Upper Cretaceous and Tertiary stratigraphy on the Tuktoyaktuk Peninsula, Northwest Territories
Bibliographic record
Abstract
Improved biostratigraphy and a better understanding of the regional geology of the Beaufort-Mackenzie Basin allows for an improved understanding of the Upper Cretaceous to Tertiary geology of the Tuktoyaktuk Peninsula. Early work tended to group large packages of sedimentary rock into undivided units, although some units, such as the Smoking Hills Formation, were commonly identified. Physical correlations from 90 wells integrated with biostratigraphic data from 32 wells has led to the identification of the following transgressive-regressive sequences and associated foraminiferal biozones: Boundary Creek (barren of foraminifera), Smoking Hills (Spiroplectammina spirocompressa Zone), Mason River (Haplophragmoides bilobatus Zone), Fish River (Convallina caverna Zone), Aklak (Reticulophragmium boreale Zone and an informal upper Aklak assemblage zone), and Iperk (unzoned terrestrial and reworked microfossils). Boundary Creek strata are identified primarily by physical correlations, but with some confirmation from limited palynological data. Iperk strata include some Quaternary beds because of the difficulty of separating these units in subsurface data. The Upper Paleocene to lowest Eocene Aklak Sequence is the most widespread unit and it rests erosionally on a variety of older units. Aklak strata contain the only hydrocarbons found in Upper Cretaceous and Tertiary strata of the Tuktoyaktuk Peninsula - in delta-front sandstone of the middle to upper part of the Aklak Sequence. Boundary Creek and Smoking Hills strata are organic-rich and are known source rocks for some of the oil discoveries on the Tuktoyaktuk Peninsula and Mackenzie Delta.
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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 | 0.001 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| 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 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".