ABSTRACTS

Abstract

- BIOGEOGRAPHY OF DEEP-WATER CHEMOSYNTHETIC ECOSYSTEMS - A CENSUS OF MARINE LIFE FIELD PROJECT THE POLAR FIELD PROGRAMME Maria Baker, Eva Ramirez-Llodra, Paul Tyler and Christopher German - STRUCTURE AND DEVELOPMENT OF MAR 30°N OCEANIC CORE COMPLEX Donna Blackman and John Collins - TRANSITION FROM A CONTINENTAL TO AN OCEANIC RIFT IN THE NORTHERN RED SEA E. Bonatti, G. Bortoluzzi, D. Brunelli, V. Ferrante, M. Ligi, M. Lopez Correa, F. Redini, A. Cipriani, G. Barabino, E. Carminati, A. Calafato, N.C. Mitchell, B. Sichler, M. Schmidt, N. Rasul, S.N. Al-Nomani, F. Bahreth, R.K. Farawati, S.M. Samir, A. Shawky, Y.M. Al-Hazmi - THE SUBSOLIDUS SPINEL TO PLAGIOCLASE TRANSITION IN MANTLE PERIDOTITES: NATURAL AND EXPERIMENTAL CONSTRAINTS Giulio Borghini, Patrizia Fumagalli and Elisabetta Rampone - SNAPSHOTS OF THE MAGMA PLUMBING SYSTEM FROM MELT INCLUSION AND RESIDUAL PERIDOTITES OF THE VEMA LITHOSPHERIC SECTION (MAR 11N) Daniele Brunelli,, Roberto Clocchiatti, Anna Cipriani, Marco Ligi, Emanuele Paganelli, L. Ottolini and Enrico Bonatti - WAY OF EMPLACEMENT AND COMPOSITIONAL VARIATIONS OF MAGMA AT THE MID-OCEANIC RIFT AXIS, KEYS FOR DECIPHERING MECHANISMS OF SLOW RATE SEA FLOOR SPREADING Françoise Chalot-Prat - KNIPOVICH RIDGE: VOLCANISM, TECTONICS AND HYDROTHERMALISM G. Cherkashov, K. Tamaki, B.Baranov, K. Crane, A. Egorov, C. German, D. Connelly, T. Nagamuna, B. Nesbitt, K. Okino, H. Sato, E. Gusev, N. Suschevskaya - FROM MAGMA-ENGORGED TO MAGMA STARVED “CONSTIPATED” LITHOSPHERE: THE MID ATLANTIC RIDGE FROM 40ºN TO THE EQUATOR A. Cipriani, D. Brunelli,, M. Ligi, E. Bonatti - SEGMENTATION OF THE GAKKEL RIDGE AS REVEALED IN POTENTIAL FIELDS DATA Bernard Coakley - AUTONOMOUS BATHYMETRIC DATA ACQUISITION IN THE EURASIAN BASIN – A ROLE FOR LANGRANGIAN SWATH MAPPING? Bernard Coakley and Nighat Amin - DISTRIBUTION AND NATURE OF VOLCANISM AND FAULTING ALONG THE WESTERN GAKKEL RIDGE (6°W - 30°E) James R. Cochran - ULTRASLOW SPREADING RIDGES H. Dick, J. Standish and J.Snow - A COMBINED RAYLEIGH WAVE, LOVE WAVE, AND GRAVITY STUDY OF THE UPPER MANTLE BENEATH THE REYKJANES RIDGE Robert A. Dunn, Andrew A. Delorey, James Gaherty - THE GEOLOGICAL SETTING OF HYDROTHERMAL VENT SITES ON THE GAKKEL RIDGE Margo Edwards and Henrietta Edmonds - SIMULATED DRILLING PROFILES FROM A MAGMA-POOR MARGIN ON LAND Anna Engström, Alasdair Skelton, Nathalie Grassineau and Carlo Dietl - ISOTOPE GEOCHEMISTRY OF GAKKEL RIDGE BASALTS AND ORIGIN OF A “DUPAL” SIGNATURE Steven L Goldstein, Gad Soffer, Charles H. Langmuir, Kerstin Lehnert, Yue Cail, Peter J. Michael - HELIUM-3, METHANE AND MANGANESE IN WATER COLUMN HYDROTHERMAL PLUMES ALONG THE ULTRA-SLOW SPREADING GAKKEL RIDGE, ARCTIC OCEAN