# NAPMD ASCII Format # 07 Aug 01 # # **************************************************************** # ** Please acknowledge the contributors and the North American ** # ** Plant Macrofossil Database when using these data. ** # **************************************************************** # # Site name: Nichols Silt # Place: USA:Iowa # Latitude: 41.27.00N ( 41.45 ) # Longitude: 91.18.30W ( -91.308333) # Elevation(m): 180 # Sigle: NICHOSI # Entity name: # Contact person: Baker, R.G. # # Radiocarbon dates: # Depth Thk Age SDup SDlo Lab no. Basis Material # 350.0 20 11800 200 200 U conifer wood # # Chron name: NAPMD #1 # Age model: snapshot # Age bounds: 11790 - 11810 # Chron notes: The date of 11,800 y.b.p. was only assigned to the sample # below 340cm because the C14 date was not representative of # the age of the shallower samples. # # Age basis: # Depth Thk Age AgeUp AgeLo RCode # 350.0 20 11800 12200 11400 C14 # # Publications: Baker, R.G., K.L. Van Zant, and J.J. Dulian. 1980. Three # late-glacial pollen and plant macrofossil assemblages from # Iowa. Palynology 4:197-203. # 39 6 1 abibanen A Abies balsamea needle counts 2 acenesfn A Acer negundo seed fragment counts 3 becaaunn A Betula cf. alleghaniensis var. alleghaniensis unspecified c 4 larlanen A Larix laricina needle counts 5 piceanen A Picea needle counts 6 piceasen A Picea seed counts 7 piceatwn A Picea twig counts 8 populccn A Populus catkin scale counts 9 rubusunn A Rubus unspecified counts 10 samcaunn A Sambucus canadensis unspecified counts 11 cheatunn B Chenopodium album-type unspecified counts 12 glyceunn B Glyceria unspecified counts 13 impatunn B Impatiens unspecified counts 14 menarunn B Mentha arvensis unspecified counts 15 oxaliunn B Oxalis unspecified counts 16 potnounn B Potentilla norvegica unspecified counts 17 rucafunn B Rumex cf. aquaticus var. fenestratus unspecified counts 18 rucsmunn B Rumex cf. salicifolius var. mexicanus unspecified counts 19 rumexunn B Rumex unspecified counts 20 urtdiunn B Urtica dioica unspecified counts 21 violaunn B Viola unspecified counts 22 selseunn F Selaginella selaginoides unspecified counts 23 chaaeunn L Characeae unspecified counts 24 aliaeunn Q Alismataceae unspecified counts 25 cacrounn Q Carex cf. rostrata unspecified counts 26 carexunn Q Carex unspecified counts 27 cicmaunn Q Cicuta maculata unspecified counts 28 cycesunn Q Cyperus cf. esculentus unspecified counts 29 cyperunn Q Cyperus unspecified counts 30 elepaunn Q Eleocharis palustris unspecified counts 31 juncuunn Q Juncus unspecified counts 32 lecviunn Q Leersia cf. virginica unspecified counts 33 lycamunn Q Lycopus americanus unspecified counts 34 pollaunn Q Polygonum lapathifolium unspecified counts 35 potgrunn Q Potamogeton gramineus unspecified counts 36 rocisunn Q Rorippa cf. islandica unspecified counts 37 saglaunn Q Sagittaria latifolia unspecified counts 38 stapaunn Q Stachys palustris unspecified counts 39 typhaunn Q Typha unspecified counts 247.5 0.0 0.0 0.0 4.0 13.0 3.0 0.0 1.0 2.0 2.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 1.0 0.0 5.0 0.0 0.0 0.0 2.0 0.0 0.0 0.0 2.0 0.0 0.0 0.0 2.0 0.0 262.5 1.0 0.0 2.0 77.0 76.0 3.0 4.0 0.0 2.0 0.0 0.0 0.0 0.0 0.0 0.0 2.0 0.0 0.0 0.0 0.0 2.0 3.0 0.0 0.0 0.0 6.0 0.0 0.0 0.0 3.0 0.0 0.0 2.0 16.0 2.0 0.0 0.0 0.0 0.0 277.5 0.0 0.0 0.0 26.0 180.0 0.0 0.0 0.0 3.0 0.0 0.0 0.0 0.0 3.0 2.0 0.0 0.0 0.0 2.0 0.0 0.0 0.0 2.0 3.0 3.0 6.0 2.0 2.0 0.0 2.0 0.0 0.0 3.0 31.0 3.0 0.0 4.0 0.0 2.0 292.5 0.0 0.0 0.0 0.0 147.0 0.0 11.0 0.0 2.0 2.0 3.0 0.0 0.0 3.0 0.0 0.0 3.0 2.0 2.0 2.0 2.0 2.0 0.0 2.0 0.0 10.0 2.0 0.0 3.0 9.0 2.0 3.0 2.0 9.0 0.0 0.0 0.0 0.0 0.0 305 0.0 1.0 0.0 6.0 44.0 2.0 6.0 0.0 3.0 0.0 2.0 3.0 2.0 3.0 0.0 0.0 0.0 0.0 2.0 0.0 2.0 3.0 0.0 0.0 0.0 9.0 0.0 0.0 0.0 4.0 0.0 0.0 2.0 3.0 0.0 0.0 0.0 0.0 0.0 347.5, , 11800 0.0 0.0 0.0 2.0 7.0 0.0 0.0 0.0 0.0 0.0 3.0 0.0 0.0 2.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 3.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 2.0 0.0 0.0 0.0 0.0 2.0 0.0 0.0 0.0