Radiocarbon Dates and Pollen Data, Peterson Erosional Remnant, Arctic Coastal 
Plain, Alaska

DATA ORGANIZATION
The data consist of four files, each with a different structure:

PERBAS.xls

This file contains raw pollen counts. The first column specifies the sample 
depth (cm). Subsequent columns list raw pollen count for each pollen or 
microfossil type. See "PERDIC.DIC" for pollen/microfossil codes and names. 

PER_Percentage.xls

This file contains percent pollen data listed by depth (cm). The first column 
specifies the sample depth (cm). Subsequent columns list pollen percentages 
for each pollen or microfossil type. See "PERDIC.DIC" for pollen/microfossil 
codes and names. 

PER_C14_Dates.xls

This file contains C-14 radiocarbon dating information.

Column A contains the CAMS (Center for Accelerator Mass Spectrometry, Livermore National Laboratory) lab number. 

Column B contains the sample depth (cm). 

Column C contains the deflated depth (cm).

Column D lists the uncalibrated radiocarbon date (ybp).

Column E lists the date range (ybp).

Column F lists the 2-sigma midpoint (years).

Column G lists the calibrated date 2-sigma range (ybp).

Column H lists the material sampled. 

PERDIC.DIC

This file lists pollen/microfossil codes used, and their Latin names. 

DOCUMENTATION
Please be sure to read the complete documentation in detail before working 
with the data.