# **************************************************************** # ** Please acknowledge the contributors, the International ** # ** Multiproxy Paleofire Database, and and the North American ** # ** Pollen Database when using these data. ** # **************************************************************** # # Site name: Sagehen Marsh # # Place: USA:Colorado # Latitude: 37.28.26N ( 37.473889) # Longitude: 108.30.14W (-108.503889) # Elevation(m): 2085 # Sigle: SAGEHEN3 # Entity name: core III # Contact person: Petersen, K.L. # Entity notes: Core is discontinuous, cores I & II separate entities. # # Radiocarbon dates: # Depth Thk Age SDup SDlo Lab no. Basis Material # 155.0 10 5560 90 90 Beta-3824 L marsh sediments # # Chron name: NAPD 1 # Age model: linear interpolation # Age bounds: 5560 - 5750 # Chron notes: Chron uses one C14 date and one sediment stratigraphy date. # # Age basis: # Depth Thk Age AgeUp AgeLo RCode # 155.0 10 5560 5740 5390 C14 # 228.0 1 5750 5800 5700 POL # # Publications: Petersen, K.L. 1985. Palynology in Montezuma County, # southwestern Colorado: the local history of the Pinyon Pine # (Pinus edulis). AASP Contribution Series No. 16:47-62. # # Petersen, K.L. 1994. A warm and wet Little Climatic Optimum # and a cold and dry Little Ice Age in the southern Rocky # Mountains, U.S.A. Climatic Change 26:243-269. # # Petersen, K.L. 1984. Man and environment in the Dolores # River Valley, SE Colorado: some pollen evidence. American # Quaternary Association, Eighth Meeting, Program and # Abstracts, 13-15 August 1984, University of Colorado, # Boulder, p102. # # Petersen, K.L. 1985. The history of the marsh in Sagehen # Flats: the pollen record. Pages 229-238 in K.L. Petersen, # V.L. Clay, M.H. Matthews, and S.W. Neusius, compilers. # Chapter 22. Dolores Archeological Program: Studies in # Environmental Archaeology, U.S. Department of Interior, # Bureau of Reclamation, Science and Engineering Center, # Denver, Colorado, USA. # # 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 fragments (25-50 µm) 4 Charcoal fragments (50-100 µm) 5 Charcoal fragments (>100 µm) 155.5,5561.3,4558,523,34 164,5583.4,5500,601,70 173,5606.8,1994,209,13 180,5625.1,561,43,10 189,5648.5,689,22,70 197,5669.3,1664,107,12 206,5692.7,6360,243,49 212,5708.4,2502,70,42 220,5729.2,6638,236,30 227.5,5748.7,2900,38,18