Stable isotope and XRD data from the Lower-Middle Devonian carbonates with focus on paleosols, Northwest Territories, Canada
Bibliographic record
Abstract
This collection of data and description of lab protocols supplements publication (Kabanov, 2021). The diamond-drill cores from historical exploration wells of Northwest Territories, Canada, were sampled over the period from 2013 to 2020 for the study of subaerial exposure profiles (paleosols and paleokarsts) and other facies in the shallow-marine (peritidal) carbonates of the Early-Middle Devonian Landry and Headless formations. Samples were collected with hand tools under hand lens and, where required, binocular microscope. Stable carbon and oxygen measurements (delta-13C and delta-18O vs. VPDB) were performed at the Jan Veizer Stable Isotope Lab of the University of Ottawa. Mineralogy of 18 samples were completed by powder X-ray diffraction (XRD) analyses for bulk-rock and clay-size fractions at the Mineralogy Lab of GSC-Ottawa. Our analytical results provide the largest set of mineralogy and stable isotope data available from the Landry and Headless formations and can be reused in future projects exploring the diagenetic pathways of isotopic reset in these strata and the follow-up studies of subaerial exposure profiles. We also describe the curation procedure and give sample access information for the core and sample repository at GSC Calgary.
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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) | 0.001 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.003 | 0.007 |
| Science and technology studies | 0.003 | 0.000 |
| Scholarly communication | 0.001 | 0.000 |
| Open science | 0.001 | 0.001 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.008 | 0.002 |
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".