|
Dr. Parkhurst:
I want to simulate the movement of an acidic water
through a calcite-bearing soil and graphically illustrate the "banding" that one
would see as Fe and Al hydroxides, and thereafter Mn oxides, precipitate.
But I am not sure how to setup the advection block to output the correct data to
the selected output file. I should be able to do this with one cell, and
move progressived pore volumes through. Somehow I need to graphically
display the amount of mineral versus a "distance" rather than a pore volume ( i
think). One thing I have done is produced a titration curve where I
reacted calcite with the water in increments, and indeed it shows Fe and Al
precipitating before Mn. But, it would be nice to have a "depth versus
mineral concentration" plot that shows the banding I have observed in the
field. Can you provide any suggestions? Thank you.
Dave
--------------------------------
David B. Levy, Ph.D. Summit Geoscience 3200 Azalea No. F4 Fort Collins, CO 80526 (970) 493-8600 |
Please note that some U.S. Geological Survey (USGS) information accessed through this page may be preliminary in nature and presented prior to final review and approval by the Director of the USGS. This information is provided with the understanding that it is not guaranteed to be correct or complete and conclusions drawn from such information are the sole responsibility of the user.
Any use of trade, product, or firm names in this publication is for descriptive purposes only and does not imply endorsement by the U.S. Government.
The URL of this page is:
https://wwwbrr.cr.usgs.gov/projects/GWC_coupled/phreeqc/mail/msg00007.html
Email:dlpark@usgs.gov
Last modified: $Date: 2005-09-13 21:04:21 -0600 (Tue, 13 Sep 2005) $
Visitor number [an error occurred while processing this directive] since Jan 22, 1998.