Spatial distribution and grades of conjugate veins associated with mesothermal saddle reef gold mineralization, The Ovens, Nova Scotia : implications for an open pit resource
Bibliographic record
Abstract
A 228 m long E-W oriented cliff section of continuous exposure along the north shore of Rose Bay, The Ovens, Nova Scotia, was measured along a reference line to determine the locations and attitudes of conjugate, thrust-related and bedding parallel (saddle reef) Au-quartz-sulphide veins within the Cunard Formation, Halifax Group, Meguma Supergroup. Over 1700 veins ranging from less than 1 mm to 173 mm wide were observed. A variety of statistical tests were performed to determine whether these veins are randomly located in space. All results indicate that these veins exhibit a non-random distribution. Net lateral dilation accommodated by west-dipping conjugate veins does not exhibit a significant trend; however, east-dipping conjugate veins become sparser but exhibit more net dilatancy to the west and down-section toward a basal thrust. Metallic gold grade results from 0.5 to 3 kg of vein material exhibit a highly positively skewed distribution with concentrations ranging from 0.016 to 60.911 grams per tonne. Using an ideal Poisson grade distribution with identical mean (2.742 grams per tonne), the observed vein width distributions and the observed vein frequency distributions, a Monte Carlo simulation using 5700 1 m³ block realizations was undertaken to produce a hypothetical model for tonnage, grade and dilution curves for this mineralization. Results provide insight into the potential open pit economic feasibility of Au-bearing quartz-sulphide vein saddle reef stockworks associated with anticlines within the Meguma Supergroup.
Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.
How this classification was reachedexpand
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 | 0.001 | 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 itClassification
machine, unvalidatedMachine predicted; a candidate call from one teacher head, not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".