The following is a short discussion of water-nitrogen fluid inclusion data reduction that was held during May 1997


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Dear All:

I'm looking for software that can calculate isochores in the H2O-N2 system.....Can anyone help me...

Thanks a lot.
Henrik


Henrik Svensen
hsvensen@geologi.uio.no
Dept of Geology
University of Oslo
PO BOX 1047 Blindern
0316 Oslo
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Hi:

Don't think anyone has published a computer algoritm for this system. However, you can do it "long hand".

Try:

JAPAS ML and FRANCK EU , (1985) HIGH-PRESSURE PHASE-EQUILIBRIA AND PVT-DATA OF THE WATER-NITROGEN SYSTEM TO 673-K AND 250 MPA BERICHTE DER BUNSEN GESELLSCHAFT FUR PHYSIKALISCHE CHEMIE, Vol.89, No.7, pp.793-800

Jon

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Jon Naden
Fluid Inclusion Researcher, Geochemist and Ore Petrologist
British Geological Survey, Keyworth
Notts NG12 5GG
Tel: +44 (0)115 936 3163
Fax: +44 (0)115 936 3302
E-mail j.naden@bgs.ac.uk
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Dear Henrik and the rest who are interested,

I don't know if MacFlincor has already included N2 bearing fluids, but I have written some simple software for isochore calculation for a fluid with a large range of composition, I included about 20 different equations of state and it is still being extended (as long as new equations of state appear in literature). I also included correction for host mineral extension. If you can chose from 20 equations, you may need some advice for your best choice, which depends on your chemical system and TP conditions. I have tried to give some indications in the text of the program. The program is written for a IBM-compatible computer and I can send an excute-file to anyone who is interested. You can also consult some computer oriented geological journals (like Computers & Geosciences), you will find lots of interesting things in there.

Groetjes

Ronald

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Ronald J. Bakker
Geologisch-Palaontologisches Institut
Universitat Heidelberg
Im Neuenheimerfeld 234
D-69120 Heidelberg
Germany
tel (49) 6221-544834
email ronald.bakker@urz.uni-heidelberg.de
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Hi all /Henrik Svensen

In addition to the answer by John Naden referring to the system N2-H2O the following recent data may be helpful:

Van Hinsberg M. (1994) Phase behaviour of the systems N2-H2O, N2-CH4 and N2-He under extreme conditions. Published Ph.D. Diss. University of Amsterdam (Van der Waals Lab).

It gives the fluid-fluid immiscibility curves for XH2O=0.5, 0.67, and 85 up to about 600oC/ 20kbars as well as extensive data on the stability of N2-clathrate hydrate.

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Fons van den Kerkhof
I.G.D.L.
University of Goettingen
Goldschmidtstr. 3
37 077 Goettingen /Germany
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