J.M. Ferry's research while affiliated with Johns Hopkins University and other places

Publication (1)

Article
The progressive metamorphism of a single stratigraphic unit of impure carbonate rock in south-central Maine from conditions of the chlorite zone to conditions of the sillimanite zone involved the following sequence of prograde reactions: muscovite + ankerite + albite rt arrow biotite + calcite + quartz + anorthite component of plagioclase; ankerite...

Citations

... These processes take place in the crust at depths of tens of kilometers, and as such fluid fluxes cannot be measured directly but are often estimated based on indirect evidence. A simple way to quantify metamorphic fluids is the water/rock or fluid/rock ratio, that is the total amount of water or fluid needed to produce an observed change in for example a rock's oxygen isotope ratio (Taylor, 1977) or carbon content (Ferry, 1987). Fluid/rock ratios do not necessarily imply any fluid movement, and in that sense they do not describe a fluid flux. ...