A Rocky Road: Chert Characterization at ST 109, Keatley Creek Site, British Columbia
Bibliographic record
Abstract
Globally, chert is the most common rock material found in archaeological contexts.Its prevalence on the Earth's surface in Quaternary deposits and relative abundance in archaeological contexts indicate that it was an important resource material for ancient populations and, as such, can provide information about toolstone exploitation in prehistory.The results of this research suggest a local origin for the chert artefacts recovered from ST 109 at the Keatley Creek site (EeRl-7) in the mid-Fraser region of south-central British Columbia, but also to a remote origin for the toolstone deposits found within the study area.Elemental characterization suggests that although the chert deposits in the study area are geographically separate, they are likely derived from a larger parent chert source, redeposited in the mid-Fraser region by glacial activity prior to human occupation of the area.This thesis also demonstrates through the application of the Keatley Creek Lithic Typology that the visible properties of colour and texture are not a reliable means for discerning the provenance of chert artefacts.
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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 | 0.002 | 0.003 |
| Science and technology studies | 0.005 | 0.001 |
| Scholarly communication | 0.001 | 0.000 |
| Open science | 0.001 | 0.001 |
| Research integrity | 0.000 | 0.001 |
| Insufficient payload (model declined to judge) | 0.007 | 0.001 |
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".