6Th Orogenic Lherzolite Conference Scientific Program
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6th Orogenic Lherzolite Conference Scientific Program 8 may Subcontinental mantle lithosphere / melt-rock reactions - 1 Chair: C. Garrido 9h-9h10 Bodinier / Menzies Opening 9h10-9h30 O'Reilly Updating metasomatism concepts: stealth, densification, and geophysical consequences 9h30-9h50 Rampone The trace element chemistry of olivine as proxy of melt-rock reaction in the oceanic lithosphere 9h50-10h10 Takazawa Update on the spatial distribution of highly refractory peridotites in the northern Oman mantle section as proxy for fluid infiltration and flux melting 10h20-10h50 Break Subcontinental mantle lithosphere / melt-rock reactions - 2 Chair: K. Ozawa 10h50-11h10 Borghini Pyroxenite emplacement in Northern Apennine ophiolitic peridotites (Italy): insights on the origin of small-scale chemical and isotopic heterogeneity in the upper mantle 11h10-11h30 Lambart PX-MELT: a predictive model for the melting of pyroxenites in the mantle 11h30-11h50 Montanini Garnet pyroxenites from the External Ligurian mantle sequence (Italy): Evidence for crustal recycling and melt/peridotite interaction 11h50-12h10 Katzir Garnet pyroxenites as markers of recurring extension and magmatism at the margins of the Arabian plate 12h30-14h Lunch Subcontinental mantle lithosphere / melt-rock reactions - 3 Chair: S. O'Reilly 14h-14h20 Sossi Origin of the Balmuccia peridotite massif 14h20-14h40 Rooks Textures and geothermobarometry of off-craton spinel & garnet-bearing peridotites from South Patagonia 14h40-15h Ntaflos Petrological, geochemical and isotopic evidence for lithospheric delamination underneath Far East Russia 15h-15h20 Puziewicz Lithology of Central European Lithospheric Mantle 15h20-15h40 Zanetti Sources, migration mechanisms and geodynamic environment of K-LILE-Mg- enriched melts: evidence from the Finero Complex (Southern Alps) 16h10-16h50 Break Subduction-related massifs and UHP peridotites Chair: M. Menzies 16h50-17h10 Griffin Transition-Zone mineral assemblages in peridotite massifs, Tibet: Implications for collision-zone dynamics and orogenic peridotites 17h10-17h30 Yang Diamonds and highly reduced minerals from chromitite of the Ray-Iz ophiolite of the Polar Urals: deep origin of podiform chromitites and ophiolitic diamonds 17h30-17h50 Robinson The fate of crustal materials subducted into the mantle: Evidence from ophiolites 17h50-18h10 Dilek Subduction Initiation Record (SIR) in Suprasubduction Zone Ophiolites 9 may Volatiles, fluids and melts in the mantle - 1 Chair: W. Griffin 9h-9h20 Gaillard Electrical Petrology of mantle melting: a methodology to reconcile the petrological and the geophysical asthenosphere 9h20-9h40 Golovin Pristine melts from lithosphere-asthenosphere boundary preserved within sheared peridotite xenoliths from kimberlites 9h40-10h Pokhilenko Petrological and geochemical features of secondary enrichment of the craton mantle peridotites of the diamond stability field 10h-10h20 Demouchy Distribution of Hydrogen in the Mantle Lithosphere 10h20-10h50 Break Volatiles, fluids and melts in the mantle - 2 Chair: F. Gaillard 10h50-11h10 Guild Determination of the boron concentration and isotopic composition of the subcontinental lithospheric mantle by secondary ion mass spectrometry 11h10-11h30 Denis Water content and hydrogen behaviour during metasomatism in the uppermost mantle beneath Ray Pic volcano (Massif Central, France) 11h30-11h50 Debret The redox state of iron in serpentine from Western Alps ophiolites 11h50-12h10 Lunch 9 may (continuation) Geodynamics Chair: T. Morishita 14h-14h20 Dick The SW Indian Ridge - remelting the Gondwanan mantle 14h20-14h40 Morishita Petrological evidence for arc-metasomatized peridotites beneath the mid-ocean ridges 14h40-15h Jean The Coast Range Ophiolite: Evaluating ophiolite genesis at subduction zones, melt extraction history, enrichment processes, and capturing the MOR-SSZ transition 15h-15h20 Ionov The Role of the Mantle Lithosphere in the History and Dynamics of Central Mongolia 15h20-15h40 Menzies Cracking cratons & the China Syndrome 15h40-16h Short Poster Presentations 16h-18h30 Poster session with Moroccan pastries 10 may Deformation in the mantle lithosphere -1 Chair: A. Tommasi 9h-9h20 Hansen The interplay between deformation and microstructure in olivine-rich rocks 9h20-9h40 Hidas Ductile strain localization in the shallow subcontinental lithospheric mantle during the final exhumation of the Ronda massif (Betic Cordillera, S-Spain) 9h40-10h Krukenberg Correlations between strain geometry, shape fabric, and crystallographic preferred orientation revealed by microtomography and textural analyses: heterogeneous deformation of mantle xenoliths from Marie Byrd Land, Antarctica 10h-10h20 Jung Petrofabrics of