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Record W2888271949 · doi:10.1029/2018jb015768

Frictional Mechanics of Slow Earthquakes

2018· article· en· W2888271949 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

VenueJournal of Geophysical Research Solid Earth · 2018
Typearticle
Languageen
FieldEarth and Planetary Sciences
Topicearthquake and tectonic studies
Canadian institutionsGeomechanica (Canada)
FundersPennsylvania State UniversityNational Science Foundation
KeywordsSlip (aerodynamics)MechanicsInstabilityGeologyRheologySlip line fieldEpisodic tremor and slipSeismologyPhysicsTectonicsSubductionShear (geology)Petrology

Abstract

fetched live from OpenAlex

Abstract Tectonic faults slip in a wide range of modes that span from slow slip events to dynamic rupture. A growing body of observations document this spectrum of failure modes in many geologic settings. However, the physical mechanisms that dictate slow slip are not understood. Here we investigate the mechanics of slow slip using carefully controlled laboratory experiments that demonstrate a complete spectrum of slip modes: Laboratory stick‐slip event durations span from seconds to milliseconds, representing the equivalent of failure events that span the range from slow to dynamic earthquakes. The rheological critical stiffness k c is the primary control on the mode of slip, but higher‐order effects including velocity dependence of the frictional rate parameter and critical slip distance also play an important role. We also find that quasi‐dynamic instability results from negligible stress drop near the stability boundary, in tandem with negative feedback during slip acceleration rooted in the rate dependence of k c . Our work shows that a broad spectrum of slip behaviors can arise from a common frictional mechanism modulated by fault zone rheology and elastic properties.

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)0.002
metaresearch head score (Gemma)0.001
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesInsufficient payload (model declined to judge)
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Observational · Consensus signal: none
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.763
Threshold uncertainty score0.999

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0020.001
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.001
Science and technology studies0.0000.000
Scholarly communication0.0000.000
Open science0.0000.000
Research integrity0.0000.001
Insufficient payload (model declined to judge)0.0020.001

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 head0.052
GPT teacher head0.325
Teacher spread0.273 · 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