Dissolution of Corundum and Andalusite in H2O-Saturated Haplogranitic Melts at 800{degrees}C and 200 MPa: Constraints on Diffusivities and the Generation of Peraluminous Melts |
| |
| Authors: | ACOSTA-VIGIL ANTONIO; LONDON DAVID; DEWERS THOMAS A; MORGAN GEORGE B VI |
| |
| Institution: | SCHOOL OF GEOLOGY AND GEOPHYSICS, UNIVERSITY OF OKLAHOMA, NORMAN, OK 73019, USA |
| |
| Abstract: | The mechanisms and kinetics of equilibration between peraluminousminerals and granitic melt were investigated experimentallyby the dissolution of corundum and andalusite into H2O-saturatedmetaluminous haplogranitic melt at 800°C and 200 MPa. Mineraland haplogranitic glass rods were juxtaposed inside platinumcapsules, and then subjected to experimental conditions fortimes ranging from 12 to 2900 h. Upon melting, the mineral –meltinterface retreats with the square root of time. The compositionof the melt at the interface changes with time, but its ASIaluminum saturation index = molar Al2O3/(CaO + Na2O + K2O)]remains constant at |
| |
| Keywords: | |
| 本文献已被 Oxford 等数据库收录！ |
|
