| Title | Seismic shothole drillers' lithostratigraphic logs: unearthing a wealth of regional geoscience information in northwestern Canada |
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| Author | Smith, I R |
| Source | Geophysical Research Letters vol. 6, 2015 p. 21-29, https://doi.org/10.1016/j.grj.2015.01.005  Open Access |
| Image |  |
| Year | 2015 |
| Alt Series | Earth Sciences Sector, Contribution Series 20140297 |
| Publisher | Elsevier BV |
| Document | serial |
| Lang. | English |
| Media | paper; on-line; digital |
| File format | pdf |
| Province | Northwest Territories; Nunavut; Yukon |
| NTS | 85; 86; 87A; 87B; 87C; 87D; 87E/01; 87E/02; 87E/03; 87E/04; 87F/01; 87F/02; 95; 96; 97A; 97B; 97C; 97D; 97F/04; 97F/05; 105A; 105B/01; 105B/02; 105B/07; 105B/08; 105B/09; 105B/10; 105B/15; 105B/16; 105G/01;
105G/02; 105G/07; 105G/08; 105G/09; 105G/10; 105G/15; 105G/16; 105H; 105I; 105J/01; 105J/02; 105J/07; 105J/08; 105J/09; 105J/10; 105J/15; 105J/16; 105O/01; 105O/02; 105O/07; 105O/08; 105O/09; 105O/10; 105O/15; 105O/16; 105P; 106; 107A; 107B; 107C;
107D; 107E/01; 107E/02; 107E/03; 107E/08; 116A; 116B; 116C/01; 116C/02; 116C/07; 116C/08; 116C/09; 116C/10; 116C/15; 116C/16; 116F/01; 116F/02; 116F/07; 116F/08; 116F/09; 116F/10; 116F/15; 116F/16; 116G; 116H; 116I; 116J; 116K/01; 116K/02; 116K/07;
116K/08; 116K/09; 116K/10; 116K/15; 116K/16; 116N/01; 116N/02; 116N/07; 116N/08; 116N/09; 116N/10; 116N/15; 116N/16; 116O; 116P; 117A; 117B/01; 117B/08; 117B/09; 117B/16; 117C/01; 117C/08; 117C/09; 117C/16; 117D |
| Lat/Long WENS | -141.0000 -112.0000 71.0000 60.0000 |
| Subjects | economic geology; geophysics; general geology; surficial geology/geomorphology; regional geology; seismic interpretations; seismic surveys; seismic data; bedrock geology; groundwater; permafrost; ground
ice; drift deposits; till stratigraphy; ice thickness; health hazards; aggregates; structural analyses; petroleum exploration; Seismic shothole logs |
| Illustrations | drill logs; graphs; location maps; geological maps; Landsat images |
| Program | GEM2: Geo-mapping for Energy and Minerals Western Arctic Project Management |
| Released | 2015 06 01 |
| Abstract | Seismic shothole drillers' logs, record the near-surface (avg. 18.6 m deep) lithostratigraphy encountered when drilling holes to place explosive charges. These records offer a largely unrecognized
wealth of geoscience information in areas for which little may be otherwise known. Stored in the Basic Files archives of petroleum exploration and seismic acquisition companies, this study first convinced companies of the potential utility of this
data, then recovered the hard copy and digitally scanned records (paper, fiche, microfilm) and rendered these into a digital database and GIS. The final database of 343,989 records provides the largest source of geoscience information of its kind in
northwestern Canada, and in many cases contains unique and original records on a host of subjects including surficial-, bedrock-, and hydro-geology, permafrost, and geohazards. The drillers' log records have further been used to create geospatial
models of drift, till, muskeg, massive ice and ground ice thicknesses, and continue to be applied to new avenues of research such as temporal variations of bottomfast ice extents in offshore shallow marine environments. Published in freely
downloadable Geological Survey of Canada Open File reports and providing commonly used database and GIS file formats, this data rescue exercise preserves and greatly enhances what was becoming an increasingly discarded corporate data set of
unrecognized potential. |
| Summary | (Plain Language Summary, not published)
This article is submitted to the on-line journal GeoResJ as part of its special issue "Rescuing Legacy Data for Future Science." The article reviews and
summarizes a collection of 343 989 seismic shothole drillers' logs (and 12 GSC Open-File thematic publications based thereon) constructed from a forgotten card-file archive at the GSC and the entire archival holdings of all (23) petroleum and seismic
exploration companies historically and presently active in NWT and Yukon . The drillers¿ logs recorded sediment types, thicknesses and other characteristics and provide invaluable information relevant to all manner of infrastructure and resource
development in northwestern Canada (e.g., granular aggregate resources, permafrost and ground ice, geohazards, drift thickness). This research took a disregarded data source of formerly unrecognized potential and established a comprehensive
¿state-of-knowledge¿ synthesis |
| GEOSCAN ID | 295514 |
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