Gravity and magnetic modelling of southern Northland Basin, New Zealand
Why this work is in the frame
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Bibliographic record
Abstract
SummaryA combined interpretation of gravity, magnetic and seismic data has been used to investigate some key structural elements of the southern part of the Northland Basin which lies off the west coast of North Island, New Zealand. 2-D seismic reflection data reveal a thick sedimentary sequence, a number of significant structural highs and large Miocene volcanic complexes. The basement reflector is generally poorly imaged, especially below locations where volcanics are evident at shallower levels in the seismic sections. Gravity and magnetic maps clearly show the locations of the major volcanic centres which have strong anomalies (up to 50 mGal and 800 nT). In addition, a belt of positive magnetic anomalies (up to ~200 nT) trends N-S in the south and NW-SE in the north. This follows the strike of the main structural trends in the region and suggests the occurrence of a highly magnetic basement terrane. Preliminary 2.75D gravity and magnetic modelling shows that the Miocene volcanic bodies are broader than previously interpreted and extend to basement depths. Modelling also shows that the top of the basement is deeper (up to 9 km) than is evident in the seismic sections. The gravity and magnetic data therefore are invaluable in resolving some of the ambiguities in the seismic interpretation.
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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) | 0.000 | 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 it