| Titre | Archival data mining activities in northwestern Canada: serendipitous science and its use in advancing understanding of Quaternary environments |
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| Auteur | Smith, R |
| Source | INQUA 2019: 20th Congress of the International Union for Quaternary Research, programme; P-1270, 2019 p. 1  Accès ouvert |
| Liens | Online - En ligne
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| Image |  |
| Année | 2019 |
| Séries alt. | Ressources naturelles Canada, Contribution externe 20180354 |
| Éditeur | International Union for Quaternary Researc |
| Réunion | INQUA 2019: 20th Congress of the International Union for Quaternary Research; Dublin; IE; juillet 25-31, 2019 |
| Document | site Web |
| Lang. | anglais |
| Media | en ligne; numérique |
| Formats | html; pdf |
| Province | Territoires du Nord-Ouest |
| SNRC | 65; 66; 75; 76; 77; 78; 79; 85; 86; 87; 88; 89; 95; 96; 97; 98; 99; 105; 106; 107; 117 |
| Lat/Long OENS | -136.5000 -102.0000 90.0000 60.0000 |
| Sujets | collectes des données; diagraphie géophysique; données sismiques; échantillons prélevés au hasard; diagraphie des sondages; lithostratigraphie; lithogéochimie; sediments; dépôts glaciaires; tills; dépôts
glaciaires; géologie du substratum rocheux; lithologie; industrie pétrolière; puits d'exploration; épaisseur de la couverture meuble; isopaques; épaisseurs des glaces; gisements minéraux; aggrégats; analyse environnementales; Exploration de données;
Base de données; Données géographiques; Système d'information géographique; Industrie minière; géologie des dépôts meubles/géomorphologie; géologie régional; géophysique; géochimie; sédimentologie; paléontologie; géologie économique; géologie de
l'environnement; Nature et environnement; Sciences et technologie; Économie et industrie |
| Programme | GEM2 : La géocartographie de l'énergie et des minéraux Bassin de Sverdrup de l'ouest de l'Arctique |
| Diffusé | 2019 07 01 |
| Résumé | (disponible en anglais seulement)
Many examples of known and likely yet to be discovered archival datasets held by industry, governments, and regulatory bodies contain invaluable treasure troves
(sometimes quagmires) of observational and instrumental data. Recognizing and identifying the potential of these (particularly those collected for unrelated/unintended purposes) is often a first step to constructing databases that enable significant
and at time serendipitous advances in understanding diverse aspects of Quaternary environments. This study provides examples of three such projects and discusses their application and issues surrounding data formats, accessibility, interoperability,
and uptake by researchers and the public. Momentum created by these kinds of database projects manifests in establishing formal arrangements for future data collection, standardization, and digital integration.
The first dataset discussed is
seismic shothole drillers' logs which were dismissed by industry as 'junk data' and only fleetingly used by Mackay and Rampton in the early 1970s to investigate buried ice in Tuktoyaktuk Peninsula, Canada, and by the Geological Survey of Canada in
1974-1975 as an aid to hurried surficial geology mapping along a proposed 1400 km pipeline corridor. These logs of shallow (avg. 18.6 m deep) lithostratigraphy were collected by industry as a means of simply understanding what the seismic charge was
seated in (pertaining to implications for potential static interferences). Originally discovered by the author as a forgotten archive of 76 000 4 in. x 6 in. paper file cards with hand-written and typed logs, these led to a 4 year industry-wide
archival recovery project, that manifested as the single largest source (n=360,000 records) of baseline, near-surface geoscience information across 0.5 million km2 of northwestern Canada. Interpolative databases, and derivative GIS products and
models led to more than 12 thematic geoscience reconstructions ranging from geohazard identification, granular aggregate resources, and regional till facies, to offshore marine bottom-fast and winter lake ice thickness and extents, to baselines for
assessing vegetative recolonization and habitat alteration.
The second dataset relates to grab samples collected during drilling of seismic shotholes that were then used to provide lithogeochemical information. Approximately 9000 basal and
intermediary sediment/bedrock samples were collected over a 4 year period of intense seismic exploration activity through the western Canadian arctic mainland and island archipelago. These samples permitted preliminary lithological, sedimentological,
paleontological, and geochemical assessments to be made across a vast, often unexplored area, greatly expanding the understanding and mapping of regional geology.
The final dataset relates to diamond drill hole and petroleum well logs reported in
exploration company assessment reports filed with government regulators in Canada's Northwest Territories. These provide unique records of drift and bedrock thicknesses, and are being used to construct drift isopach maps and model till and other
glacial deposit facies as an aid to regional mineral exploration activities. |
| Sommaire | (Résumé en langage clair et simple, non publié)
Ce résumé, soumis pour une présentation par affiches, décrit trois projets qui ont exploité différentes archives d'informations géologiques afin
de fournir de nouvelles informations sur les environnements du Quaternaire. La compréhension et les interprétations soutenues par ces activités d'exploration de données apportent des avantages importants aux différents objectifs du projet GEM et
élargissent l'impact et l'applicabilité plus larges des programmes de recherche de la CGC sur l'exploration et la mise en valeur des ressources du Nord, ainsi que sur les infrastructures et les collectivités durables du Nord. |
| GEOSCAN ID | 313512 |
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