# NAPMD ASCII Format
# 07 Aug 01
#
# ****************************************************************
# ** Please acknowledge the contributors and the North American **
# ** Plant Macrofossil Database when using these data.          **
# ****************************************************************
#
# Site name:      Andree Bog
# Place:          USA:Minnesota
# Latitude:       45.43.30N      (  45.725   )
# Longitude:      93.15.00W      ( -93.25    )
# Elevation(m):   300
# Sigle:          ANDREE
# Entity name:
# Contact person: Cushing, E.J.
# Entity notes:   Radiocarbon dates are from an adjacent 10-cm core correlated
#                 by sediment stratigraphy. Depths are from the bog surface.
#
# Radiocarbon dates:
#   Depth   Thk     Age   SDup   SDlo  Lab no.    Basis  Material
#   573.0     4   11300    200    200  L-727A+B     G    Scenedesmus gyttja
#   608.5     1   10900    200    200  L-727C       G    woody litter
#   609.5     1   11500    200    200  L-727D       G    woody litter
# Dating notes:   Cushing (1967) rejects L-727C (10900±200) on woody litter as
#                 too young. It differs significantly from the adjacent date
#                 L-727D (11500±200), but actual age of the wood may account
#                 for this difference. On the other hand, date L-727A+B
#                 (11300±200) on gyttja is almost certainly too old because of
#                 old carbon. The extent of this problem with late-glacial
#                 bulk-sediment dates in Minnesota was not recognized at the
#                 time of Cushing's papers.
#
# Chron name:     NAPD 1
# Age model:      linear interpolation (+ extrapolation)
# Age bounds:     11150 - 11160
# Chron notes:    Chron uses 2 dates: (1) an average date of 10,900±200 and
#                 11,500±200 (11,200). (2) Pollen-stratigraphic date of 10,000
#                 BP for Picea decline. Date L-272A+B (11,300±200) on bulk
#                 sediment (gyttja) is rejected as too old.
#
# Age basis:
#   Depth   Thk     Age  AgeUp  AgeLo  RCode
#   510.0    10   10000  10300   9700   POL
#   609.0     2   11200  11483  10917   CAV
#
# Publications:   Cushing, E.J. 1963. Late-Wisconsin pollen stratigraphy in
#                 east-central Minnesota. Dissertation, University of
#                 Minnesota, Minneapolis, Minnesota, USA.
#
#                 Cushing, E.J. 1964. Redeposited pollen in late-Wisconsin
#                 pollen spectra from east-central Minnesota. American Journal
#                 of Science 262:1075-1088.
#
#                 Cushing, E.J. 1967. Late-Wisconsin pollen stratigraphy and
#                 the glacial sequence in Minnesota. Pages 59-88 in E.J.
#                 Cushing and H.E. Wright, Jr., editors. Quaternary
#                 Paleoecology. Yale University Press, New Haven, Connecticut
#                 USA.
#
11 1
    1 larixnea A Larix needle presence
    2 piceacsa A Picea cone scale presence
    3 piceamia A Picea microsporangium presence
    4 piceampa A Picea microsporophyll presence
    5 piceanea A Picea needle presence
    6 piceasea A Picea seed presence
    7 piceatwa A Picea twig presence
    8 rubussea A Rubus seed presence
    9 potensea B Potentilla seed presence
   10 bryopfga M Bryophyta fragment presence
   11 carexsea Q Carex seed presence
605, , 11151
    -1.0    -1.0    -1.0    -1.0    -1.0    -1.0    -1.0    -1.0    -1.0    -1.0
    -1.0