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Record W4412182178 · doi:10.1080/00288306.2025.2519711

Paleoseismology of the Long Valley Fault, Central Otago, New Zealand

2025· article· en· W4412182178 on OpenAlex

Why this work is in the frame

A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.

affAt least one author lists a Canadian institution in the pinned OpenAlex snapshot.

Bibliographic record

VenueNew Zealand Journal of Geology and Geophysics · 2025
Typearticle
Languageen
FieldEarth and Planetary Sciences
Topicearthquake and tectonic studies
Canadian institutionsMcGill University
Fundersnot available
KeywordsGeologyPaleoseismologyFault (geology)SeismologyGeochemistryGeomorphology

Abstract

fetched live from OpenAlex

ABSTRACT We document the paleoseismology of the Long Valley Fault, Central Otago, New Zealand. A single trench excavated across the 21 km long, northeast‐striking reverse fault reveals evidence for three ground‐rupturing earthquakes. Optically Stimulated Luminescence dates (including OxCal analysis) of displaced sedimentary units are used to constrain the timings of these events. The antepenultimate event is constrained at 74.4 ka (81.4–67.6 ka, 95% confidence interval), the penultimate event at 37.4 (55.2–19.1) ka, and the most recent event at 10.5 (14.3–6.7) ka. These events show a total of 5 ± 0.2 m of dip slip in the trench, with a range of 1–2 m displacement per event. The estimated magnitude and mean recurrence interval for the Long Valley Fault are Mw 6.9 ‐ 7.0 and 32.0 ± 12.3 kyrs, respectively. The study contributes to the growing Otago paleoseismic database, which will eventually be used to understand regional space–time deformation behaviours in transpressional tectonic environments.

Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.

Full frame distilled prediction

Teacher imitation

Not 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.

metaresearch head score (Codex)0.000
metaresearch head score (Gemma)0.000
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Observational · Consensus signal: Observational
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.075
Threshold uncertainty score0.507

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0000.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.000
Science and technology studies0.0000.000
Scholarly communication0.0000.000
Open science0.0000.000
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0000.000

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.

Opus teacher head0.007
GPT teacher head0.212
Teacher spread0.204 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it