D. W. Graham, H. N. Edmonds, D. P. Connelly, C. R. German, P. J. Michael, J. E. Lupton - INHERITED DEPLETION IN THE OCEANIC MANTLE INFERRED FROM PERIDOTITE COMPOSITION AND DISTRIBUTION ALONG GAKKEL RIDGE Eric Hellebrand, Jonathan E. Snow, Henry J.B. Dick, and Anette von der Handt - SEISMIC IMAGING OF OCEANIC CRUST OFF NEWFOUNDLAND: A POSSIBLE ANALOGUE FOR ULTRA-SLOW SPREADING RIDGES John R. Hopper, Thomas Funck, Brian E. Tucholke, Harm Van Avendonk, Donna J. Shillington, K.W. Helen Lau, Keith E. Louden, W. Steven Holbrook and Hans Christian Larsen - THE COMPOSITION OF THE MIDDLE AND LOWER CRUST AT ULTRASLOW RIDGES Astri JS Kvassnes, Colin Devey and Henry JB Dick - MAGMATIC ACTIVITY IN TIME AND SPACE WITHIN AN EMBRYONIC MAGMA-POOR OCEANIC CRUST Oliver Jagoutz, Othmar Müntener, Gianreto Manatschal, Daniela Rubatto, and Igor M. Villa - GEOPHYSICAL INVESTIGATIONS IN THE ARCTIC ALONG ULTRA- SLOW RIDGES A STATUS REPORT W. Jokat, M. Schmidt-Aursch, M. Urlaub and V. Leinweber - ANDREW BAIN TRANSFORM: MULTIPLE CONTINENTAL-TYPE TRANSFORM BOUNDARIES AT MID-OCEAN RIDGES M. Ligi, E. Bonatti,,, N.R. Grindlay, J. Sclater, S. Skolotnev, A. Peyve, G. Bortoluzzi, D. Brunelli,, A. Cipriani, R. Mercuri, F. Muccini, E. Paganelli, F. Zaffagnini, C. Takeuki, Y. Baramykov, N. Chamov, S. Erofeev, A. Eskin, S. Kolodyazhnyy, A. Pertsev, V. Semenov, V. Rastorgyev, N. Tsukanov, N. Turko, V. Yefimov and L. Zotov - MINERAL CHEMISTRY OF GABBROS FROM THE KANE CORE COMPLEX (MID-ATLANTIC RIDGE): FOCUSED CRUSTAL ACCRETION AND MELT-ROCK REACTION Johan Lissenberg and Henry Dick - OS ISOTOPIC COMPOSITIONS OF ABYSSAL PERIDOTITES FROM GAKKEL RIDGE: IMPLICATIONS FOR HETEROGENEITY IN THE OCEANIC MANTLE Chuanzhou Liu,, Jonathan Snow, Eric Hellebrand, Gerhard Brügmann, Anette von der Handt - THE TECTONO-MAGMATIC EVOLUTION OF OCEANIC CORE COMPLEXES: THE EXAMPLE OF THE CHENAILLET OPHIOLITE IN THE WESTERN ALPS Gianreto Manatschal and Othmar Müntener - VOLATILE AND TRACE ELEMENT CONSTRAINTS ON SOURCES OF GAKKEL MORB Peter J. Michael, Charles H. Langmuir, Steven L Goldstein, David W. Graham, Dmitri Ionov, Andrew K. Matzen - SPREADING ASYMMETRY ON THE GAKKEL RIDGE A.N. Minakov, V.Yu. Glebovsky and S.A. Mercouriev - MANTLE-CRUST EVOLUTION AND MAGMATIC ACTIVITY DURING CONTINENTAL BREAKUP AND OCEAN OPENING RECORDED BY THE EXTERNAL LIGURIDE OPHIOLITES (NORTHERN APENNINES, ITALY) Alessandra Montanini, Riccardo Tribuzio and Luigi Vernia - MANTLE DOMAIN BOUNDARIES IN NASCENT OCEANIC CRUST: EXAMPLES FROM THE SOUTHERN NORTH ATLANTIC AND THE ‘FOSSIL’ PIEMONT LIGURIAN OCEAN Othmar Müntener - ISOTOPE GEOCHEMISTRY OF LENA TROUGH F. Nauret, D. Weis, J.E. Snow - OCEANIC CORE COMPLEXES NEAR THE RODRIGUEZ TRIPLE JUNCTION: IMPLICATION FOR INTERACTION BETWEEN THE SEAFLOOR -HYDROTHERMAL ACTIVITY-ECOSYSTEM Kyoko Okino, Hidenori Kumagai - PRE-OCEANIC RIFTING IN THE JURASSIC LIGURIAN TETHYS, A FOSSILE SLOW SPREADING OCEAN: THE MANTLE PERSPECTIVE Giovanni B. Piccardo - MANTLE PROCESSES IN THE THERMAL BOUNDARY LAYER: EVIDENCE FROM THE LANZO SOUTH PERIDOTITE (NWITALY) Giovanni B. Piccardo, Alberto Zanetti, Eugenio Poggi, Gianluca Spagnolo, Othmar Müntener - THE BRACCO GABBROIC MASSIF: WITNESS OF AN INNER CORNER SIDE OF A JURASSIC LOW SPREADING RIDGE G. Principi°, B. Treves°°, S. Corti°, F. Menna° and S. Podetti - MANTLE PROCESSES AT SLOW SPREADING EXTENSIONAL SETTINGS: INSIGHTS FROM THE LONG-LIVED LITHOSPHERIC EVOLUTION OF THE ERRO-TOBBIO PERIDOTITES (LIGURIAN ALPS, ITALY) Elisabetta Rampone and Giulio Borghini - AUTONOMOUS EXPLORATION FOR HYDROTHERMAL VENTING ON THE GAKKEL RIDGE Robert Reves-Sohn, Hanumant Singh, Timothy Shank, Susan Humphris, Jeffrey Seewald, David Akin, Ella Atkins - GRAIN GROWTH IN SPINEL AND PLAGIOCLASE PERIDOTITES: A TIME-RESOLVED EXPERIMENTAL STUDY ON TEXTURAL EVOLUTION Monica Segata, Patrizia Fumagalli and Elisabetta Rampone - BIOLOGICAL STUDIES AT HYDROTHERMAL VENTS IN POLAR REGIONS VIA AUTONOMOUS EXPLORATION AND SEAFLOOR SAMPLING Timothy M. Shank - MICROSEISMICITY STUDIES YIELD INSIGHT INTO THE ACTIVE RIFTING PROCESSES OF ULTRASLOW-SPREADING RIDGES Vera Schlindwein, Christian Müller and Wilfried Jokat - INTRAPLATE MAGMATISM OF THE DE LONG ISLANDS: POSSIBLE RELATIONSHIPS WITH PROPAGATION OF THE ULTRASLOW-SPREADING GAKKEL RIDGE INTO PASSIVE CONTINENTAL MARGIN OF THE EASTERN ARCTIC BASIN S.A. Silantyev, O.G. Bogdanovskii, P.I. Fedorov, S.F. Karpenko, and Yu.A. Kostitsyn - ARCTIC LENA TROUGH IS NOT A MID-OCEAN RIDGE Jonathan E. Snow,, E. Hellebrand, A. von der Handt, F. Nauret,, Y. Gao, S. Feig, Z. Jovanovic, S. Gauger - RIDGE GEOMETRY AND MAJOR ELEMENT CHEMISTRY ALONG THE ULTRASLOW-SPREADING SOUTHWEST INDIAN RIDGE (9º-25ºE): THE ROLE OF PROCESS VERSUS SOURCE DURING MORB GENERATION Jared J. Standish, Henry J.B. Dick, Peter J. Michael, William G. Melson and Timothy O’Hearn - ORIGIN OF GARNET PYROXENITES FROM A NON-VOLCANIC RIFTED MARGIN (EXTERNAL LIGURIDE OPHIOLITES, NORTHERN APENNINE, ITALY) Riccardo Tribuzio, Alessandra Montanini and Matthew F. Thirlwall - DEVELOPMENT OF LONG-LIVED NORMAL FAULTS AT MAGMA-LIMITED MID-OCEAN RIDGES Brian E. Tucholke, Mark Behn, Roger Buck, Ran Qin and Jian Lin - A QUANTITATIVE ASSESSMENT OF MELT ORIGIN VERSUS SUBSOLIDUS FORMATION OF PLAGIOCLASE IN GAKKEL RIDGE PERIDOTITES Anette von der Handt, Jonathan E. Snow, and Eric Hellebrand - MULTISTAGE EVOLUTION OF THE FOREARC PERIDOTITES FROM THE IZU-BONIN-MARIANA SUPRA-SUBDUCTION ZONE Alberto Zanetti, Massimo D’Antonio, Piera Spadea, Riccardo Vannucci,, Nicola Raffone