dominique Gasquet , Jean-Michel Bertrand , Jean-Louis Paquette , Jérémie Lehmann , Gueorgui Ratzov et al.
Bulletin de la Société Géologique de France, 2010, 181 (3), pp.227-241. ⟨10.2113/gssgfbull.181.3.227⟩
Article dans une revue halsde-00467414 v1

Importance of sea subsurface temperatures on the past hydroclimate of Taiwan

Pierrick Fenies , Sze Ling Ho , Maria-Angela Bassetti , Natalia Vazquez Riveiros , Nina Davtian et al.
3rd INQUA-PAGES joint ECR workshop, Nov 2024, Goa, India
Communication dans un congrès hal-04786958 v1

The evolution of typhoon dynamics affecting Taiwan as recorded in marine sedimentary archives since the Last Glacial Maximum

Pierrick Fenies , Sze Ling Ho , Maria-Angela Bassetti , Natalia Vazquez Riveiros , Nina Davtian et al.
9th France-Taiwan Symposium in Earth Sciences, Jun 2024, Penghu, Taiwan. pp.2-38
Communication dans un congrès hal-04690840 v1

Characterization of tephra layers recorded in marine sediments off Ecuador during the past 10 Ma, and implications on the regional geodynamics and volcanic hazard assessment

Mathilde Bablon , Marianne Saillard , François Michaud , Pablo Samaniego , François Nauret et al.
COT-INTIMATE-THM 2024 International Conference “Tephra: Chronology, Stratigraphy, Hazards, & Climate”, Sep 2024, Catania, Italy
Communication dans un congrès hal-04699966 v1

Une méthode isotopique innovante pour identifier la source volcanique des téphras distaux : application à l’arc Nord Andin

Mathilde Bablon , François Nauret , Pablo Samaniego , Ivan Vlastélic , Marianne Saillard et al.
28ème Réunion des Sciences de la Terre, 2023, Rennes, France
Communication dans un congrès hal-04299826 v1

Sea water temperature reconstruction using TEX86 and RI-OH paeothermomethers in the northwestern Philippine Sea since the Last Glacial Maximum

Pierrick Fenies , Nina Davtian , Sze Ling Ho , Joan Villanueva , Maria-Angela Bassetti et al.
2nd international GDGT workshop, Sep 2023, Zurich, Switzerland
Communication dans un congrès hal-04496857 v1

Marine tephra offshore Ecuador and Southern Colombia: first trench-to-arc correlations and implication for the magnitude of major eruptions

Mathilde Bablon , Marianne Saillard , Xavier Quidelleur , Pablo Samaniego , Gueorgui Ratzov et al.
Seminario de presentación de resultados del LMI SVAN y perspectivas futuras, Oct 2022, Quito, Ecuador
Communication dans un congrès hal-03943277 v1

Structural Evolution of southern Ecuadorian forearc (Santa Elena Peninsula)

Cédric Bulois , Marianne Saillard , Nicolas Espurt , François Michaud , Pedro Reyes et al.
Latin American and Caribbean Seismological Commission (LACSC) 4th Assembly, Latin American and Caribbean Seismological Commission, 2022, Quito, Ecuador
Communication dans un congrès insu-04115767 v1

Identification d’évènements extrêmes passés à partir de l’analyse et de corrélations terre-mer de téphras déposés au large de l'Équateur et du sud de la Colombie

Mathilde Bablon , François Michaud , Marianne Saillard , Gueorgui Ratzov , Jean-Luc Le Pennec et al.
18ème Congrès Français de Sédimentologie, Sep 2022, Brest, France
Communication dans un congrès hal-03792261 v1

Structural Evolution of the southern Ecuadorian forearc in the Santa Elena Peninsula region

Marianne Saillard , Cédric Bulois , Nicolas Espurt , François Michaud , Pedro Reyes et al.
AGU Fall Meeting, American Geophysical Union, Dec 2022, Chicago (IL), United States
Communication dans un congrès insu-04115761 v1

