• GEOCHEMISTRY OF SOUTH AFRICAN ON- AND OFF-CRATON, GROUP I AND GROUP II KIMBERLITES: PETROGENESIS AND SOURCE REGION EVOLUTION 

  Becker M.; Le Roex A.P. (2006)

  Bulk-rock geochemical compositions of hypabyssal kimberlites, emplaced through the Archaean Kaapvaal craton and Proterozoic Namaqua-Natal belt, are used to estimate close-to-primary magma compositions of Group I kimberlites ...
• SUBMARINE PINGOES: INDICATORS OF SHALLOW GAS HYDRATES IN A POCKMARK AT NYEGGA, NORWEGIAN SEA 

  Hovland M.; Svensen H. (2006)

  Complex pockmarks up to 300 m wide and 12 m deep are located in the Nyegga area in the Norwegian Sea. Bathymetric data and direct visual documentation and sampling with ROVs (remotely operated vehicles) have shown that ...
• SLIDE STRUCTURE AND ROLE OF GAS HYDRATE AT THE NORTHERN BOUNDARY OF THE STOREGGA SLIDE, OFFSHORE NORWAY 

  Brown H.E.; Holbrook W.S.; Hornbach M.J.; Nealon J. (2006)

  The Storegga Slide off the coast of Norway is one of the largest underwater slide complexes known and has been proposed as a significant source of past methane release into the atmosphere. We present pre-stack depth-migrated ...
• FLUID FLOW RELATED FEATURES AS AN INDICATOR OF POTENTIAL GAS HYDRATE ZONE: WESTERN CONTINENTAL MARGIN OF INDIA 

  Shankar U.; Thakur N.K.; Ashalatha B. (2006)

  Multichannel seismic reflection data from the continental margin of western India suggest the potential presence of fluid expulsion features, which may or may not be associated with gas hydrates. No typical bottom simulating ...
• ROLES OF MELTING AND METASOMATISM IN THE FORMATION OF THE LITHOSPHERIC MANTLE BENEATH THE LEIZHOU PENINSULA, SOUTH CHINA 

  Yu J.-H.; Xu X.; O'Reilly S.Y.; Zhang M.; Griffin W.L. (2006)

  This study characterizes the nature of fluid interaction and melting processes in the lithospheric mantle beneath the Yingfengling and Tianyang volcanoes, Leizhou Peninsula, South China, using in situ trace-element analyses ...
• TEMPERATURE DEPENDENCE OF ELASTIC P- AND S-WAVE VELOCITIES IN POROUS MT. UNZEN DACITE 

  Scheu B.; Spieler O.; Dingwell D.B.; Kern H. (2006)

  Laboratory measurements of elastic properties of volcanic rocks are crucial for the modelling of volcano seismic activity. Compared to the large database reported in the literature for sedimentary, igneous and metamorphic ...
• THE GENESIS OF INTERMEDIATE AND SILICIC MAGMAS IN DEEP CRUSTAL HOT ZONES 

  Annen C.; Blundy J.D.; Sparks R.S.J. (2006)

  A model for the generation of intermediate and silicic igneous rocks is presented, based on experimental data and numerical modelling. The model is directed at subduction-related magmatism, but has general applicability ...
• MODELS OF LARGE-SCALE VISCOUS FLOW IN THE EARTH'S MANTLE WITH CONSTRAINTS FROM MINERAL PHYSICS AND SURFACE OBSERVATIONS 

  Steinberger B.; Calderwood A.R. (2006)

  Modelling the geoid has been a widely used and successful approach in constraining flow and viscosity in the Earth's mantle. However, details of the viscosity structure cannot be tightly constrained with this approach. ...
• GEOCHEMISTRY OF PYROXENITIC AND HORNBLENDITIC XENOLITHS IN ALKALINE LAMPROPHYRES FROM THE SPANISH CENTRAL SYSTEM 

  Orejana D.; Villaseca C.; Paterson B.A. (2006)

  The alkaline lamprophyres and diabases of the Spanish Central System carry a heterogeneous suite of xenoliths which includes scarce pyroxenitic and hornblenditic types that can be divided in two groups: (a) pyroxenite ...
• A RESERVOIR OPERATION SCHEME FOR GLOBAL RIVER ROUTING MODELS 

  Hanasaki N.; Kanae S.; Oki T. (2006)

  A global river discharge simulation was conducted that accounted for 452 individually operated reservoirs by locating them on the digital global river network map of TRIP, a global river routing model. An operating rule ...
• REE AND ND ISOTOPE STRATIGRAPHY OF A LATE JURASSIC CARBONATE PLATFORM, EASTERN PARIS BASIN, FRANCE 

  Négrel P.; Casanova J.; Brulhet J. (2006)

