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Now showing items 5187-5206 of 39002
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(2001)A total of 34 solubility experiments using the ''model''-pelite mineral assemblage microcline + low albite + andalusite + quartz were performed at 600°C and 0.2 GPa over a total chloride range of 0.03-2.9 molal. The ...
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(2001)The subject of experimental tectonics is the study of geodynamic processes by means of laboratory scale models. The first roughly scaled experiments were performed by Sir James Hall about two centuries ago, in the intellectual ...
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(1989)There are two possible approaches to the study of nonlinear phenomena. The first is to gear the observation system to the observation of nonlinear effects (multiple harmonics, sum and difference harmonics, and so on) that ...
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(1995)We have performed experiments aimed at testing the calibration of oxygen barometers for the garnet peridotite [garnet (Gt)-olivine (Ol)-orthopyroxene (Opx)] phase assemblage. These involved equilibrating a thin layer of ...
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(1997)We present results of an experimental study to determine the nature of minimum to near-minimum melt compositions in equilibrium with upper mantle peridotite mineralogy at 1 GPa. We confirm earlier conclusions that anhydrous ...
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EXPERIMENTALLY BASED WATER BUDGETS FOR DEHYDRATING SLABS AND CONSEQUENCES FOR ARC MAGMA GENERATION (1998)Phase diagrams of hydrous mid-ocean ridge (MOR) basalts to 330 km depth and of hydrous peridotites to 250 km depth are compiled for conditions characteristic for subduction zones. A synthesis of our experimentally determined ...
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(2005)Fluid-saturated subsolidus experiments from 2·0 to 6·5 GPa, and from 680 to 800°C have been performed on three model peridotites in the system Na2O-CaO-FeO-MgO-Al2O 3-SiO2- H2O (NCFMASH). Amphibole and chlorite coexist up ...
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(2002)An earlier version of the phlogopite geofluorimeter and experimental data on the fluorine distribution between a variety of mica end members were used to develop biotite, Li-mica, and muscovite geofluorimeters, which take ...
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(2004)Modern bone and enamel powders have reacted at 301 K with 13C- and 18O-labelled waters under inorganic and microbial conditions. The aim of the study is to investigate the resistance of stable isotope compositions of ...
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(1996)A new method for modeling fractional crystallization processes that involve olivine (ol), plagioclase (plag) and augite (aug) is presented. This crystallization assemblage is the major control on the chemical variations ...
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(2003)Results of thermal convection experiments in a rotating fluid with a geometry similar to the Earth's core tangent cylinder are presented. We find four different states. In order of increasing Rayleigh number, these are: ...
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(2002)Simple experiments have been conducted to study the strain evolution in lava dome cross sections. A viscous fluid is injected vertically from a reservoir into a feeding conduit. Silicone putty is used as analogue magma. ...
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(2003)Large ocean island volcanoes frequently develop productive rift zones located close to unstable flanks and sites of older major sector collapses. Flank deformation is often caused by slip along a decollement within or ...
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(1997)Pyrolysis experiments were conducted on immature petroleum source rocks under various conditions to evaluate the role of water in petroleum formation. At temperatures less than 330°C for 72 h, the thermal decomposition of ...
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(1990)In contrast to classical wide-angle deep seismic profiling (WDSP) using two ships, in the single-ship version (WDSP-1) the ship tows at least two detector streamers, one in the near zone (NZ) and the other in the far zone ...
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(2002)We present centrifuge experiments to study the surface deformation induced by shallow pluton emplacement in a rheologically stratified crust. Sand simulates the topmost brittle crust; plastilina and denser silicone represent ...
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(2003)The global-scale empirical dependence between cumulative frequency and size of volcanic eruptions (VEs) [1] is explained in this work. This frequency is proportional to the volume of erupted ash to a power of 0.7. It is ...
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(1990)The inverse problems of gravimetry and magnetometry have been examined in earlier papers for the case in which we have approximate measured values of some finite set of bounded linear functionals defined on the sources of ...
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(IOP Publishing, 2015)The article describes the data in exploration and local forecast of gold-ore deposits based on typomorphic pyrite properties. The pyrite properties: crystal shape, impurity-elements and thermal EMF change in relation to ...
Now showing items 5187-5206 of 39002