Déviation et variation de l'intensité du courant de Kuroshio dans la mer des Philippines, au nord-est de Taiwan, depuis le dernier maximum glaciaire

Pierrick Fenies , Clément Frigola , Maria-Angela Bassetti , Natalia Vázquez Riveiros , Nathalie Babonneau et al.
27e édition de la Réunion des Sciences de la Terre, SGF, CNRS, Laboratoire de Géologie de Lyon ou l’étude de la Terre, des planètes et de l’environnement, Nov 2021, Lyon, France
Communication dans un congrès hal-03587849 v1

First identification, geochemical characterization, and land-sea correlations of Holocene marine distal tephra from the Ecuadorian arc

Mathilde Bablon , François Nauret , Pablo Samaniego , Jean-Luc Devidal , Gueorgui Ratzov et al.
Goldschmidt, Jul 2021, Lyon, France. ⟨10.7185/gold2021.7686⟩
Communication dans un congrès hal-03462620 v1

Formation of a giant honeycomb seafloor morphology on the Carnegie ridge: potential geodynamic significance

François Michaud , Jean-Yves Collot , Gueorgui Ratzov , Jean-Noël Proust , Et Al.
8th International Symposium on Andean Geodynamics (ISAG), Sep 2019, Quito, Ecuador
Communication dans un congrès insu-02395074 v1

Turbidites and megaturbidites of Ecuadorian subduction trench: paleoseismologic indicators?

M. Muthre , Jean-Noël Proust , Miguel Gonzales , Gueorgui Ratzov , François Michaud et al.
8th International Symposium on Andean Geodynamics (ISAG), Sep 2019, Quito, Ecuador
Communication dans un congrès insu-02395038 v1

The Esmeraldas Canyon: a helpful marker of the Pliocene- Pleistocene tectonic deformation of the north Ecuador southwest Colombia convergent margin

Jean-Yves Collot , Gueorgui Ratzov , P. Silva , Jean-Noël Proust , Sébastien Migeon et al.
8th International Symposium on Andean Geodynamics (ISAG), Sep 2019, Quito, Ecuador
Communication dans un congrès insu-02395096 v1

Deep megadeposits as paleoseismic indicators in the Lesser Antilles subduction zone

Pierre Morena , Antonio Cattaneo , Gueorgui Ratzov , Frauke Klingelhoefer , Arthur Bieber et al.
EGU General Assembly, Apr 2019, Vienne, Austria. pp.2019 - 15192, ⟨10.17600/16001800⟩
Communication dans un congrès hal-02383782 v1

Nature and distribution of recent sediments in the trench of the subduction margin of Ecuador.

Miguel Gonzalez , Jean-Noël Proust , Hugo Pouderoux , Gueorgui Ratzov , Camille Dufeu
8th International Symposium on Andean Geodynamics (ISAG), Sep 2019, Quito, Ecuador
Communication dans un congrès insu-02395030 v1

Nature and distribution of recent sediments in the trench of the subduction margin of Ecuador

Miguel Gonzales , Jean-Noël Proust , François Michaud , Gueorgui Ratzov , Camille Dufeu
25 ème Réunion des sciences de la Terre (RST 2016), Société Géologique de France, Oct 2016, Caen, France. pp.144
Communication dans un congrès insu-01388115 v1

Nature and Architecture of the Sedimentary Deposits in the Trench of the Ecuadorian Subduction Margin

Miguel González , Jean-Noël Proust , François Michaud , Hugo Pouderoux , Gueorgui Ratzov
European Geosciences Union General Assembly 2016, European Geosciences Union, Apr 2016, Vienne, Austria
Communication dans un congrès insu-01308841 v1

