| GTS2020 {palaeoverse} | R Documentation |
Geological Timescale 2020
Description
A dataframe of the Geological Timescale 2020. Age data from the International Commission on Stratigraphy. Supplementary information is included in the dataset for plotting functionality (e.g. GTS2020 colour scheme).
Usage
GTS2020
Format
A data frame with 189 rows and 9 variables:
- interval_number
Index number for the temporal order of all intervals present in the dataset.
- interval_name
Names of intervals in the dataset.
- rank
The temporal rank of intervals in the dataset.
- max_ma
The maximum age of the interval in millions of years before present.
- mid_ma
The midpoint age of the interval in millions of years before present.
- min_ma
The minimum age of the interval in millions of years before present.
- duration_myr
The duration of the interval in millions of years.
- font
Colour of font to use for plotting in conjunction with the colour column.
- colour
Colours of stages based on the ICS timescale.
- abbr
Standard abbreviations of interval names where appropiate.
References
Gradstein, F.M., Ogg, J.G., Schmitz, M.D. and Ogg, G.M. eds. (2020).
Geologic Timescale 2020. Elsevier.
Source
Compiled by Lewis A. Jones (2022-07-02) from the ICS.