LR04_MISboundaries {gsloid}

Marine isotope stages (MIS) boundaries.

Description

From http://www.lorraine-lisiecki.com/LR04_MISboundaries.txt

Usage

LR04_MISboundaries

Format

A data frame with 232 rows and 7 variables:

MIS_Boundary

Marine isotope stage boundary, start/end

start_MIS

start of this phase

end_MIS

end of this phase

label_MIS

short version of 'start_MIS' suitable for annotating plots

LR04_Age_ka_start

Age of start of MIS, x 1000 years ago

LR04_Age_ka_end

Age of end of MIS, x 1000 years ago

LR04_Age_ka_mid

Age of middle of MIS, x 1000 years ago, suitable for controlling label placement on plots

Source

http://www.lorraine-lisiecki.com/LR04_MISboundaries.txt

Examples

names(LR04_MISboundaries)
head(LR04_MISboundaries)
# subset the MIS data for the last 250 ka years
mis_last_250ka <- LR04_MISboundaries[LR04_MISboundaries$LR04_Age_ka_start <= 250, ]