T026
Understanding the Variability in Accretionary Processes and Hydrothermal Activity at Slow Spreading Ridges II Posters

Thursday, 10 December 2020: 04:00-20:59
Poster
Primary Convener:  Manon Bickert, Institut de Physique du Globe de Paris, Paris, France
Conveners:  Manon Bickert, Institut de Physique du Globe de Paris, Sorbonne Paris Cité, Université Paris Diderot, Paris, France, Eric L Mittelstaedt, University of Idaho Library, Moscow, ID, United States and Mathilde Cannat, CNRS and Institut de Physique du Globe de Paris, Paris, France
Primary Liaison:  Manon Bickert, Institut de Physique du Globe de Paris, Paris, France
Chairs:  Manon Bickert, Institut de Physique du Globe de Paris, Sorbonne Paris Cité, Université Paris Diderot, Paris, France, Mathilde Cannat, CNRS and Institut de Physique du Globe de Paris, Paris, France and Eric L Mittelstaedt, University of Idaho Library, Moscow, ID, United States
OSPA Liaison:  Mathilde Cannat, CNRS and Institut de Physique du Globe de Paris, Paris, France
 
Axial instability and time evolution at an ultra-cold slow-spreading ridge: the Mid-Atlantic Ridge-Romanche transform intersection. First results from the SMARTIES cruise (Invited) (665667)
Marcia Maia, CNRS-Université de Bretagne Occidentale, Laboratoire Géosciences Océan, Institut Universitaire Européen de la Mer, Plouzané, France, Daniele Brunelli, University of Modena and Reggio Emilia, Dipartimento di Scienze Chimiche e Geologiche, Modena, Italy, Anne Briais, Obs Midi-Pyrenees, Toulouse, France, Lorenzo Petracchini, Consiglio Nazionale delle Ricerche, Roma, Italy and SMARTIES cruise scientific team
 
Magma Transport Along a Single Slow-Spreading Segment of the Mid-Atlantic Ridge at 14°N (741527)
Emma E McCully1, V. Dorsey Wanless1, Mark D Kurz2, Samuel A Soule2 and Eric L Mittelstaedt3, (1)Boise State University, Boise, ID, United States, (2)WHOI, Woods Hole, MA, United States, (3)University of Idaho, Moscow, ID, United States
 
Earthquake swarms of the Equatorial Mid-Atlantic Ridge 4˚-5˚N from regional seismic recordings (768985)
Guilherme de Melo, Federal University of Rio Grande do Norte, Natal, RN, Brazil, Neil C Mitchell, University of Manchester, School of Earth and Environmental Sciences, Manchester, United Kingdom, Jiri Zahradnik, Charles University, Prague, Czech Republic, Fabio L Dias, Observatório Nacional, Geofísica, Rio de Janeiro, Brazil and Aderson Farias do Nascimento, UFRN: Federal University of Rio Grande do Norte, DGEF: Geophysics Department, Natal, Brazil
 
Re-fertilization of abyssal peridotites by ultra-depleted melts at the Doldrums Fracture Zone transform system (7-8ºN, Mid Atlantic Ridge). (719551)
Camilla Sani1, Alessio Sanfilippo1, Carlotta Ferrando1, Alexander Peyve2, Sergey G Skolotnev2, Filippo Muccini3, Alberto Zanetti4, Valentin Basch1, Camilla Palmiotto5, Enrico Bonatti6 and Marco Ligi7, (1)University of Pavia, Pavia, Italy, (2)Russian Academy of Sciences, Moscow, Russia, (3)INGV National Institute of Geophysics and Volcanology, Geophysics and Marine Technologies, Rome, Italy, (4)CNR, Pavia, Italy, (5)CNR Institute for Marine Science, Venice, Italy, (6)Columbia University of New York, Palisades, United States, (7)CNR Institute for Marine Sience, Bologna, Italy
 
The ultraslow spreading Knipovich Ridge: Mechanisms of melt focusing and segmentation (666962)
Michaela Meier1, Vera S N Schlindwein1, John-Robert Scholz1, Jonah Geils2, Mechita C Schmidt-Aursch1, Frank Krueger3, Wojciech Czuba4 and Tomasz Janik4, (1)Alfred Wegener Institute Helmholtz-Center for Polar and Marine Research Bremerhaven, Bremerhaven, Germany, (2)University of Bremen, Bremen, Germany, (3)University of Potsdam, Potsdam, Germany, (4)Institute of Geophysics Polish Academy of Sciences, Warsaw, Poland
 
Variations in M factor along the ultra-slow spreading Mohns Ridge (723665)
Yinuo Zhang, SCSIO South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, China, Fan Zhang, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, China and Tao Zhang, Second Institute of Oceanography, Ministry of Natural Resources, Hangzhou, China; Key Laboratory of Submarine Geosciences, State Oceanic Administration, Hangzhou, China
 
Along-axis variations in magma plumbing system of the ultraslow-spreading Gakkel Ridge (695927)
Emma Natasha Bennett1, Johan C J Lissenberg1 and Katharine V Cashman2, (1)Cardiff University, Cardiff, United Kingdom, (2)University of Bristol, Bristol, United Kingdom
 
