Jensen {GCDkit}R Documentation

Jensen cation plot (1976)

Description

Assigns data for Jensen's cation plot into Figaro template (list 'sheet') and appropriate values into 'x.data' and 'y.data'.

Usage

Jensen()

Details

Jensen's cation plot, proposed by Jensen (1976) and modified by Jensen & Pyke (1982). The triangular diagram is defined on the basis of millications as follows:

left apex: Al

upper apex: FeT+Ti

right apex: Mg

Jensen.png

The diagram defines following rock series and names:

Komatiite series (KOMATIITE) Komatiite
Komatiitic basalt
Tholeiite series (TH) Rhyolite
Dacite
Andesite
High-Fe tholeiite basalt
High-Mg tholeiite basalt
Calc-alkaline series (CA) Rhyolite
Dacite
Andesite
Basalt

Value

x.data, y.data

Values for the three apices transformed into 2D space

sheet

list with Figaro Style Sheet data

Author(s)

Vojtěch Erban, erban@sopky.cz
& Vojtěch Janoušek, vojtech.janousek@geology.cz

References

Grunsky EC (1981) An algorithm for the classification of subalkalic volcanic rocks using the Jensen cation plot. In: Wood J, White OL, Barlow RB (eds) Summary of Field Work, 1981. Ontario Geological Survey, Miscellaneous Papers 100, pp 61-65

Jensen LS (1976) A New Cation Plot for Classifying Subalkalic Volcanic Rocks. Ontario Geological Survey Miscellaneous Paper 66, pp 1-22

Jensen LS, Pyke DR (1982) Komatiites in the Ontario portion of the Abitibi belt. In: Arndt NT, Nisbet EG (eds) Komatiites. George Allen & Unwin, London, pp 147-157

See Also

classify figaro plotDiagram

Examples

    data(sazava)
    accessVar("sazava")
    
    # Plot the diagram
    plotDiagram("Jensen", FALSE)

[Package GCDkit version 6.1 Index]