SeymourIslandBins: Sampling bins approaching and covering the K/Pg boundary on...

In DAIME: Effects of Changing Deposition Rates

Description

Contains the sampling bins from Seymour Island from

• Macellari (1984), section D

• Witts et al. (2016), section A

Reference for stratigraphic heights is the composite section by Witts et al. (2016) with the K/Pg boundary at 1007.5 m. The bins from Macellari were correlated using the glauconite bed and the last ammonite occurrences at the K/PG boundary (Macellari 1984, p. 506 and 518, samples 401,402, and 403).

Usage

data(SeymourIslandBins)

Format

A list with two entries: One corresponding to the bins from Macellari (1984), the other to the bins from Witts et al. (2016)

Source

Macellari, Carlos E. Late Cretaceous stratigraphy, sedimentology, and macropaleontology of Seymour Island, Antarctic Peninsula. Diss. The Ohio State University, 1984.

Witts, James D., et al. "Macrofossil evidence for a rapid and severe Cretaceous/Paleogene mass extinction in Antarctica." Nature communications 7 (2016): 11738.

Examples

data("SeymourIslandBins")
#Compare bins from Macellari and Witts before the K/Pg extinction
plot(SeymourIslandBins$Macellari.1984.Section.D.,
  rep(0,length(SeymourIslandBins$Macellari.1984.Section.D.)),
  ylim=c(0,1.1),xlab='Stratigraphic Height [m]',xlim=c(930,1007.5))
points(SeymourIslandBins$Witts.et.al.2016.Section.A,
  rep(0.2,length(SeymourIslandBins$Witts.et.al.2016.Section.A)),pch=19)
lines(c(1007.5,1007.5),c(0,2))
legend('topleft',pch=c(1,19,NA),lty=c(NA,NA,1),legend=c('Macellari','Witts','K/Pg boundary'))

DAIME documentation built on March 13, 2020, 2:54 a.m.