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Record W1987206455 · doi:10.1139/e10-103

A fission track transect across Nares Strait (Canada–Greenland): further evidence that the Wegener Fault is a myth

2011· article· en· W1987206455 on OpenAlexaffvenueabout
Kirsten Hansen, P.R Dawes, Thomas Frisch, P. Jensen

Bibliographic record

VenueCanadian Journal of Earth Sciences · 2011
Typearticle
Languageen
FieldEarth and Planetary Sciences
TopicGeological Studies and Exploration
Canadian institutionsGeological Survey of Canada
Fundersnot available
KeywordsGeologyPaleontologyPaleozoicPrecambrianFission track datingSedimentary rockNorth American PlateSedimentary basinPlate tectonicsSeismologyTectonics

Abstract

fetched live from OpenAlex

Many workers continue to model Nares Strait between Greenland and Ellesmere Island, Canada, as a plate boundary and locus of major Cenozoic compression and strike-slip, marked by the postulated Wegener (transform) Fault. This, despite continuity of Precambrian–Paleozoic provinces across the seaway including an undeformed Neoproterozoic mafic dyke swarm that crosses at a high angle. As a test of the speculative plate kinematic modelling, apatite fission track (AFT) dating was undertaken along a transect across the Paleoproterozoic shield of Smith Sound, at the south end of Nares Strait, running from sea level to ca. 600 m elevation and as much as 70 km inland on both sides. The shield is overlain by three sedimentary basins separated by major hiatuses. The AFT ages fall into two groups: 282 ± 34 and 650 ± 51 Ma. They indicate maximum depth was >4 km in the lower Paleozoic from both coasts to 50 km inland, and at >50 km inland temperatures were below the annealing interval throughout Phanerozoic time. During the past ca. 280 million years, the rocks of both age groups suffered only minor displacements. The ages form an unbroken, harmonious pattern along the transect with no evidence of thermotectonism since the Permo-Carboniferous. These quantitative data support the field mapping that demonstrates Smith Sound and environs constitute an intact crustal block unaffected by lithospheric fracturing. Nares Strait is not the site of a plate boundary. The Wegener Fault does not exist.

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.

How this classification was reachedexpand

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)0.001
metaresearch head score (Gemma)0.000
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: Observational
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.243
Threshold uncertainty score0.996

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0010.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.000
Science and technology studies0.0010.000
Scholarly communication0.0000.000
Open science0.0010.000
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0050.000

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 head0.108
GPT teacher head0.238
Teacher spread0.131 · 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

Classification

machine, unvalidated

Machine predicted; a candidate call from one teacher head, not a consensus.

Study designObservational
Domainnot available
GenreEmpirical

How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".

Quick stats

Citations18
Published2011
Admission routes3
Has abstractyes

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