Jim Palandri
Research Associate

Department of Earth Sciences
1272 University of Oregon
Eugene, Oregon 97403-1272

Jim might be found in:
- Ilya Bindeman's stable isotope lab
- Elsewhere in Cascade or Columbia fixing something
- TSA's various shops - the folks who can build almost anything


An ongoing project since 2022 is restoration of Gastherm.dat, the thermodynamic database for GASWORK, SOLVGAS, and VOLCAL. These volcanic gas modeling programs are analogous to Chim-XPT, Solveq-XPT, and Geocal-XPT except that the mobile phase carrying all of the chemical components is gaseous rather than aqueous. Related items


Handy links to mostly local reference info and where off-site* may be broken

Items related to local applications Chim-XPT, Solveq-XPT, and Geocal-XPT —
 - Soltherm2023 | Solprint — Latest version derived from mineral & gas data in tc-ds636, still citing Holland and Powell (H&P) 2011
 - Soltherm2011 | Solprint — Previous version derived from tc-ds62 citing H&P 2011. Here adding tourmaline and basis set component #66† univalent lithium. Sweet, sweet, lithium
 - Solveq & Chim-xpt demo input files for both of the above, with very slightly different output
 - Gas stoichiometry data for Geocal-XPT — Gas.sto | Reactant stoichiometry data for Chim-XPT — Minox.dat
 - SolthermBRGM.XPT | SolprintBRGM.txt — *BRGM *Thermoddem data, reformatted from the ToughReact *version. For the Martians, and other low temperature peoples
 - XPT-LogK — a utility for extracting and interpolating Soltherm log K's
 - Manuals — Solveq-XPT and Chim-XPT
 - Fugacity coefficients in mixtures of H2O, CO2, and NaCl at high P and T: program FUGCO, with a worked example as in the cited reference, and included as subroutines in Chim-XPT
 - Delicious water, what are thine properties? So too ethereal vapor phase thereof - Steam Tables - pdf, csv

Supcrt-related items for computing log K's in Soltherm —
 - Supcrt92.zip — the original distribution from Johnson et al. 1992 using Maier-Kelly heat capacity, Cp = a + b T + c T-2
 - Supcrt96 | Source | Win32 | x64 — derived from Supcrt92 to use Maier-Kelly heat capacity, and adding Powell and Holland 1985, Cp = a + b T + c T-2 + d T-0.5
 - Cprons96 | Source | x64 — derived from Cprons92. Converts any (including any of those for Supcrt92) properly formatted sequential access database to direct access, suitable for use with Supcrt96

Some items related to the data used by Supcrt —
 - *HPx-eos & Thermocalc — for phase equilibria computations — application and data from Tim *Holland. The primary application for which the H&P 2011 compiled their data
 - The most current Supcrt92 data might be found at the *Gitlab ENKI portal, in Everett Shock's *Geopig workgroup space, file *Slop16.dat. This group has done phenomenal work in adding data for organic compounds.

Some info about files SPRONS and DPRONS — Sequential-, and Direct-access PROperties of Natural Substances, as per Johnson et al 1992. The sequential access file is for data editing, which is processed by Cprons into the direct access version for increased Supcrt execution speed
 - SPRONS92.DAT — The original masterpiece
 - Sprons96_HP2023.dat — Uses the most current aqueous species data from *Slop16.dat, internally consistent mineral and gas data from the H&P *Thermocalc web site (file tc-ds636.txt, 2023), and additional data that complement them
 - Dprons96_HP2023.dat — The above file piped through Cprons96 and ready to use with Supcrt96
 - Sprons96_HP2011.dat — The previous version using data from *Slop07.dat, and earlier H&P data (file tc-ds62.txt, 2011)
 - Some background info on the H&P data

 - Sprons96-xpart-HP2023.dat — The most recent and still citing H&P 2011
 - Sprons96-xpart-HP2011.dat — Previous version
 - Sprons96-xpart-gases.dat — The gases section, expanded to 758 items for the GASTHERM project
 - Sprons96-xpart-misc.dat — Bonus mineral and gas phase data from other sources, also properly formatted for Supcrt96. Many of these are from Slop16.dat
 - Sprons92-xpart-aqs.dat — Bonus aqueous phase species data too, properly formatted for any version of Supcrt. In particular, H4SiO4,aq. from Stefαnsson 2001; rarely does so very much hinge upon so very little


Miscellaneous links:

Experimental petrology —
 - CSPV North — LabVIEW v.2012sp1/WinXP
 - CSPV South — LabVIEW v.2018/Win10-64
 - Related items


Isotope ratio mass spectrometry —
 - Info on laser fluorination and extraction of oxygen from earth materials, for d18O and d17O isotopic analysis
 - Reference and other info. Lots of photos, mostly to help in putting Humpty together again in semblance of working order

Fluid inclusions —
 - Some photos of the setup, before it was boxed up

Just for fun —
 - Geologic map [A, B, L; USGS 7.5' - Clarno, Muddy Ranch] of Muddy Ranch and vicinity, north of Currant and Muddy Creeks, Wasco, Wheeler, and Jefferson Counties, Oregon (1993). Aka Washington Family Ranch, and before that Rajneeshpuram
 - Streetcar map of Eugene, OR, 1907-1928 — Exposed track is still be seen on Moss, Columbia, and University Streets. Modified from a map published in Eugene Weekly in 2008
 - Some photographs of the I-5 Whilamut Passage Bridge replacement and related construction, near milepost OR 192
 - Related items
 

H2O Enthalpy as f(P,T)

 
† Bringing us to 55 of 82‡ stable elements in the Soltherm basis set. The other items being metastable acetate, oxalate, succinate, malonate, aqueous CH4, H2, N2, and NH3, radioactive UO2+ and Pm+3, and alternate redox component O2 - redox state is defined by either paired sulfate-sulfide or H2O-O2. A legacy from the era of 16-bit operating systems, when use of sulfide for an oxidizing system, or O2 for a reducing system, might cause an array underflow — or that was claimed to be the case but will never be verified. Since water must be present and sulfate is so common, basis components sulfide and O2 were hard coded to be mutually exclusive. Pick one.
‡ Bismuth-209 undergoes α-decay to 205Tl with a half-life of 2.01x1019 years, or, ~1.46x1009 times the 1.38*1010 or so year age of our observable universe. To not be a pedant but only in this one case, bismuth is deemed stable. So 82 rather than 81.



Drumknott!
- Vetinari