CONTRÔLES DE LA FORMATION D’UN MEGA-KARST SOUS-MARIN (FLANCS DE LA RIDE DE CARNEGIE, OCÉAN PACIFIQUE) : ANALYSE PRÉLIMINAIRE DE DONNÉES DE GÉOPHYSIQUE MARINE (SISMIQUE THR, CHIRP ET BATHYMÉTRIE MULTIFAISCEAUX ; CAMPAGNE ATACAMES 2012)

François Michaud , Gueorgui Ratzov , Amal Khaoulani , Yolene Stoll , Jean-Noël Proust et al.
Association des Sédimentologistes Français. 15ème congrès français de sédimentologie, Association des Sédimentologistes Français, Oct 2015, Chambéry, France. pp.291
Communication dans un congrès hal-01252237 v1

Recent debris-flows and megaturbidite in a confined basin of the North Ecuador subduction trench

Gueorgui Ratzov , J.-Y. Collot , M. Sosson , S. Migeon
7th International Symposium of Andean Geodynamic, Sep 2008, Nice, France
Communication dans un congrès hal-00456904 v1

Age U-Th-Pb Miocène de l'hydrothermalisme et de la déformation en basse Tarentaise (Savoie)

Jean-Michel Bertrand , Jean-Louis Paquette , Dominique Gasquet , J. Lehmann , Gueorgui Ratzov et al.
21ème réunion sciences de la terre, 2006, Dijon, France. pp.45
Communication dans un congrès hal-00147485 v1

Ages U-Pb sur Monazite de la déformation et de l'hydrothermalisme alpin du massif de La Lauzière (Savoie)

Jean-Michel Bertrand , Jean-Louis Paquette , Dominique Gasquet , J. Lehmann , Gueorgui Ratzov et al.
Réun. Sci. Terre, 2004, Strasbourg, France
Communication dans un congrès hal-00121181 v1

Métodos e Instrumentación acústica para la exploración en Geofísica Marina

F. Michaud , Gueorgui Ratzov , V. Sallarès , J.-Y. Collot , A. Pazmiño et al.
Collot J-Y, V. Sallares, and A. Pazmiño. Geologia y Geofisica Marina y Terestre del Ecuador desde la costa continental hasta las islas Gapapagos, CNDM-INOCAR-IRD, pp.9-28, 2009, PSE001-09, Guayaquil, Ecuador
Chapitre d'ouvrage hal-00456892 v1

Visión general de la morfología submarina del margen convergente de Ecuador-Sur de Colombia: implicaciones sobre la transferencia de masa y la edad de la subducción de la Cordillera de Carnegie

J.-Y. Collot , F. Michaud , A. Alvarado , B. Marcaillou , M. Sosson et al.
Collot J-Y, V. Sallares, and A. Pazmiño. Geologia y Geofisica Marina y Terestre del Ecuador desde la costa continental hasta las islas Gapapagos, CNDM-INOCAR-IRD, pp.47-74, 2009, PSE001-09, Guayaquil, Ecuador
Chapitre d'ouvrage hal-00456890 v1

Deslizamientos submarinos a lo largo del Margen Convergente del Norte de Ecuador - Sur de Colombia. Posible control tectónico

Gueorgui Ratzov , M. Sosson , J.-Y. Collot , S. Migeon , F. Michaud et al.
Collot J-Y, V. Sallares, and A. Pazmiño. Geologia y Geofisica Marina y Terestre del Ecuador desde la costa continental hasta las islas Gapapagos, CNDM-INOCAR-IRD, PSE001-09, Guayaquil, Ecuador, pp.75-82, 2009
Chapitre d'ouvrage hal-00497947 v1

Submarine Landslides Along The North Ecuador – South Colombia Convergent Margin: Possible Tectonic Control

Gueorgui Ratzov , M. Sosson , J.-Y. Collot , S. Migeon , F. Michaud et al.
Submarine Mass Movements and Their Consequences, Springer Netherlands, pp.47-55, 2007, Advances in Natural and Technological Hazards Research, ⟨10.1007/978-1-4020-6512-5_6⟩
Chapitre d'ouvrage hal-00458113 v1