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TitleAnalysis of improved government geological map information for mineral exploration: incorporating efficiency, productivity, effectiveness, and risk considerations
AuthorBernknopf, R L; Wein, A M; St-Onge, M R; Lucas, S B
SourceGeological Survey of Canada, Bulletin 593, 2007, 45 pages,
Alt SeriesUnited States Geological Survey, Professional Paper 1721
PublisherNatural Resources Canada
Mediapaper; on-line; digital; CD-ROM
RelatedThis publication is a translation of Bernknopf, R L; Wein, A M; St-Onge, M R; Lucas, S B; (2007). Analyse de l'information améliorée offerte par les cartes géologiques publiées par le gouvernement aux fins de l'exploration minérale : intégration de considérations sur l'efficience, la productivité, l'efficacité et le risque, Geological Survey of Canada, Bulletin no. 593
File formatpdf
AreaCanada; United States
Subjectseconomic geology; regional geology; mathematical and computational geology; mineral exploration; exploration guidelines; governments; bedrock geology; economic analyses; models; mineral exploration statistics; mapping techniques; productivity; methodology; geoscientific information value; bedrock geologocal maps; map resolution; mineral exploration investment; attribute-ranking; mineral favourability domains; exploration targets; efficiency; effectiveness; risk; cost; decision models; case studies; geographic information system
Illustrationsplots; tables; sketch maps; bar graphs
LinksOnline - En ligne
Released2007 12 01
AbstractThis bulletin focuses on the value of geoscientific information and knowledge, as provided in published government bedrock geological maps, to the mineral exploration sector. An economic model is developed that uses an attribute-ranking approach to convert geological maps into domains of mineral favourability. Information about known deposits in these (or analogous) favourability domains allow the
calculation of exploration search statistics which provide input into measures of exploration efficiency, productivity, effectiveness, risk, and cost stemming from the use of the published geological maps. Two case studies, the Flin Flon Belt (Manitoba and Saskatchewan) and the south Baffin Island area (Nunavut), demonstrate that updated, finer resolution maps provide more detailed and accurate information than old, coarser resolution maps when used as a guide for mineral exploration. The Flin Flon Belt study illustrates that an updated, coarser resolution bedrock map enables improved mineral exploration efficiency, productivity, and effectiveness by locating 60% more targets and supporting an exploration campaign that is 44% more efficient. Refining the map resolution provides an additional 17% reduction in search effort across all favourable domains and a 55% reduction in search effort in the most favourable domain. The south Baffin Island case study projects a 40% increase in expected targets and a 27% reduction in search effortwhen the updated, finer resolution map is used in lieu of the old, coarser resolution map. On southern Baffin Island, the economic value of the updated map ranges from CAN$2.28 million to CAN$15.21 million, which can be compared to the CAN$1.86 million that it cost to produce the map (a multiplier effect of up to eight).