A Decapitated Inside-Corner High of the Discovery Fracture Zone Ridge-Transform Intersection, SW Indian Ridge (751818)
Ben Urann, Woods Hole Oceanographic Institution, Woods Hole, MA, United States, Henry J Dick, Woods Hole Oceanographic Inst, Arlington, MA, United States and Maurice Tivey, Woods Hole Oceanographic Inst, Woods Hole, MA, United States
 
IODP Hole U1473A at Atlantis Bank (Southwest Indian Ridge; Expedition 360): Formation & metamorphism of felsic veins in gabbros and their role for fluid and mass transfer: first results (671800)
Artur Engelhardt1, Juergen Koepke2 and Francois Holtz1, (1)Leibniz University of Hannover, Hannover, Germany, (2)Leibniz University of Hannover, Institute of Mineralogy, Hannover, Germany
 
Magma reservoir formation and evolution at a slow-spreading center (Atlantis Bank, Southwest Indian Ridge) (726964)
Marine Boulanger1, Lyderic France1, Jeremy R Deans2, Carlotta Ferrando3, Johan C J Lissenberg4 and Anette Von Der Handt5, (1)CRPG Centre de Recherches Pétrographiques et Géochimiques, Vandoeuvre-Les-Nancy, France, (2)University of Southern Mississippi, Department of Geography and Geology, Stennis Space Center, TX, United States, (3)University of Pavia, Pavia, Italy, (4)Cardiff University, Cardiff, United Kingdom, (5)University of Minnesota, Minneapolis, MN, United States
 
Plastic Deformation of Plagioclase in a Gabbro Pluton at a Slow-Spreading Ridge (IODP Hole U1473A, Atlantis Bank, Southwest Indian ridge) (672129)
Maël Allard1, Benoit Ildefonse2 and Emilien Oliot2, (1)Géosciences Montpellier, Univ Montpellier, CNRS, Univ Antilles, Montpellier Cedex 05, France, (2)Géosciences Montpellier, Univ Montpellier, CNRS, Univ Antilles, Montpellier, France
 
A window into magma-starved upper oceanic lithosphere: Structure and geomorphology of a young active mid-ocean ridge detachment fault footwall at the Southwest Indian ridge (680054)
Souradeep Mahato, Institut de Physique du Globe de Paris, Marine Geosciences, Paris, France; Institut de Physique du Globe de Paris, Paris, France and Mathilde Cannat, CNRS and Institut de Physique du Globe de Paris, Paris, France
 
Microseismicity constraints on brittle lithosphere thickness at a nearly amagmatic spreading corridor of the ultraslow Southwest Indian Ridge (669157)
Jie Chen1, Wayne C Crawford1 and Mathilde Cannat2, (1)Institut de Physique du Globe de Paris, Paris, France, (2)CNRS and Institut de Physique du Globe de Paris, Paris, France
 
Understanding the heterogenic magnetic properties of oceanic upper mantle and lower crustal materials (723159)
Masakazu Fujii, NIPR National Institute of Polar Research, Tokyo, Japan and Xiangyu Zhao, National Institute of Polar Research, Tokyo, Japan
 
Temporal variation of crustal accretion along the Vulcan Transform, the Southern Ocean (711503)
Kyoko Okino1, Kenichiro Tani2, Osamu Ishizuka3, Hiroaki Koge3 and Jinyu Zhou1, (1)Atmosphere and Ocean Research Institute, The University of Tokyo, Kashiwa, Japan, (2)National Museum of Nature and Science, Ibaraki, Japan, (3)Tsukuba, Ibaraki, Japan
 
Melt-Rock Reaction during back-arc spreading forming the Mado Megamullion in the Shikoku Basin (745273)
Atlanta Sen1, Jonathan E Snow2, Yasuhiko Ohara3, Alessio Sanfilippo4, Valentin Basch4 and Kyoko Okino5, (1)University of Houston, Houston, TX, United States, (2)Louisiana State University, Baton Rouge, LA, United States, (3)JAMSTEC Japan Agency for Marine-Earth Science and Technology, Kanagawa, Japan, (4)University of Pavia, Pavia, Italy, (5)Univ Tokyo, Atmosphere and Ocean Research Institute, Kashiwa, Chiba, Japan
 
Axial Topography of Mid-ocean Ridge Systems: the Role of Underlying Melt Dynamics (712261)
Joyjeet Sen, Shamik Sarkar and Nibir Mandal, Jadavpur University, Department of Geological Sciences, Kolkata, India
 
Mantle potential temperature controls crustal thickness and spreading pattern at slow-ultraslow mid-ocean ridges (680233)
Mingqi Liu, ETH Zurich, Zurich, Switzerland and Taras Gerya, ETH Swiss Federal Institute of Technology Zurich, Zurich, Switzerland
 
How corrugated surfaces form at ultraslow spreading ridges (664204)
Hao Lu and Eunseo Choi, University of Memphis, Memphis, TN, United States
 
Seesaw ridge propagation and the strength of the lithosphere at slow-spreading ridges (730347)
Hugh Harper1, David T Sandwell2 and Brook Tozer1, (1)Scripps Institution of Oceanography, La Jolla, CA, United States, (2)Scripps Institution of Oceanography, Institute of Geophysics and Planetary Physics, La Jolla, CA, United States
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