geostellar: Table of geological ages and time before earth formation...

Description Usage Format Details Source

Description

Table of geological ages and time before earth formation Goldblatt et al. 2010 doi:10.5194/se-1-1-2010

Usage

1

Format

A data frame

Details

Generated with: geostellar <- read.csv(file = "~/Desktop/datelife/inst/extdata/geo_stellar_chrono_scale_2018.9.20.csv", save(geostellar, file = "~/Desktop/datelife/data/geostellar.RData") had <- strat2012[rep(116, each=6),] rownames(had) <- 116:121 had$era <- c("Neohadean", "Mesohadean", "Palaeohadean") had$period <- c("Prometean", "Acastan", "Procrustean", "Canadian", "Jacobian", "Hephestean") had$MA <- c(3900, 4000, 4100, 4200, 4300, 4400) chao <- strat2012[rep(116, each=4),] rownames(chao) <- 122:125 chao$eon <- rep("Chaotian", 4) chao$era <- c(rep("Neochaotian", 2), rep("Eochaotian", 2)) chao$period <- c("Titanomachean", "Hyperitian", "Erebrean", "Nephelean") chao$MA <- c(4500, 4560, 4567, 4730)

Source

https://sites.google.com/site/geologicdatascale/timescale


phylotastic/datelife documentation built on Jan. 22, 2019, 12:29 a.m.