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TitleMaximizing the value of historical bedrock field observations: an example from northwest Canada
AuthorFallas, K M; MacNaughton, R B; Sommers, M J
SourceGeoResJ vol. 6, 2015 p. 30-43,
Alt SeriesEarth Sciences Sector, Contribution Series 20140261
Mediaon-line; digital; paper
File formatpdf
ProvinceNorthwest Territories; Nunavut
NTS86C/03; 86C/04; 86C/05; 86C/06; 86C/11; 86C/12; 86C/13; 86C/14; 86D; 86E; 86F/03; 86F/04; 86F/05; 86F/06; 86F/11; 86F/12; 86F/13; 86F/14; 86K/03; 86K/04; 86K/05; 86K/06; 86L; 86M; 96; 97A; 97B; 97C; 97D/01; 97D/02; 97D/03; 97D/04; 97D/05; 97D/06; 97D/07; 97D/08; 97D/09; 97D/10; 97D/11; 97F/01; 97F/04; 97F/05; 106A/01; 106A/02; 106A/06; 106A/07; 106A/08; 106A/09; 106A/10; 106A/11; 106A/12; 106A/13; 106A/14; 106A/15; 106A/16; 106B/13; 106B/14; 106B/15; 106B/16; 106G; 106H; 106I; 106J; 106O; 106P; 107A; 107D; 107E/01; 107E/02; 107E/03; 107E/04; 107E/08
AreaGreat Bear Lake
Lat/Long WENS-132.0000 -117.0000 70.7500 64.0000
Subjectsgeneral geology; computer mapping; mapping techniques; bedrock geology; geographic information system
Illustrationslocation maps; photographs; tables; sketch maps
ProgramMackenzie Corridor, Shield to Selwyn, GEM2: Geo-mapping for Energy and Minerals
AbstractHistorical bedrock field observations have potential for significant value to the scientific community and the public if they can be rescued from physical records stored in archives of scientific research institutions. A set of historical records from ‘Operation Norman’, a bedrock mapping activity conducted in northwestern Canada by the Geological Survey of Canada (GSC) from 1968 to 1970, was identified as suitable for data rescue and incorporation into a GIS geodatabase. These observational data, including field stations, lithology descriptions, structural measurements, measured section locations, and fossil localities, were digitized as geospatial features with attributes assigned according to the observation records. Over 90% of the original observations were successfully rescued in this manner, allowing for effective incorporation with newer observations. Lack of reliable location information for field observations was the primary impediment to effective data rescue. Access to original participants in Operation Norman was particularly helpful in ensuring successful data rescue, as was the excellent state in which research materials had been curated. The resulting dataset of combined historical and recent observations provides improved distribution of observations to constrain geological analysis and map interpretation. Rescued data from Operation Norman have been incorporated in new bedrock map compilations and other scientific publications.
Summary(Plain Language Summary, not published)
This paper is an account of a "data rescue" activity. Data rescue is the process of: preserving data at risk of being lost due to deterioration of their storage medium; and of digitizing archival data into secure, computer-compatible formats for easy access. The data rescue described in the paper was part project EGM003 during GEM. It involved the digitization of well-curated, hard-copy field mapping records from GSC's Operation Norman (1968-1970). These data were a valuable resource to the scientists of EGM003 to help increase data density without the need to revisit sites, but also to identify sites that needed more detailed study to resolve anomalous data. Essential all data for which reliable location information had been preserved could be rescued, but data which lacked location information could not be. As a result of the data rescue, archival Open Norman data are now publicly available as part of the map outputs from EGM003, which can downloaded for free from GEOSCAN or Geogratis.