In the precipitation zone, the porosity calculated was only slightly lower, as it was an average of the entire ROI-middle, which included portions of the unreacted material.
The 1D single continuous model either underestimated the remaining connected porosity in the precipitation zone, or overestimated the amount of precipitate.
They have been implicated in the precipitation of bad attacks, rather like thunderstorms have.
Often, acidic compounds from these emissions are returned to the surface in the precipitation that falls (see acid rain).
Solutions of the alkali borates and the addition of metal ions such as calcium and magnesium result in the precipitation of yet other borate compounds.
The commercial uses of alums mainly stem from the hydrolysis of the aluminum ions, which results in the precipitation of aluminum hydroxide.
Sr addition results in the precipitation of Al-Sr.
Final pH in the precipitation must be below 11.
Also, several factors operate concurrently in the precipitation of individual attack on most instances.
This resulted in the precipitation under appropriate conditions of authigenic kaolinite and first phase quartz overgrowths.
The seasonal model captured higher and lower amounts in the precipitation variations.
