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Record W1543532835 · doi:10.1029/gm020p0501

Flambeau Anomaly: A High-Conductivity Anomaly in the Southern Extension of the Canadian Shield

2011· book-chapter· en· W1543532835 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.

aboutThe title or abstract carries a Canadian signal from the geographic lexicon.
no affNo Canadian affiliation: this work is invisible to an affiliation-only frame.
No Canadian affiliation. An affiliation-only frame, the usual design, would never have seen this work. It is one of the works that make the case for inverting the frame.

Bibliographic record

VenueGeophysical monograph · 2011
Typebook-chapter
Languageen
FieldEarth and Planetary Sciences
TopicGeological and Geophysical Studies
Canadian institutionsnot available
Fundersnot available
KeywordsAnomaly (physics)GeologyElectrical resistivity and conductivityShieldCrustGeophysicsOhmElectrical conductorSouth Atlantic AnomalyPetrologyPhysicsCondensed matter physicsMagnetic fieldMagnetosphereVan Allen radiation belt

Abstract

fetched live from OpenAlex

Electrical resistivity measurements in northern Wisconsin show the presence of a large high-conductivity anomaly in the crust. The anomaly, which we refer to as the Flambeau Anomaly, is approximately 20 km wide, lies roughly along 46°N latitude, and extends east of 91°W longitude for more than 100 km. Detailed airborne electromagnetic surveys over parts of the anomaly show that the anomalous region consists of four to six roughly parallel conductive formations. Core samples from these formations indicate that graphite, sulfides, and iron formation are the principle conductive materials causing the anomaly. Numerical analysis of resistivity soundings surrounding the Flambeau Anomaly indicates the following layered earth crustal structure: (1) a surficial cover of 0 to 100 m thickness has a resistivity of a few hundred ohm meters; (2) a second layer has a resistivity of a few thousand ohm meters and a thickness of 5 to 10 km; (3) a third layer has a resistivity of greater than 105 ohm m; (4) at depths of 15 to 25 km the resistivity decreases to the order of 1000 ohm m. Our model of the Flambeau Anomaly consists of five thin vertical half plane conductors. Numerical modeling indicates that the conductors extend to a depth of the order of 10 km. The Flambeau Anomaly appears to be a major structural feature in the southern extension of the Canadian Shield.

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 score0.264
Threshold uncertainty score0.960

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 studies0.0000.001
Scholarly communication0.0000.000
Open science0.0010.000
Research integrity0.0000.001
Insufficient payload (model declined to judge)0.0010.001

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 head0.026
GPT teacher head0.177
Teacher spread0.151 · 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