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Titolo:
AN INTERACTIVE SPREADSHEET FOR GRAPHING MINERAL STABILITY DIAGRAMS
Autore:
BIDDLE DL; PERCIVAL HJ; CHITTLEBOROUGH DJ;
Indirizzi:
UNIV ADELAIDE,WAITE AGR RES INST,DEPT SOIL SCI GLEN OSMOND SA 5064 AUSTRALIA MANAAKI WHENAUA LANDCARE RES NEW ZEALAND LTD LOWER HUTT NEW ZEALAND
Titolo Testata:
Computers & geosciences
fascicolo: 1, volume: 21, anno: 1995,
pagine: 175 - 185
SICI:
0098-3004(1995)21:1<175:AISFGM>2.0.ZU;2-9
Fonte:
ISI
Lingua:
ENG
Soggetto:
STANDARD FREE-ENERGIES; SYSTEM;
Keywords:
GEOCHEMISTRY; THERMODYNAMICS; MINERAL STABILITY DIAGRAMS; SPREADSHEET;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
CompuMath Citation Index
Science Citation Index Expanded
Science Citation Index Expanded
Citazioni:
23
Recensione:
Indirizzi per estratti:
Citazione:
D.L. Biddle et al., "AN INTERACTIVE SPREADSHEET FOR GRAPHING MINERAL STABILITY DIAGRAMS", Computers & geosciences, 21(1), 1995, pp. 175-185

Abstract

The assessment of mineral stability during water-rock interactions iscritical for defining element mass balances. One method of assessing the relative stability of minerals in a solution of known elemental concentration and pH is the mineral stability diagram. The positioning of lines representing the stability of minerals on a plot of log(10)(Al3+)+3pH versus log(10)(H4SiO4 degrees) depends on the chemical composition of the minerals as well as their free energy of formation. Lack of correspondence between reported heats of formation from different sources has been the motivation for generating this spreadsheet routine. By using this spreadsheet which instantly plots the position of stability lines on the active spreadsheet screen, the effect of changing values of thermochemical data, pH, and temperature on sample stability can be assessed.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 04/12/20 alle ore 03:38:10