Browsing by Author "Ulmer P."
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Browsing by Author "Ulmer P."
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Kessel R.; Ulmer P.; Schmidt M.W.; Thompson A.B.; Pettke T. (2004)We have developed a novel analytical technique for diamond-trap experiments to directly analyze high-pressure, high-temperature fluid and melt compositions in equilibrium with mantle material. Experiments were conducted ...
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Schmidt M.W.; Ulmer P. (2004)Fluid saturated high-pressure experiments often result in strongly zoned experimental charges, this hinders experimentation in chemically homogeneous systems which in turn has serious consequences on equilibration, reaction ...
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Stalder R.; Ulmer P.; Thompson A.B.; Günther D. (2000)Experimental investigations in the system albite-water have been carried out to evaluate the accuracy of a new procedure to determine major-element solubilities in fluid phases and water solubilities in melts. The system ...
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Ulmer P.; Sweeney R.J. (2002)Experiments have been performed in the multicomponent (natural) bulk system to constrain the conditions of generation and differentiation of a K-rich group II kimberlite (now also referred to as orangeite). The group II ...
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Haefner A.; Aranovich L.Y.; Connolly J.A.D.; Ulmer P. (2002)We present experimental results constraining water activity in H2O-N2 fluids containing 40–90 mol% water at pressures of 6–13 kbar and temperatures of 680–840 °C. In the experiments, the displacement of the brucite dehydration ...
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Stalder R.; Ulmer P.; Thompson A.B.; Günther D. (2001)Fluids and melts have been trapped and analysed in high pressure experiments in the model mantle system MgO-SiO2-H2O at 6 to 10.5 GPa and 900 to 1,200 °C. The fluid/melt traps consisted of a diamond layer that was added ...
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Gardien V.; Thompson A.B.; Ulmer P. (2000)Biotite + plagioclase + quartz (BPQ) is a common assemblage in gneisses, metasediments and metamorphosed granitic to granodioritic intrusions. Melting experiments on an assemblage consisting of 24 vol. % quartz, 25 vol. % ...
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Stalder R.; Ulmer P. (2001)Run products from high pressure experiments at 800-1,200 C and 5-14 GPa (corresponding to depths of 150 to 420 km) on a serpentine bulk composition [close to Mg3Si2O5(OH)4] were analysed by optical microscopy, micro-Raman ...
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Villiger S.; Ulmer P.; Muntener O.; Thompson A.B. (2004)Two series of anhydrous experiments have been performed in an end-loaded piston cylinder apparatus on a primitive, mantle-derived tholeiitic basalt at 1.0 GPa pressure and temperatures in the range 1060–1330°C. The ...
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Villiger S.; Ulmer P.; Muntener O.; Thompson A.B. (2004)Two series of anhydrous experiments have been performed in an end-loaded piston cylinder apparatus on a primitive, mantle-derived tholeiitic basalt at 1·0?GPa pressure and temperatures in the range 1060–1330°C. The ...
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Konzett J.; Ulmer P. (1999)To investigate the pressure stability limit of phlogopite and the pressure–temperature stability field of its breakdown product K-richterite, experiments were conducted from 4.0 to 9.5 GPa and between 800°C and 1400°C in ...
Now showing items 1-11 of 11