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

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)

Vojtech Erban, vojtech.erban@geology.cz
& Vojtech Janousek, vojtech.janousek@geology.cz

References

Grunsky E C (1981) An algorithm for the classification of subalkalic volcanic rocks using the Jensen cation plot. In: Wood J, White O L, Barlow R B, Colvine A C (eds). Ontario Geological Survey, Misc Pap 100, pp 61-65

Jensen L S (1976) A new cation plot for classifying subalkalic volcanic rocks. Ont Div Mines, Misc Pap 66, 1-21

Jensen L S & Pyke D R (1982) Komatiites in the Ontario portion of the Abitibi belt. In: Arndt N T & Nisbet E G (eds) Komatiites. Allen & Unwin, London

See Also

classify figaro plotDiagram

Examples

#plot the diagram
plotDiagram("Jensen", FALSE)

[Package GCDkit version 3.00 Index]