| Title | Till composition and biogeochemistry near a porphyry Cu-Mo deposit: Gibraltar Mine, British Columbia |
| Download | Downloads |
| Author | Plouffe, A; Anderson, R G; Dunn, C E |
| Source | Geological Survey of Canada, Open File 6755, 2011, 31 pages; 1 CD-ROM, https://doi.org/10.4095/287929 (Open Access) |
| Links | Canadian Database of Geochemical Surveys, downloadable
files
|
| Links | Banque de données de levés géochimiques du Canada,
fichiers téléchargeables
|
| Year | 2011 |
| Publisher | Natural Resources Canada |
| Document | open file |
| Lang. | English |
| Media | CD-ROM; on-line; digital |
| Related | This publication is related to Spirito, W A; McClenaghan, M
B; Plouffe, A; McMartin, I; Campbell, J E; Paulen, R C; Garrett, R G; Hall, G E M; (2011). Till sampling and analytical protocols for GEM Projects: from field to archive, Geological Survey of Canada, Open File 6850 |
| File format | pdf; xls |
| Province | British Columbia |
| NTS | 93B/08 |
| Area | McLeese Lake |
| Lat/Long WENS | -122.5000 -122.0000 52.5000 52.2500 |
| Subjects | economic geology; surficial geology/geomorphology; geochemistry; mineral occurrences; mineral potential; mineralization; glacial deposits; tills; till geochemistry; copper; molybdenum; porphyry copper;
porphyry deposits; ice movement; ice flow; ice movement directions; glacial features; striations; lithology; biogeochemistry; biogeochemical surveys; Gibraltar Mine; Cenozoic; Quaternary |
| Illustrations | photographs; tables; location maps |
| Program | Mountain Pine Beetle, Geoscience for Mountain Pine Beetle Response |
| Program | Targeted
Geoscience Initiative (TGI-4), Intrusion/Porphyry Ore Systems |
| Released | 2011 03 21 |
| Abstract | During the 2008 field season, eleven till, six lodgepole pine and seven Engelmann spruce outer bark samples were collected near a porphyry Cu-Mo deposit (Gibraltar Mine) in central British Columbia. The
purpose of this survey is to test the effectiveness of these sampling medium at detecting mineralization in regions where bedrock mineralization is covered with glacial sediments. Various fractions of the till matrix and bark samples were submitted
for geochemical analyses. Our results demonstrate that minor elements (Au, Ag, Ba, Cu, Mo, Te, Zn) and one major oxide (Al2O3) are enriched to various degree in till down-ice from the Gibraltar ore bodies compared to background concentrations
reported from the Bonaparte Lake map area south of the mine. Similarly, Cu and Mo are more enriched in lodgepole pine and Engelmann spruce outer bark near Gibraltar compared to the Bonaparte survey. These results attest to the utility of till and
tree outer bark geochemical surveys as means to vector towards porphyry mineralization such as that contained in the Gibraltar ore bodies. |
| GEOSCAN ID | 287929 |
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