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Record W2899286368 · doi:10.1002/9781119249740.ch7

Frayed Edges of Cratonic Mantle Keels

2018· other· en· W2899286368 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.
fundA Canadian funder is recorded on the work.
aboutThe title or abstract carries a Canadian signal from the geographic lexicon.

Bibliographic record

VenueGeophysical monograph · 2018
Typeother
Languageen
FieldEarth and Planetary Sciences
TopicHigh-pressure geophysics and materials
Canadian institutionsNatural Resources CanadaUniversity of Calgary
FundersNatural Sciences and Engineering Research Council of Canada
KeywordsCratonGeologyLithosphereAsthenosphereMantle (geology)KeelSeismogramGeophysicsLow-velocity zoneDownwellingSeismologyUpwellingTectonics

Abstract

fetched live from OpenAlex

Lithospheric mantle keels beneath cratons are substantially colder than the surrounding asthenosphere. If processes of delamination or thermochemical erosion create a new edge that abruptly juxtaposes internal parts of a cratonic keel with convecting upper mantle, the intact part of the keel will be heated along the edge by thermal diffusion. Sustained heating along a newly exposed edge will lead to a reduction in seismic-wave speed and density within a slowly expanding region of the lithospheric keel. Here, we combine thermal-diffusion modeling with mineral-physics relations to explore the predicted seismic expression of this process, as well as the potential for characterizing its time dependence. Examples are presented that are broadly representative of proposed models for the western edge of Laurentia beneath the Canadian Cordillera and the boundary between the Ordos Block and the eastern North China craton. Analysis of synthetic seismograms indicates that teleseismic body-wave delay times could be used to characterize an edge-proximal velocity reduction in order to provide an upper-bound estimate on time of formation of a craton edge.

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 categoriesMeta-epidemiology (narrow), Insufficient payload (model declined to judge)
Consensus categoriesInsufficient payload (model declined to judge)
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Not applicable · Consensus signal: Not applicable
GenreCandidate signal: Other · Consensus signal: none
Teacher disagreement score0.459
Threshold uncertainty score1.000

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0000.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0010.000
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)0.0190.004

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 head0.009
GPT teacher head0.203
Teacher spread0.194 · 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