bentonites {ToolsForCoDa}

Isotopic and chemical compositions of bentonites

Description

The data consists of 14 geological samples from the US with their major oxide composition (SiO2, Al2O3, Fe2O3, MnO, MgO, CaO, K2O, Na2O and H2O+) and delta Deuterium and delta-18-Oxysgen (dD,d18O).

Usage

data("bentonites")

Format

A data frame with 14 observations on the following 11 variables.

Si

a numeric vector

Al

a numeric vector

Fe

a numeric vector

Mn

a numeric vector

Mg

a numeric vector

Ca

a numeric vector

K

a numeric vector

Na

a numeric vector

H20

a numeric vector

dD

a numeric vector

d18O

a numeric vector

Source

Cadrin, A.A.J (1995), Tables 1 and 2. Reyment, R. A. and Savazzi, E. (1999), pp. 220-222.

References

Cadrin, A.A.J., Kyser, T.K., Caldwell, W.G.E. and Longstaffe, F.J. (1995) Isotopic and chemical compositions of bentonites as paleoenvironmental indicators of the Cretaceous Western Interior Seaway Palaeogeography, Palaeoclimatology, Palaeoecology 119 pp. 301–320.

Reyment, R. A. and Savazzi, E. (1999) Aspects of Multivariate Statistical Analysis in Geology, Elsevier Science B.V., Amsterdam. https://doi.org/10.1016/B978-044482568-1/50012-4

Examples

data(bentonites)