Geophysical Case Study of the Gallen Deposit, Quebec, Canada
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Bibliographic record
Abstract
Research Article| January 01, 2007 Geophysical Case Study of the Gallen Deposit, Québec, Canada L.Z. Cheng; L.Z. Cheng † 1Université du Québec en Abitibi-Témiscamingue, 445 boul. de l'Université, Rouyn-Noranda, Québec, J9X 5E4. †Corresponding Author: E-mail: li_zhen.cheng@uqat.ca Search for other works by this author on: GSW Google Scholar R.S. Smith; R.S. Smith 2Fugro Airborne Surveys, 2060 Walkley Road, Ottawa, Ontario, K1G 3P5. Search for other works by this author on: GSW Google Scholar M. Allard; M. Allard 3Noranda Inc, Division de l'Exploration, 3296, avenue Francis Hughes, Laval, Québec, H7L 5A7. Search for other works by this author on: GSW Google Scholar M. Chouteau; M. Chouteau 4École Polytechnique de Montréal, Département des Génies civil, géologique et des mines C.P. 6079 Succursale Centre-Ville, Montréal, Québec, H3C 3A7. Search for other works by this author on: GSW Google Scholar P. Keating; P. Keating 5Geological Survey of Canada, Natural Resources Canada, 615 Booth Street, Ottawa, Ontario, K1A 0E9. Search for other works by this author on: GSW Google Scholar J. Lemieux; J. Lemieux 2Fugro Airborne Surveys, 2060 Walkley Road, Ottawa, Ontario, K1G 3P5. Search for other works by this author on: GSW Google Scholar M.A. Vallée; M.A. Vallée 6Fugro Airborne Surveys, 5610, Chemin Bois-Franc, St-Laurent, Montréal, Québec, H4S 1A9. Search for other works by this author on: GSW Google Scholar D. Bois; D. Bois 1Université du Québec en Abitibi-Témiscamingue, 445 boul. de l'Université, Rouyn-Noranda, Québec, J9X 5E4. Search for other works by this author on: GSW Google Scholar D .K. Fountain D .K. Fountain 2Fugro Airborne Surveys, 2060 Walkley Road, Ottawa, Ontario, K1G 3P5. Search for other works by this author on: GSW Google Scholar Author and Article Information L.Z. Cheng † 1Université du Québec en Abitibi-Témiscamingue, 445 boul. de l'Université, Rouyn-Noranda, Québec, J9X 5E4. R.S. Smith 2Fugro Airborne Surveys, 2060 Walkley Road, Ottawa, Ontario, K1G 3P5. M. Allard 3Noranda Inc, Division de l'Exploration, 3296, avenue Francis Hughes, Laval, Québec, H7L 5A7. M. Chouteau 4École Polytechnique de Montréal, Département des Génies civil, géologique et des mines C.P. 6079 Succursale Centre-Ville, Montréal, Québec, H3C 3A7. P. Keating 5Geological Survey of Canada, Natural Resources Canada, 615 Booth Street, Ottawa, Ontario, K1A 0E9. J. Lemieux 2Fugro Airborne Surveys, 2060 Walkley Road, Ottawa, Ontario, K1G 3P5. M.A. Vallée 6Fugro Airborne Surveys, 5610, Chemin Bois-Franc, St-Laurent, Montréal, Québec, H4S 1A9. D. Bois 1Université du Québec en Abitibi-Témiscamingue, 445 boul. de l'Université, Rouyn-Noranda, Québec, J9X 5E4. D .K. Fountain 2Fugro Airborne Surveys, 2060 Walkley Road, Ottawa, Ontario, K1G 3P5. †Corresponding Author: E-mail: li_zhen.cheng@uqat.ca Publisher: Canadian Institute of Mining, Metallurgy and Petroleum Received: 28 Mar 2006 Accepted: 20 May 2006 First Online: 09 Mar 2017 © 2007 Canadian Institute of Mining, Metallurgy and Petroleum Exploration and Mining Geology (2007) 16 (1-2): 67–81. https://doi.org/10.2113/gsemg.16.1-2.67 Article history Received: 28 Mar 2006 Accepted: 20 May 2006 First Online: 09 Mar 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn Email Permissions Search Site Citation L.Z. Cheng, R.S. Smith, M. Allard, M. Chouteau, P. Keating, J. Lemieux, M.A. Vallée, D. Bois, D .K. Fountain; Geophysical Case Study of the Gallen Deposit, Québec, Canada. Exploration and Mining Geology 2007;; 16 (1-2): 67–81. doi: https://doi.org/10.2113/gsemg.16.1-2.67 Download citation file: Ris (Zotero) Refmanager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentBy SocietyExploration and Mining Geology Search Advanced Search Abstract As part of a larger research program, a number of MEGATEM airborne electromagnetic (EM) test flights were flown over the Gallen massive sulfide deposit in northwest Québec. A particularity of this test site is that a major part of the ore body was extracted before the MEGATEM survey. Therefore one of the purposes of this study was to verify the ability of the system to detect the remaining massive sulfides below the water in the open pit. The open pit is also surrounded by a metallic fence, and a power line is present in the vicinity. A large part of the case study involved accounting for the impact of infrastructure and acidic water on the survey, which will help in the interpretation of airborne EM responses in complex exploration situations.The Gallen deposit was also previously flown with the INPUT and GEOTEM airborne EM systems before the major exploitation period. A comparison between the results from the different survey results allows estimation of the physical properties of the Gallen deposit, which is a relatively poor conductor.A new method for removing the power line signal shows amplitudes with a smaller residual associated with the emanating fields, and more compact, cleaner responses associated with induced currents. This will make it easier to identify bedrock conductors close to power lines. You do not have access to this content, please speak to your institutional administrator if you feel you should have access.
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Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it