# ****************************************************************
# ** Please acknowledge the contributors, the International     **
# ** Multiproxy Paleofire Database, and and the North American  **
# ** Pollen Database when using these data.                     **
# ****************************************************************
#
# Site name:      Montezuma Well
# Place:          USA:Arizona
# Latitude:       34.00.00N      (  34.0     )
# Longitude:      112.00.00W     (-112.0     )
# Elevation(m):   1125
# Sigle:          MONTEZUM
# Entity name:
# Contact person: Davis, O.K.
#
# Radiocarbon dates:
#   Depth   Thk     Age   SDup   SDlo  Lab no.    Basis  Material
#   225.0    10    1526     50     50  AA-2450      A    charcoal, wood
#   330.0    10    2885     60     60  AA-2451      A    charcoal, wood
#   395.0    10    5540     60     60  AA-4693      A    charcoal, wood
#   465.0    10    8003     70     70  AA-2452      A    Scirpus achenes
#   535.0    10   14950    350    320  A-4732       G    bark
#   887.0     1    9520    200    200  A-4733       G    wood
#   887.0     1   24910    370    370  AA-5053      A    wood
#  1015.0     1   10975     95     95  AA-4694      A    Juniperus twig
# Dating notes:   Davis and Shafer (1992) reject dates A-4732 and AA-5053 as
#                 too old.
#
# Chron name:     Davis & Shafer 1992
# Age model:      linear interpolation
# Age bounds:     0 - 10980
# Chron notes:    Chron uses 6 radiocarbon dates plus surface (0 BP). Dates
#                 A-4732 and AA-5053 rejected as too old.
#
# Age basis:
#   Depth   Thk     Age  AgeUp  AgeLo  RCode
#     0.0     0       0      0      0   TOP
#   225.0    10    1525   1625   1425   C14
#   330.0    10    2885   3005   2765   C14
#   395.0    10    5540   5660   5420   C14
#   465.0    10    8000   8140   7860   C14
#   887.0     1    9520   9920   9120   C14
#  1015.0     1   10975  11165  10785   C14
#
# Publications:   Shafer, D.S. 1989. The timing of late Quaternary monsoon
#                 precipitation maxima in the southwest United States.
#                 Dissertation. University of Arizona, Tuscon, Arizona, USA.
#
#                 Davis, O.K., and D.S. Shafer. 1992. A Holocene climatic
#                 record for the Sonoran Desert from pollen analysis of
#                 Montezuma Well, Arizona, USA. Palaeogeography,
#                 Palaeoclimatology, Palaeoecology 92:107-119.
#
# Pollen counts from this site are available via the North American Pollen
# Database at: http://www.ncdc.noaa.gov/paleo/napd.html
#
        1       Depth (cm)
        2       Age (YrBP)
        3       Charcoal Fragment Count
0,0,29
5,34,44
10,68,45
22,149,168
42,285,283
61,413,5
80,542,172
100,678,1
118,800,25
138,935,128
158,1071,6
185,1254,16
215,1457,1356
230,1590,6992
240,1719,1400
250,1849,7207
257,1939,3640
285,2302,6723
300,2496,1240
315,2691,1134
330,2885,276
337,3171,182
343,3416,1353
350,3702,76
355,3906,6249
360,4110,14274
365,4315,2131
370,4519,176
377,4805,200
385,5132,369
390,5336,277
395,5540,191
400,5716,26
404,5856,545
410,6067,794
415,6243,96
422,6489,10822
430,6770,897
435,6946,10060
440,7121,20923
445,7297,32766
450,7473,8461
457,7719,8289
466,8004,297
475,8036,624
485,8072,11508
515,8180,813
550,8306,3034
585,8432,14223
615,8540,2254
650,8666,790
685,8792,9497
715,8900,6256
750,9027,57
785,9153,199
815,9261,1
850,9387,122
885,9513,31
900,9668,83
915,9838,68
930,10009,34
950,10236,18
975,10520,17
985,10634,57
990,10691,26
995,10748,36
1000,10804,81
1005,10861,99
1015,10975,144