Bibliographic record
Abstract
The Nogah Creek (NTS 94I/12) map sheet was inundated by the Laurentide Ice Sheet during the late Wisconsinan glaciation (ca. 25 000 - 10 000 years ago). Bedrock was not encountered during field operations anywhere in the map area, instead thick clay and fine-silt-rich till deposits appear to blanket almost the entire region. One particularly deep borrow pit exposed >24 m of till, suggesting that thrusting and stacking of till sheets is likely to have occurred. The remarkably flat topography, coupled with the relative impermeability of the regional till has led to surface ponding of water and the development of extensive organic fen and bog deposits. Given the impermeability of the till, much of the area is characterized by a perched aquifer at surface. Several borrow pits dug in such a manner as to prevent surface drainage from the surrounding peatlands into them were observed to remain dry, excepting that attributable to meteoric water accumulation, for two or more years. This suggests that the groundwater table is situated well below surface. Where peat has accumulated, it is likely underlain by permafrost, and probably contains significant amounts of ground ice as evidenced by extensive thermokarst and kettled topography. During deglaciation, the region was occupied by an increasingly lobate eastward retreating ice mass. Moraines in the southern part of the map area likely record terminal ice margin positions, while large meltwater channels in the northern map area correspond to drainage along earlier lateral ice margins. The southwestern corner of the map area borders what is interpreted to have been a subglacial tunnel valley. Evidence in support of this interpretation include its regional morphology, the presence of extensive glaciofluvial sand and gravel deposits flooring its base and lateral margins that are capped by 1-4 m of till, and moraines that drape the landscape, transverse to the long-profile of the valley. The sub-till gravel deposits (Tb/Gt) were exposed in numerous borrow pits dug during construction of the Nogah side road. There, 1-4 m of clay-rich till overly, 2-4 m of well sorted, foreset and planar-cross bedded fine to medium gravels and sand. Used opportunistically to top-dress local roads, these deposits are projected to extend laterally across a 5 x 0.5 km area, but pale in comparison to the enormous (>1 million m3) Elleh Creek coarse gravel deposit situated 5 km to the southwest of the map area.
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 machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.001 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.001 | 0.003 |
| Science and technology studies | 0.003 | 0.000 |
| Scholarly communication | 0.002 | 0.000 |
| Open science | 0.001 | 0.001 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.039 | 0.005 |
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 source (direct Gemma or distilled Codex), 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".