TY - JOUR AU - Jenkins, David AB - The hydration of peridotites modelled by the system H2O-CaO-MgO-Al2O3-SiO2 has been treated theoretically after the method of Schreinemakers, and has been investigated experimentally in the temperature range 700°–900° C and in the pressure range of 8–14 kbar. In the presence of excess forsterite and water, the garnet- to spinel-peridotite transition boundary intersects the chlorite dehydration boundary at an invariant point situated at 865±5° C and 15.2±0.3 kbar. At lower pressures, a model spinel lherzolite hydrates to both chlorite- and amphibole-bearing assemblages at an invariant point located at 825±10° C and 9.3±0.5 kbar. At even lower pressures the spinel-to plagioclase-peridotite transition boundary intersects the dehydration curve for amphibole+forsterite at an invariant point estimated to lie at 855±10° C and 6.5±0.5 kbar. TI - Experimental phase relations of hydrous peridotites modelled in the system H2O-CaO-MgO-Al2O3,-SiO2 JF - Contributions to Mineralogy and Petrology DO - 10.1007/BF00636520 DA - 2004-10-28 UR - https://www.deepdyve.com/lp/springer-journals/experimental-phase-relations-of-hydrous-peridotites-modelled-in-the-Y0Xc1MPEFF SP - 166 EP - 176 VL - 77 IS - 2 DP - DeepDyve ER -