# NAPMD ASCII Format
# 07 Aug 01
#
# ****************************************************************
# ** Please acknowledge the contributors and the North American **
# ** Plant Macrofossil Database when using these data.          **
# ****************************************************************
#
# Site name:      Gribben Forest
# Place:          USA:Michigan
# Latitude:       46.25.30N      (  46.425   )
# Longitude:      87.31.30W      ( -87.525   )
# Elevation(m):   364
# Sigle:          GRIBBEN
# Entity name:
# Contact person: Pregitzer, K.S.
#
# Radiocarbon dates:
#   Depth   Thk     Age   SDup   SDlo  Lab no.    Basis  Material
#     0.0     0    9660     60     60  Beta-78156        Picea wood
#     0.0     0    9830     70     70  Beta-91833        Picea wood
#     0.0     0    9930     70     70  Beta-91834        Picea wood
#     0.0     0   10290     90     90  Beta-91832        Picea wood
# Dating notes:   Wood (for all dates) was from the outer 20 rings of four
#                 different tree cross-sections
#                 Wood (for all dates) was from the outer 20 rings of four
#                 different tree cross-sections
#                 Wood (for all dates) was from the outer 20 rings of four
#                 different tree cross-sections
#                 Wood (for all dates) was from the outer 20 rings of four
#                 different tree cross-sections
#
# Chron name:     NAPMD1
# Age model:      snapshot
# Age bounds:     9860 - 9870
# Chron notes:    Used Calib 4.2 to calculate average date. Author reported
#                 9928 +/- 133 as the average.
#
# Age basis:
#   Depth   Thk     Age  AgeUp  AgeLo  RCode
#     0.0     0    9867   9937   9797   CAV
#
# Publications:   Pregitzer, K.S., D.D. Reed, T.J. Bornhorst, D.R. Foster,
#                 G.D. Mroz, J.S. McLachlan, P.E. Laks, D.D. Stokke, P.E.
#                 Martin, and S.E. Brown. 2000. A buried spruce forest
#                 provides evidence at the stand and landscape scale for the
#                 effects of environment on vegetation at the
#                 Pleistocene/Holocene boundary. Journal of Ecology 88:45-53.
#
#                 Futyma, R.P. 1981. The northern limits of glacial Lake
#                 Algonquin in Upper Michigan. Quaternary Research 15:291-310.
#
#                 Meyers, P.A., M.J. Leenheer, K.M. Erstfield, and R.A.
#                 Bourbonniere. 1980. Changes in spruce composition following
#                 burial in lake sediments for 10,000 years. Nature
#                 287:534:536.
#
6 1
    1 picglcoa A Picea glauca cone presence
    2 picglnea A Picea glauca needle presence
    3 picgltwa A Picea glauca twig presence
    4 piceawoa A Picea wood presence
    5 bryumgta M Bryum gametophyte presence
    6 dreungta M Drepanocladus uncinatus gametophyte presence
0, , 9867
    -1.0    -1.0    -1.0    -1.0    -1.0    -1.0