stratigraph (version 0.66)

rogerslk: Rogers Lake

Description

A pollen core from Rogers Lake, Connecticut in the data structure produced by readGPDascii

Usage

data(rogerslk)

Format

The output format is a data frame with columns:

$counts

count matrix with species in columns, depths in rows

num [1:91, 1:78] 0 0 0 0 0 0 0 0 0 0 ...

..- attr(*, "dimnames")=List of 2

.. ..$ : chr [1:91] "7.5" "17.5" "22.5" "32" ...

.. ..$ : chr [1:78] "Abi " "Ace.ru " "Ace.sa-t" "Ace.ud " ...

$depths

num [1:91] 7.5 17.5 22.5 32 37.5 47.4 58 68.5 79 94.6 ...

$sample.names

chr [1:91] " " " " " " " " ...

$absolute.ages

num [1:91] 0 79 119 200 293 ...

$taxa

chr [1:78] "Abies" "Acer rubrum" "Acer saccharum-type" "Acer undiff." ...

$short.names

chr [1:78] "Abi " "Ace.ru " "Ace.sa-t" "Ace.ud " ...

$tax.cat

Factor w/ 7 levels "A","B","F","M",..: 1 1 1 1 1 1 1 1 1 1 ...

Source

ftp://ftp.ncdc.noaa.gov/pub/data/paleo/pollen/asciifiles/fossil/ascfiles/gpd/rogerslk.txt

References

Davis, M.B. 1967. Pollen accumulation rates at Rogers Lake, Connecticut, during late- and postglacial time. Review of Paleobotany and Palynology 2:219-230.

Davis, M.B., and E.S. Deevey, Jr. 1964. Pollen accumulation rates: estimates from late-glacial sediment of Rogers Lake. Science 145:1293-1295.

Davis, M.B. 1969. Climatic changes in southern Connecticut recorded by pollen deposition at Rogers Lake. Ecology 50:409-422.

Examples

data(rogerslk)
str(rogerslk)