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Shallow Mantle Composition and Dynamics Fifth International Orogenic Lherzolite Conference

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Shallow Mantle Composition and Dynamics Fifth International Orogenic Lherzolite Conference AGU Chapman Conference on Shallow Mantle Composition and Dynamics Fifth International Orogenic Lherzolite Conference Mount Shasta, CA, USA 22-26 September 2008 1 AGU Chapman Conference on Shallow Mantle Composition and Dynamics Fifth International Orogenic Lherzolite Conference 31st Anniversary of Chapman Conference on Partial Melting in the Earth's Upper Mantle MOUNT SHASTA RESORT, MOUNT SHASTA, CALIFORNIA, USA 22–26 SEPTEMBER 2008 Program Committee (AKA Organizing Committee, most affiliations as above) Peter Kelemen, Martin Menzies, Jean-Louis Bodiner, Henry Dick, Françoise Boudier, Greg Hirth, Tim Grove (MIT), Christophe Lécuyer (Université Claude Bernard Lyons, France), Andrea Tommasi (Université de Montpellier, France), Eiichi Takazawa (Niigata University, Japan) Conveners (AKA Scientific Committee) Principal Conveners: Peter B. Kelemen (Columbia University) and Henry J.B. Dick (Woods Hole Oceanographic Institution, WHOI) Primary Conveners Martin Menzies (Royal Holloway University, U.K.), Jean-Louis Bodiner (Université de Montpellier, France), Masaaki Obata (Kyoto University, Japan), Giovanni Piccardo (Università di Genova, Italy), Dave Kohlstedt (University of Minnesota), Greg Hirth (WHOI), Françoise Boudier (Université de Montpellier, France); Additional Conveners: Shoji Arai (Kanazawa University, Japan), Fred Frey (MIT), Al Hofmann (Max Plank, Mainz, Germany), Adolphe Nicolas (Université de Montpellier, France), Kaz Ozawa (Tokyo University, Japan), Elisabetta Rampone (Università de Genova, Italy), Nobu Shimizu (WHOI), Riccardo Vannucci (Università di Pavia, Italy), Reinoud Vissers (Utrecht University, Netherlands) 2 Meeting at a Glance Sunday, 21 September 2008 6:00 p.m. – 8:00 p.m. Welcome Reception & Buffet Dinner Monday, 22 September 2008 7:15 a.m. – 8:15 a.m. Continental Breakfast 8:15 a.m. – 8:30 a.m. Conference Introduction 8:30 a.m. – 10:00 a.m. Oral Sessions 10:00 a.m. – 10:30 a.m. Coffee Break 10:30 a.m. – 12:30 p.m. Oral Sessions 12:30 p.m. – 1:30 p.m. Lunch 1:30 p.m. – 3:00 p.m. Oral Sessions 3:00 p.m. – 3:30 p.m. Coffee Break 3:30 p.m. – 5:00 p.m. Oral Sessions 5:00 p.m. – 6:30 p.m. Poster Session and Refreshments 6:30 p.m. – 7:30 p.m. Dinner (Banquet Style) 7:30 p.m. – 8:30 p.m. Oral Sessions Tuesday, 23 September 2008 7:30 a.m. – 8:30 a.m. Continental Breakfast 8:30 a.m. – 10:30 a.m. Oral Sessions 10:30 a.m. – 12:00 p.m. Poster Session and Refreshments 12:00 p.m. – 1:00 p.m. Lunch 1:00 p.m. – 2:30 p.m. Oral Sessions 2:30 p.m. – 3:00 p.m. Coffee Break 3:00 p.m. – 5:00 p.m. Oral Sessions 5:00 p.m. – 5:30 p.m. Refreshment Break 5:30 p.m. – 7:30 p.m. Oral Sessions 7:30 p.m. –. Dinner (On your own) Wednesday, 24 September 2008 7:30 a.m. – 8:30 a.m. Continental Breakfast 8:30 a.m. – 10:00 a.m. Oral Sessions 10:00 a.m. – 10:30 a.m. Coffee Break 10:30 a.m. – 12:00 p.m. Oral Sessions 12:00 p.m. – 7:30 p.m. Field Trip (Lunch Provided) 7:30 p.m. – 8:30 p.m. Buffet dinner 3 Meeting at a Glance Thursday, 25 September 2008 7:30 a.m. – 8:30 a.m. Continental