Integrated outcrop, drill core, borehole and seismic stratigraphic architecture of a cyclothemic, shallow‐marine depositional system, Wanganui Basin, New Zealand
Bibliographic record
Abstract
Abstract Late Pliocene to mid‐Pleistocene (c. 2.1–0.4 Ma) strata exposed in the, now classical, Nukumaru and Castlecliff coastal cliff sections north‐west of Wanganui comprise 25, 6th (41 ka) order and 5th (100 ka) order, shallow‐marine to marginal marine stratigraphic sequences, deposited during global glacioeustatic sea‐level cycles corresponding to Marine Isotope Stages (MIS) 78–10. Here, we characterise the sequences using: (1) a series of drill cores sited above and behind the coastal outcrops, which recovered a composite record of c. 450 m, (2) a new high resolution multichannel seismic reflection profile acquired along the beach adjacent to the coastal cliffs, and (3) downhole digital logs from the boreholes. This paper integrates the outcrop and subsurface datasets to produce a high resolution model of the stratigraphic signatures and 2D architecture of a cyclical, shallow‐marine deposition system. Such models have significant applications to petroleum exploration, and enable the distribution of reservoir facies and intervening seal rocks within sequences, together with the nature of the connectivity of sandstone facies between sequences, to be evaluated. Similar hydrocarbon‐producing systems within the Eocene Kapuni Group (e.g., Mangahewa and Kaimiro formations) have been, and are still, the focus of intense exploration in Taranaki Basin.
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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 | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.001 |
| Insufficient payload (model declined to judge) | 0.000 | 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".