  Rare earth elements (REE) and Nd isotopes on the labile fraction of the Callovian-Oxfordian to Tithonian Jurassic carbonate platform of the eastern Paris Basin were used to reconstruct the composition of the contemporaneous ...
• 2.5D RESISTIVITY MODELING OF EMBANKMENT DAMS TO ASSESS INFLUENCE FROM GEOMETRY AND MATERIAL PROPERTIES 

  Sjödahl P.; Dahlin T.; Zhou B. (2006)

  Repeated resistivity measurement is a potentially powerful method for monitoring development of internal erosion and anomalous seepage in earth embankment dams. This study is part of a project to improve current longterm ...
• MINERALOGY, PETROGRAPHY AND WHOLE-ROCK GEOCHEMISTRY OF THE TERTIARY GRANITIC INTRUSIONS IN THE EASTERN PONTIDES, TURKEY 

  Arslan M.; Aslan Z. (2006)

  Granitic intrusions in Eocene and post-Eocene volcanic rocks outcrop in the Northern and Southern Zones of the Eastern Pontides, NE Turkey. Intrusions in the Northern Zone extend NW-SE whereas those in the Southern Zone ...
• GEOCHEMICAL CHARACTERISTICS OF THE COMPOSITE KAçKAR BATHOLITH GENERATED IN A NEO-TETHYAN CONVERGENCE SYSTEM, EASTERN PONTIDES, TURKEY 

  Boztuǧ D.; Erçin A.I.; Kuruçelik M.K.; Göç D.; Kömür I.; Iskenderoǧlu A. (2006)

  The composite Kaçkar batholith, of Cretaceous to Late Eocene age, consists of various intrusions derived from different geodynamic settings ranging from early to mature arc, through collision, to post-collisional extension ...
• ERUPTION OF THE DACITE TO ANDESITE ZONED MATEARE TEPHRA, AND ASSOCIATED TSUNAMIS IN LAKE MANAGUA, NICARAGUA 

  Freundt A.; Kutterolf S.; Wehrmann H.; Schmincke H.-U.; Strauch W. (2006)

  The dacite to andesite zoned Mateare Tephra is the fallout of a predominantly plinian eruption from Chiltepe peninsula at the western shore of Lake Managua that occurred 3000-6000 years ago. It comprises four units: Unit ...
• EFFICACY OF A HYDROLOGIC MODEL IN SIMULATING DISCHARGE FROM A LARGE MOUNTAINOUS CATCHMENT 

  Thorne R.; Woo M.-k. (2006)

  Three sets of climatic input data from weather station observations and reanalysis products were compared for use in the simulation of streamflow for a large mountainous basin in subarctic Canada. These data sets are ...
• CORE SURFACE FLOW MODELLING FROM HIGH-RESOLUTION SECULAR VARIATION 

  Holme R.; Olsen N. (2006)

  Data from the Ørsted and CHAMP satellites have allowed modelling of the geomagnetic secular variation (SV) with unprecedented accuracy. The spectrum of the SV is consistent with generation by advectively dominated processes. ...
• THE EFFECTS OF SMALL AMOUNTS OF H2O, CO2 AND NA2O ON THE PARTIAL MELTING OF SPINEL LHERZOLITE IN THE SYSTEM CAO-MGO-AL2O3-SIO2 ± H2O ± CO2 ± NA2O AT 1·1GPA 

  Liu X.; O'Neill H.St.C.; Berry A.J. (2006)

  The effects of small amounts of H2O (<4wt % in the melt) on multiply saturated partial melting of spinel lherzolite system cao-mgo-al2O3-SiO2 ± Na2O ± CO2 have been determined at 1·1GPa in the piston-cylinder apparatus. ...
• CHAOS - A MODEL OF THE EARTH'S MAGNETIC FIELD DERIVED FROM CHAMP, ØRSTED, AND SAC-C MAGNETIC SATELLITE DATA 

  Olsen N.; Tøffner-Clausen L.; Lühr H.; Mandea M.; Rother M.; Choi S.; Sabaka T.J. (2006)

  We have derived a model of the near-Earth magnetic field (up to spherical harmonic degree n = 50 for the static field, and up to n = 18 for the first time derivative) using more than 6.5 yr of high-precision geomagnetic ...
• GAS PERCOLATION IN UPPER-CRUSTAL SILICIC CRYSTAL MUSHES AS A MECHANISM FOR UPWARD HEAT ADVECTION AND REJUVENATION OF NEAR-SOLIDUS MAGMA BODIES 

  Bachmann O.; Bergantz G.W. (2006)

  Several crystal-rich, intermediate to silicic magmas erupted at arc volcanoes record a reheating event shortly prior to eruption: they provide evidence for remobilization of crystal mushes by mafic magmas. As hybridization ...

View more