Seismic stratigraphy of the lower St. Lawrence River estuary (Quebec) Quaternary deposits and seismic signature of the underlying geological domains
Bibliographic record
Abstract
The lower St. Lawrence River estuary is a narrow Quaternary basin filled with several stacked sedimentary units. Recently, high-resolution seismic-reflection surveys conducted in the lower St. Lawrence River estuary permitted identification of eight seismic units overlying three lithotectonic domains with different seismic signatures. Units 1 and 2 have highly variable thickness and fill most of two major bedrock depressions that exist in the study area. Unit 3 is present over the entire lower St. Lawrence River estuary basin, partly infilling ponded basins found on the shoulders of the estuary. Units 4 and 5 have a more constant thickness, suggesting that they were deposited in a hemipelagic setting. Units 6, 7, and 8 result from local processes like the sedimentation of submarine fans, mass-wasting deposits, and contourite drifts occurring along the flanks of the Laurentian Channel. The thickness of the Quaternary succession shows a strong correlation with the bedrock topography, indicating that the lower St. Lawrence River estuary was an effective sediment trap.
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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 | 0.001 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.001 | 0.000 |
| Research integrity | 0.001 | 0.001 |
| Insufficient payload (model declined to judge) | 0.001 | 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".