DebonQBR Documentation

Q vs. B diagram (Debon + Le Fort 1983)

Description

Assigns data for Debon & Le Fort's Q vs. B diagram into Figaro template (list 'sheet') and appropriate values into 'x.data' and 'y.data'.

Usage

DebonQB()

Details

The Q vs. B diagram was proposed by Debon and Le Fort (1983) for aluminous associations. It defines three associations, reflecting maficity of samples: leucocratic, subleucocratic and mesocratic.

Parameters for the diagram are calculated by the function 'DebonCalc'. All of them are based on millications (1000 gram-atoms per 100 grams).

Q = Si / 3 - (K + Na + 2 * Ca / 3) [cationic proportion of quartz]

B = Fe + Mg + Ti [maficity]

DebonQB.png

For details, see Debon & Le Fort (1983) and (1988).

Value

sheet

list with Figaro Style Sheet data

x.data

Q value. See details.

y.data

B value. See details.

Author(s)

Vojtech Janousek, vojtech.janousek@geology.cz

References

Debon F & Le Fort P (1983) A chemical-mineralogical classification of common plutonic rocks and associations. Trans Roy Soc Edinb; Earth Sci 73: 135-149

Debon F & Le Fort P (1988) A cationic classification of common plutonic rocks and their magmatic associations: principles, method, applications. Bull. Mineral 111: 493-511

See Also

classify figaro plotDiagram DebonPQ DebonBA DebonKNaB DebonBMgNo DebonBQF DebonCalc

Examples

    data(blatna)
    accessVar("blatna")
    selectSubset("SiO2>50")
    plotDiagram("DebonQB",FALSE)
    figCol("red")