olivine and chlorite in chlorite peridotites and implications for seismic anisotropy in subduction zone 10h20-10h50 Break Deformation in the mantle lithosphere -2 Chair: L. Hansen 10h50-11h10 Chatzaras Rheological properties of the upper mantle section of San Andreas Fault system: Evidence from spinel peridotite xenoliths 11h10-11h30 Baptiste Deformation, seismic properties and water contents of the lithospheric mantle beneath the East African Rift, North Tanzania 11h30-11h50 Czertowicz Ultra-depleted, ultra-deformed peridotite emplaced onto the New Zealand Gondwana margin 11h50-12h10 Liptai Understanding the complex physico-chemical features of the upper mantle beneath the Nógrád-Gömör Volcanic Field (Northern Pannonian Basin) - A study on peridotite xenoliths 12h30-14h Lunch 14h-14h20 Short Poster Presentations 14h20-16h Poster session 15h40-16h Coffee/tea at Poster session Mantle petrology Chair: F. Parat 16h00-16h20 Youbi Cr-spinels crystal chemistry in Morocco and Libya mantle xenoliths 16h20-16h40 Klemme The garnet-spinel transition in Lherzolite and Harzburgite 16h40-17h Dygert A possible difference in cooling rates recorded in REE in coexisting pyroxenes in peridotites from ophiolites and mid-ocean ridges 17h-17h20 Korsakov Diamond and graphite-bearing eclogite xenoliths from Udachnaya East kimberlite pipe 17h20-17h50 Ozawa Contrasting P-T histories recorded in exhumed mantle peridotites and its implication in lithosphere-asthenosphere interaction 17h50-18h10 Downes Textures of sub-continental mantle peridotite rocks revisited 11 may Sulfides & PGE -1 Chair: O. Alard 9h-9h20 Aubach Metasomatic processes in the mantle wedge: New insights from Eastern Alpine peridotites 9h20-9h40 Bragagni Re-Os in single sulfides vs. whole rock: mantle melting, metasomatism and kimberlitic overprinting in Somerset (Rae Craton, Canada) 9h40-10h Szabo History of the subcontinental lithospheric mantle beneath the Carpathian- Pannonian region 10h-10h20 Mundl Os and Hf isotopes in mantle xenoliths from Southern Patagonia: Evidence for Proterozoic SCLM fragments 10h20-10h50 Break Sulfides & PGE -2 Chair: C. Szabo 10h50-11h10 Senda Os isotope ratios and PGE abundances of troctolites from Pacific oceanic lithosphere 11h10-11h30 Kochergina Rhenium-osmium isotopic composition of mantle xenoliths from the Bohemian Massif 11h30-11h50 Wainwright Unravelling metasomatic effects on Re-Os ages: A case study from Letlhakane (Botswana) 11h50-12h10 Coggon 190Pt-186Os versus 187Re-187Os: A single-grain to whole-rock scale study of >3.8 Ga peridotites and chromitites from Earth's oldest layered intrusion 12h30-14h Lunch Sulfides & PGE -3 Chair: S. Aulbach 14h-14h20 Alard Sulfur isotopic composition of the Sub-Continental Lithosphere Mantle (SCLM) 14h20-14h40 Ishikawa Osmium isotope heterogeneity in the Pacific uppermost mantle 14h40-15h Liu Relic of Paleoproterozoic mantle lithosphere beneath southeastern (SE) China: constraints from the Sr-Nd-Hf-Os isotopes of Mingxi mantle xenoliths 15h-15h20 Williams Iron isotope tracing of mantle mineralogical heterogeneity 15h20-15h40 Break Moroccan peridotites Chair: J.L. Bodinier 15h40-16h Tommasi The Beni Bousera peridotite: an oblique-slip shear zone thinning the lithospheric mantle 16h-16h20 Hajjar The Sulfide and Graphite Mineralization of the Ultramafic Massif of Beni Bousera (Internal Rif, Morocco) 16h20-16h40 Triantafyllou New interpretation of the tectonic & metamorphic evolution of the Iriri- Tachakoucht arc complex (Sirwa inlier, Moroccan Anti-Atlas) 16h40-17h Bhilisse Mantle serpentinization in the Neoproterozoic ophiolite of Bou Azzer El Graara (Bou Azzer mining district, Central Anti-Atlas, Morocco) Poster presentations - 9 May Chair: J.L. Bodinier Subcontinental mantle lithosphere / melt-rock reactions Abe Petrology of the peridotite xenoliths from lower oceanic lithosphere Afanasyev On two genetic types of diamonds Akizawa Diversity of melt migration processes in the mantle along a mid-ocean ridge axis: implications from the northern Oman ophiolite Arnoux Nature and evolution of the upper mantle of the Middle Atlas (Morocco) constrained by a petrological study of mantle xenoliths Baziotis Phosphorus zoning as a recorder of crystal growth kinetics:implications from secondary olivine and pyroxene in mantle xenoliths from Cima Volcanic Field Borghini Near-solidus phase assemblages and partial melting behavior of a natural pyroxenite: an experimental study at 1-1.5 GPa Chanouan Petrological Characteristics of Mantle Xenoliths from the Quaternary Basaltic District of Azrou- Timahdit, Middle Atlas, Morocco Chetouani Diversity of mafic layers in the Beni Bousera massif and its relation with the peridotite structure and evolution Dygert Decoupling among trace elements and Ni during melt percolation and melt-rock reaction in the mantle: An example from