Observations on sediment chemistry of the Slave River Delta, Northwest Territories, Canada.
Bibliographic record
Abstract
A study was conducted to examine sediment chemistry in the outer, mid and apex areas of the Slave River Delta, Northwest Territories, Canada. Delta sediments consisted primarily of quartz (60-82%) with lesser amounts of calcite (2-6%), feldspars (8-15%), micas (3-7%), montmorillonite (2-9%), dolomite/ankerite (2-4%) and kaolinite (3-5%). The mineralogy and major element composition was remarkably similar in the outer, mid and apex areas of the delta. Concentrations of Cu, Cd, Cr, Pb, As and Hg were significantly higher in the mid-delta. Elevated metal concentrations in this section of the delta are related to geomorphic and hydraulic controls, which cause selective sorting and fining of sediment in smaller mid-delta channels where vegetation is important for sediment trapping and metal cycling. Concentrations of Hg, Cd and As in all samples exceeded the Potential Effect Level of the Canadian Sediment Guidelines for the Protection of Aquatic Life.
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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 | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.002 | 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".