Chapter 35 Regional seismic interpretation of crustal framework, Canadian Arctic passive margin, Beaufort Sea, with comments on petroleum potential
Why this work is in the frame
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Bibliographic record
Abstract
Abstract Three new regional 2D seismic surveys in the Beaufort Sea provide a broad, deeper view of basins and crustal structure of the Meso-Cenozoic Canadian Arctic passive margin. The seismic profiles cover 16 270 km from inner shelf to over 2000 m water depth and include areas previously unsurveyed due to sea-ice limits. The surveys cover offshore Mackenzie Delta and extend north to Latitude 74°N off Banks Island. Geological interpretation is tied to exploratory wells in the Beaufort–Mackenzie Basin that has yielded 48 oil and gas discoveries in Cretaceous–Oligocene sandstones. The entire Meso-Cenozoic passive margin wedge beyond the depocentre ties into this established petroleum system. Three segments of the margin are defined by orientation and structural styles, from typical passive margin geometry to wrench structures to a compressional foldbelt superposed on the western segment. Outboard seismic profiles image oceanic crust and the inferred extinct spreading centre of the Canada Basin. The continent–ocean boundary is interpreted using gravity data supported by deep seismic reflectors. The regional deep imaging of the tectonic architecture, structural sequence and tectonostratigraphy of each segment are major results, and advance the understanding of the geological framework of known and potential petroleum basins of the Arctic margin of Canada.
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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 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.003 | 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 it