Breakfast 8:30 a.m. – 10:00 a.m. Oral Sessions 10:00 a.m. – 10:30 a.m. Coffee Break 10:30 a.m. – 12:30 p.m. Oral Sessions 12:30 p.m. – 1:30 p.m. Lunch 1:30 p.m. – 3:00 p.m. Oral Sessions 3:00 p.m. – 3:30 p.m. Coffee Break 3:30 p.m. – 5:00 p.m. Oral Sessions 5:00 p.m. – 6:30 p.m. Poster Session and Refreshments 6:30 p.m. – 7:30 p.m. Dinner (Banquet Style) 7:30 p.m. – 8:30 p.m. Oral Sessions Friday, 28 September 2007 7:30 a.m. – 8:30 a.m. Continental Breakfast 8:30 a.m. – 10:00 a.m. Oral Sessions 10:00 a.m. – 10:30 a.m. Coffee Break 10:30 a.m. – 12:30 p.m. Oral Sessions 12:30 p.m. – 1:30 p.m. Lunch 1:30 p.m. – 2:30 p.m. Oral Sessions 2:30 p.m. – 3:00 p.m. Coffee Break 3:00 p.m. – 5:00 p.m. Oral Sessions 5:00 p.m. – 6:30 p.m. Poster Session and Refreshments 6:30 p.m. – 7:30 p.m. Oral Sessions 7:30 p.m. – Dinner (On your own) 4 Program Overview Sessions and events will take place at the Mount Shasta Resort, Mount Shasta, CA. The Registration/Information Desk will be in Siskiyou foyer throughout the conference. SUNDAY, 21 SEPTEMBER 6:00 p.m. – 8:00 p.m. Welcome Reception Mount Shasta Resort, Outdoor Reception Area. All meeting attendees are invited to attend this kick-off event. Enjoy a relaxing evening with friends and colleagues. A buffet dinner will be provided and drinks will be available for purchase. MONDAY, 22 SEPTEMBER 7:15 a.m. Continental Breakfast Siskiyou Room 8:15 AM Welcome and Opening Remarks Siskiyou Room Convener: Peter Kelemen Session 1: Rheology, Chair: Kohlstedt 8:30 AM Warren, Jessica Observations of strain localization and olivine lattice preferred orientation in Josephine Peridotite Shear Zones 9:00 AM Skemer, Phil Microstructural and rheological evolution in naturally deformed peridotite mylonites 9:30 AM Obata, Masaaki Shear localization, seismic rupture and frictional melting, observed in a mylonitized ultramafic pseudotachylyte from Balmuccia peridotite, Ivrea Zone, N. Italy 10:00 AM Coffee Break 10:30 AM Newman, Julie Fabric and texture superposition in upper mantle peridotites, Red Hills, New Zealand 11:00 AM Tikoff, Basil Field-based constraints on rheology of the lithospheric mantle, Twin Sisters, Washington 11:30 AM Hirth, Greg The rheology of mantle shear zones 12:00 PM Behn, Mark Implications of grain-size evolution on the seismic structure of the oceanic upper mantle 12:30 PM Lunch Outdoor Reception Area 5 1:30 PM Tommasi, Andrea Structural reactivation during continental deformation due to anisotropy in the mantle lithosphere 2:00 PM Faul, Uli The Effect of Melt on the Deformation Behavior of Olivine 2:30 PM King, Dan Formation of melt-rich bands in experimentally deformed partially molten rock: Microstructural evolution and scaling to Earth’s mantle 3:00 PM Coffee Break 3:30 PM Kaczmarek, Mary-Alix The influence of melt impregnation and high temperature shear zone on peridotite geochemistry in the upper mantle (Lanzo Italy) 4:00 PM Le Roux, Veronique The Lherz Massif: 2 Ga history of mantle evolution 4:30 PM von der Handt, Annette On Plagioclase Peridotites and Silica Activity 5:00 PM Poster Session (with refreshments) – Rheology & Ridges Highland Room R-01 Sundberg, Marshall Diffusion Creep of Harzburgite R-02 Hanke, Karin An experimental investigation of the brittle-transition of Åheim dunites R-03 Homburg, Janelle