| Title | Controls on the localization and timing of mineralized intrusions in intra-continental rift systems, with a specific focus on the ca. 1.1 Ga Mid-Continent Rift system |
| Download | Download (whole publication) |
| |
| Licence | Please note the adoption of the Open Government Licence - Canada
supersedes any previous licences. |
| Author | Bleeker, W ;
Liikane, D A; Smith, J; Hamilton, M; Kamo, S L; Cundari, R;
Easton, M; Hollings, P |
| Source | Targeted Geoscience Initiative: 2017 report of activities, volume 2; by Rogers, N (ed.); Geological Survey of Canada, Open File 8373, 2018 p. 15-27, https://doi.org/10.4095/306594  Open Access |
| Year | 2018 |
| Publisher | Natural Resources Canada |
| Document | open file |
| Lang. | English |
| Media | on-line; digital |
| Related | This publication is contained in Targeted Geoscience
Initiative: 2017 report of activities, volume 2 |
| File format | pdf |
| Province | Ontario |
| NTS | 41J; 41K; 41L; 41M; 41N; 41O; 41P; 42A; 42B; 42C; 42D; 42E; 42F; 42G; 42H; 42L; 52A; 52B; 52G; 52H; 52I |
| Area | Lake Superior; Lake Nipigon; Michigan; Wisconsin; Minnesota; Canada; United States of America |
| Lat/Long WENS | -94.0000 -80.0000 51.0000 45.0000 |
| Subjects | economic geology; tectonics; geochronology; tectonic setting; tectonic evolution; rifts; intrusions; sills; dykes; magmatism; mineral deposits; mineral exploration; mineral potential; nickel; copper;
cobalt; sulphide deposits; ore mineral genesis; mineralization; ore controls; bedrock geology; lithology; igneous rocks; intrusive rocks; mafic intrusive rocks; carbonatites; ultramafic rocks; kimberlites; volcanic rocks; basalts; sedimentary rocks;
structural features; faults; unconformities; radiometric dating; uranium lead dating; Mid-Continent Rift; Bayfield Group; Jacobsville Sandstone; Oronto Group; Freda Sandstone; Nonesuch Shale; Copper Harbour Conglomerate; Bessemer Quartzite; Sibley
Group; Precambrian; Proterozoic |
| Illustrations | geoscientific sketch maps; tables; photographs |
| Program | Targeted Geoscience Initiative (TGI-5) Knowledge Management Coordination |
| Program | Targeted Geoscience Initiative (TGI-5) Nickel-copper-PGE-chromium systems |
| Released | 2018 03 01 |
| Abstract | A brief report is presented on the early stages of our study of the ca. 1.1 Ga Mid-continent Rift system, which hosts a diverse range of intrusions, many of which are mineralized and are being actively
explored. Key questions to be ad-dressed by this study are the localization of the mineralized intrusions, and whether we can resolve, through addition-al and more precise U-Pb geochronology, clear temporal, spatial, and tectonic patterns that link
the various intrusions to the overall evolution of the rift system, and to specific stages of the flood basalt sequence. An initial compilation is presented of all known intrusions and their associated questions. |
| Summary | (Plain Language Summary, not published)
The Targeted Geoscience Initiative (TGI) is directed towards providing next generation knowledge and methods to facilitate more effective targeting of
buried mineral deposits. The program aims to enhance the effectiveness of exploration for Canada¿s major mineral systems by resolving foundational geoscience problems that constrain the geological processes responsible for the liberation metals from
their source region, transportation of these ore metals and control their eventual deposition. TGI supports projects on gold, Ni-Cr-PGE, porphyry-style mineralization, uranium and volcanic- and sedimentary-hosted base metal mineralization ore
systems, with each project divided into subprojects focused on resolving specific knowledge gaps by integrating data and studies from multiple sites across Canada. Herein, we present interim results and interpretations from a selection of the
research activities currently being conducted under the auspices of TGI. |
| GEOSCAN ID | 306594 |
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