Sounds like something in your formulation is inconsistent. One example
would be Cl decreasing from solution 1 to solution 2, halite is the Cl
source, but halite is required to dissolve. Look through each element and
consider whether it increases or decreases and whether there is a mineral
that is a possible source or sink for each element. Another place to look
is with redox. If redox is involved, try adding O2(g) as a reactant that
can dissolve or precipitate and see if that points the way to your problem.
If you send me the input file, I'll try to take a look.
David
David Parkhurst (dlpark@xxxxxxxx)
U.S. Geological Survey
Box 25046, MS 413
Denver Federal Center
Denver, CO 80225
h2osoft
Sent by: Michele To: David L Parkhurst/WRD/USGS/DOI@xxxx
Y Crouse cc: gs-w_h2osoft@xxxxxxxx
In-Reply-To: <OF3D9E807B.DAF3204F-ON85256A30.00616249@xxxxxxxx>
Subject: problems with uncertainty term in inverse model
04/16/01 10:45
AM
----- Forwarded by Michele Y Crouse/WRD/USGS/DOI on 04/16/01 01:43 p.m.
-----
"Barbara Coto
Suarez" To: h2osoft@xxxxxxxx
<barbarapiri@xxx cc:
In-Reply-To: <OF3D9E807B.DAF3204F-ON85256A30.00616249@xxxxxxxx>
mail.com> Subject:
04/16/01 01:34
p.m.
Hello. I am a Spanish student working with
Phreeqc. I am trying to do an inverse
modelling and I have problems with the
uncertainty term, I am not able to run the
program unless I specify a value of 1, and
this means a really big error. Can you please
give me any advise about this?. I can send
you my input file if you need it.
Thank you very much.
Barbara Coto Suarez
Tu correo gratis en MixMail http://www.mixmail.com
Ayudanos a ganar los iBest! http://www.ya.com/ibest
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/msg00216.html
Email:dlpark@usgs.gov
Last modified: $Date: 2005-09-13 21:04:21 -0600 (Tue, 13 Sep 2005) $
Visitor number 2833 since Jan 22, 1998.