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Re: radium in Phreeqc database




Greg Anderson has been working on a translation of the Lawrence Livermore
thermo data that is used in EQ3/6 and Geochemists Workbench. It has a
limited set of radium species and minerals. It may serve as a start, but I
don't think it is complete.

It probably doesn't help you particularly, but this database should be much
better for higher temperature. It requires a new version of PHREEQC, which
will be version 2.3 and hopefully be out this month. Here is a preliminary
version of the program and the database.

David

(See attached file: llnl.dat)(See attached file: phreeqc.exe)

David Parkhurst (dlpark@xxxxxxxx)
U.S. Geological Survey
Box 25046, MS 413
Denver Federal Center
Denver, CO 80225


                                                                                                                                       
                      "Tom Doyle"                                                                                                      
                      <tadoyle@xxxxxxx         To:      <dlpark@xxxxxxxx>                                                              
                      .com>                    cc:                                                                                     
In-Reply-To: <000801c05a36$88c4b320$96d1fea9@xxxxxxxx>
                                               Subject: radium in Phreeqc database                                                     
                      11/29/00 10:59                                                                                                   
                      AM                                                                                                               
                                                                                                                                       
                                                                                                                                       



Hello -

I assume this is David Parkhurst's address.

I took the IGWMC class in geochem modeling in Golden back in 1995 (when
Phreeqc was just about to be introduced), and have done a fair bit of
modeling on mining projects since then. I am now working on a project at an
ISL uranium mine, and need to find a database for Phreeqc that includes
radium species. I have heard that such a database has been developed, and
am wondering if you know how I might obtain it.

Please let me know at your earliest convenience.

Thanks,
Tom Doyle
Doyle Environmental Consultants
305 Faculty Lane
Corrales, New Mexico  87048
voice (505) 922-8703
fax  (505) 922-8704

Attachment: llnl.dat
Description: Binary data

Attachment: phreeqc.exe
Description: Binary data



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