Glacilacustrine sedimentation processes at Llewellyn Inlet, Atlin Lake, British Columbia: Implications for Little Ice Age climate change
Bibliographic record
Abstract
The Llewellyn Glacier discharges from the Juneau Icefield into Llewellyn Inlet along the southwest margin of Atlin Lake in northwestern British Columbia. Patterns of sediment accumulation and deposition processes are reconstructed using Ekman, gravity and percussion cores (0.35--1.34 m) and CHIRP sub-bottom acoustics in order to establish a link between Little Ice Age (LIA) climate change and the style and quantity of sediment delivered to Llewellyn Inlet. 137Cs dating from cores demonstrate that the surface sediments are varved and allow for reconstruction of a sediment accumulation records for the last 275 years. There is a dramatic reduction in sediment delivery since 1950 related to the opening of a pro-glacial lake at the terminus of the Llewellyn Glacier. The sediment chronology matches other regional LIA glacier chronologies showing two phases of probably glacier advance, but provides a new and higher resolution record of climate-induced changes.
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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 | 0.002 |
| Science and technology studies | 0.001 | 0.001 |
| Scholarly communication | 0.001 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.003 | 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 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".