# **************************************************************** # ** Please acknowledge the contributors, the International ** # ** Multiproxy Paleofire Database, and and the North American ** # ** Pollen Database when using these data. ** # **************************************************************** # # Site name: Lake EC1 # Place: CAN:Québec # Latitude: 56.17.00N # Longitude: 75.06.00W # Elevation(m): 250 # Sigle: LAKEEC1 # Entity name: # Contact person: Gajewski, K.J. # # Radiocarbon dates: # Depth Thk Age SDup SDlo Lab no. Basis Material # 17.5 5 2560 200 200 Beta-31049 L bulk sediment # 27.5 9 2760 110 110 Beta-34465 L bulk sediment # 52.5 5 3780 220 220 Beta-31050 L bulk sediment # 100.0 10 5790 130 130 GSC-4655 G bulk sediment # # Chron name: Gajweski 2 # Age model: 3rd degree polynomial (least squares) # Age bounds: 0 - 6720 # Chron notes: Fit a 3rd degree polynomial (least squares) with origin held # constant to 4 radiocarbon dates plus sediment surface (0 # BP). Coefs: 0.0, 178.294, -2.97766, 0.0177418. # # Age basis: # Depth Thk Age AgeUp AgeLo RCode # 0.0 0 0 50 -37 TOP # 17.5 5 2560 2960 2160 C14 # 27.5 9 2760 2980 2540 C14 # 52.5 5 3780 4220 3340 C14 # 100.0 10 5790 6050 5530 C14 # # Publications: Gajewski, K., S. Payette, and J.C. Ritchie. 1993. Holocene # vegetation history at the boreal-forest -- shrub-tundra # transition in north-western Québec. Journal of Ecology 81: # 433-443. # # Pollen counts and additional chronologies from this site are # available via the North American Pollen Database at: # http://www.ngdc.noaa.gov/paleo/napd.html # 1 Depth (cm) 2 Age (YrBP) 3 CCum2/ml - Charcoal (concentration, µm²/ml) 0,0,6442365.5 1,175,10656463 2,345,13135491 3,509,25392918 4,667,14083945 5,819,35531824 6,966,24716166 7,1108,40239112 8,1245,35866808 9,1376,26264528 10,1503,26085452 12,1741,104186560 14,1961,38842184 15,2064,24225048 18,2348,20015684 20,2517,53391276 25,2874,51952668 30,3148,65125624 33,3279,50250612 40,3503,40474352 45,3610,46987872 50,3688,71083352 55,3751,14204426 60,3810,34626500 65,3881,33635504 70,3975,47389776 75,4108,51832648 80,4290,35284740 85,4537,16988788 90,4861,32289010 95,5276,9030753 100,5795,3823698.5 103,6161,2905239.5 107,6721,32688.5371