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 What is a Record? The information presented in an index or database that is needed to locate a book, journal article or other publication in a library or on the Web.

Sample GeoRef Record

Database   GeoRef  
Title   Late Wisconsin periglacial environments of the southern margin of the Laurentide ice sheet reconstructed from pollen analyses  
Author   Heusser, Linda; Maenza-Gmelch, Terryanne; Lowell, Thomas; Hinnefeld, Rebecca  
Affiliation   Lamont-Doherty Geological Observatory, Palisades, NY, United States (USA)  
Affiliation   New York University, United States (USA); University of Cincinnati, United States (USA)  
Source   JQS. Journal of Quaternary Science, vol.17, no.8, pp.773-780, Dec 2002  
ISSN   0267-8179  
 
Descriptors  

 absolute age  Angiospermae  C-14  carbon  Cenozoic  Coniferales  dates  Dicotyledoneae  Gymnospermae  Holocene  Indiana  isotopes  Laurentide ice sheet  lower Holocene  microfossils  miospores  Ohio  paleobotany  paleoclimatology  palynomorphs  periglacial environment  Picea  Pinaceae  Pinus  Plantae  Pleistocene  pollen  pollen analysis  Quaternary  Quercus  radioactive isotopes  sediments  Selaginella selaginoides  southeastern Indiana  southwestern Ohio  Spermatophyta  United States  upper Pleistocene  Wisconsinan  Selaginella

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Abstract   Full-glacial pollen assemblages from four radiocarbon-dated interstadial deposits in southwestern Ohio and southeastern Indiana imply the presence of herbaceous vegetation (tundra or muskeg with subarctic indicator Selaginella selaginoides) on the southern margin of the Miami lobe of the Laurentide Ice Sheet ca. 20000 (super 14) C yr BP. Scattered Picea (spruce) and possibly Pinus (pine) may have developed regionally ca. 19000 (super 14) C yr BP, and ca. 18000 (super 14) C yr BP, respectively. Spruce stumps in growth position support a local source of pollen. Prior to the ca. 14000 (super 14) C yr BP glacial advance, small amounts of Quercus (oak) and other deciduous pollen suggest development of regional boreal (conifer-hardwood) forests. Abstract Copyright (2002), Wiley Periodicals, Inc.  
Language   English  
Features   References: 45; illus. incl. sects., sketch map  
Publication Year   2002  
Publication Type   Serial; Analytic  
Country of Publication   United Kingdom (GBR)  
Latitude & Longitude   Latitude:N390000,N393000 Longitude:W0840000,W0853000  
Classification   24, Quaternary geology  
Copyright   GeoRef, Copyright 2004, American Geological Institute. Reference includes data from John Wiley & Sons, Chichester, United Kingdom  
Update   200306  
DOI   10.1002/jqs.688  
Accession Number   2003-018776

What is a Field? A specific type of information shown in a database record. The record above contains the Title, Author, Source and Descriptor fields, among others.

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