11 research outputs found
Mineralogical approaches to fundamental crystal dissolution kinetics - Dissolution of an A3B structure
Kinetic Justification of the Solubility Product: Application of a General Kinetic Dissolution Model
The dependence of labradorite dissolution and Sr isotope release rates on solution saturation state
Peer Reviewedhttps://deepblue.lib.umich.edu/bitstream/2027.42/155826/1/Taylor_et_al_2000_Dependence_of_labradorite.pd
Kinetics of dissolution and Sr release during biotite and phlogopite weathering
Peer Reviewedhttps://deepblue.lib.umich.edu/bitstream/2027.42/155825/1/Taylor_et_al_2000_Kinetics_of_dissolution.pd
Slowly cooled microgabbros 15065 and 15555
Experimental equilibration of 15555 and 15065 in high-purity iron capsules in a closed
system causes little change in the sample's bulk composition. Comparison of mineral zoning trends
with the experimental sequence suggests that the early crystallizing phases in the rock maintained
surface equilibrium with the liquid. Olivine and pyroxene chemistry indicates that 15555 cooled
slightly more rapidly than 15065 which cooled at ~0.2-0.3°C/day. Even though the cooling rates are
slow, significant amounts of accumulated olivine or pyroxene are not found in these rocks-they
represent liquid compositions. These liquids appear to have been fractionated during ascent through
the crust (15065) or to have been derived from an olivine-pyroxene source (15555) of Fe/Fe+ Mg ~
0.73 at a depth between 150-200 km