The viscosity contrast between the lower crust and upper mantle R-04 Barnhoorn, Auke Low viscosity garnet layers in the upper mantle R-05 Kelemen, Peter A periodic shear-heating mechanism for intermediate- depth earthquakes in the mantle R-06 Obata, Masaaki Contrasting fabric patterns of olivine observed in garnet- and spinel-peridotite from a single ultramafic mass enclosed in acidic granulite, Moldanubiam zone, Czech Republic R-06 Piccardo, Giovanni Seismogenetic shear zones in the mantle lithosphere: ultramafic pseudo-tachylytes in the Lanzo peridotite (Western Alps, NW Italy). R-08 Toy, Virginia Evolution of a high-temperature, harzburgite-hosted shear zone, Twin Sisters massif, NW Washington R-09 Ueda, Tadamasa Mylonitized ultramafic pseudotachylyte and associated deformation textures, Balmuccia peridotite massif, Ivrea Zone, Italy 6 R-10 Andronicos, Christopher Melt-filled hybrid fractures in the oceanic mantle: Melt enhanced deformation during along-axis flow beneath a propagating spreading ridge axis R-11 Siftar, Gordana Grain Size Dependence of the Melt Geometry in Partially Molten Olivine Aggregates R-12 Vauchez, Alain How olivine [010]-fiber CPO did reconcile conflicting surface wave and body wave anisotropy observations in the Kerguelen Islands area R-13 Soustelle, Vincent Deformation and fluid-rock interactions in peridotite xenoliths from the Avacha calc-alkaline volcano, south Kamchatka subduction zone R-14 Kruckenberg, Seth Relationships between compositional layering, structural fabric, and the formation of melt pathways in the Twin Sisters complex, Washington State R-15 Blackman, Donna Numerical models of mantle flow & seismic anisotropy in Lau Basin R-16 Boudier, Francoise Large Shear Zones with No Relative Displacement R-17 Jagoutz, Oliver The rift-to-drift transition in the North Atlantic: A stuttering start of the MORB machine? 6:30 PM Dinner Outdoor Reception Area 7:30 PM Riches, Amy The Nature of Harzburgite-Lherzolite Outcorps; The Lherz Massif 8:00 PM Bodiner, Jean-Louis Chemical variations in tectonically-emplaced mantle rocks: superimposed effects of partial melting, melt redistribution and igneous refertilization 7 TUESDAY, 23 SEPTEMBER 7:30 a.m. Continental Breakfast Siskiyou Room Session 3: Mid-Ocean Ridges, Chair: Hirth 8:30 AM Takazawa, Eiichi Geochemical variability of the Fizh mantle section, Oman ophiolite with relevance to paleo-ridge segment structure 9:00 AM Boudier, Francoise Aspects of Ridge Segmentation in the Oman ophiolite 9:30 AM Piccardo, Giovanni Asthenosphere-lithosphere interaction at an extensional setting: Insights from the Alpine-Appenine peridotites 10:00 AM Rampone, Elisabetta Melt migration and intrusion during extension-related uplift of the Tallante lithospheric mantle (Betic Cordillera, SE Spain) as recorded by peridotite xenoliths 10:30 AM Poster Session (with coffee & pastries) – Ridges & Petrology, Highland Room RP-01 Hellebrand, Eric Chromite-hosted hydrous melt inclusions in oceanic dunites RP-02 Hellebrand, Eric Inherited depletion in the oceanic mantle RP-03 Tamura, Akihiro Geochemistry of residual peridotites from the Atlantis Massif, MAR 30°N: Inter- and intra-grain variations of clinopyroxene trace- element compositions
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