REGIONAL ICE-FLOW MAPPING, SURFICIAL GEOLOGY AND TILL GEOCHEMISTRY OF THE NORTHERN BURIN PENINSULA AND ADJACENT PLACENTIA BAY
Bibliographic record
Abstract
The entire study area appears to have been covered by late Wisconsinan ice. Two major ice flows were identified; an early south-southeastward event from a source to the north crossed the entire area, followed by a westward flow in the southern half of the area and a southwestward flow into Fortune Bay in the central part; the early flow was likely main Newfoundland ice from a centre to the north. It is well defined in the striation record, in terrestrial landforms, and on the multibeam data from Placentia Bay, where southeastward-trending submerged drumlins are clearly evident. The westward flow was from an offshore source or from the Avalon Peninsula; this is suggested from the striation record but appears to have little geomorphic signature. The southwestward flow into Fortune Bay is likely a late-stage topographically controlled event. Much of the northern part is covered by a blanket of locally derived granite-rich till; flutes are common. The remainder of the area has a thin, discontinuous veneer of till and numerous bedrock outcrops. Glaciofluvial sediments are confined to the larger valleys, commonly feeding into glaciomarine deposits. The effect of regional isostatic rebound was to produce raised marine features around much of the coastlines of Fortune and Placentia bays up to about 20 m asl. Material for radiocarbon dating has not been found in these areas to assist in the definition of a relative sea-level curve or to provide dates on regional deglaciation. Drift-exploration programs should carefully consider the affect the distribution of raised marine and glaciofluvial deposits will have on their sampling programs, or in interpreting data produced from such surveys.
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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 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.001 | 0.001 |
| Science and technology studies | 0.001 | 0.000 |
| Scholarly communication | 0.001 | 0.000 |
| Open science | 0.000 | 0.001 |
| 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 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".