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Record W2324965518 · doi:10.1130/g33599.1

Recurrent Early Triassic ocean anoxia

2012· article· en· W2324965518 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.
aboutThe title or abstract carries a Canadian signal from the geographic lexicon.

Bibliographic record

VenueGeology · 2012
Typearticle
Languageen
FieldEarth and Planetary Sciences
TopicPaleontology and Stratigraphy of Fossils
Canadian institutionsUniversity of CalgaryGeological Survey of CanadaNatural Resources Canada
Fundersnot available
KeywordsCitationIconGeological surveyLibrary scienceHistoryGeologyArchaeologyPaleontologyComputer science

Abstract

fetched live from OpenAlex

Research Article| February 01, 2013 Recurrent Early Triassic ocean anoxia S.E. Grasby; S.E. Grasby 1Geological Survey of Canada–Calgary, Natural Resources Canada, 3303 33rd Street N.W., Calgary, Alberta T2L 2A7, Canada2Department of Geosciences, University of Calgary, 2500 University Drive N.W., Calgary, Alberta T2N 1N4, Canada Search for other works by this author on: GSW Google Scholar B. Beauchamp; B. Beauchamp 2Department of Geosciences, University of Calgary, 2500 University Drive N.W., Calgary, Alberta T2N 1N4, Canada Search for other works by this author on: GSW Google Scholar A. Embry; A. Embry 1Geological Survey of Canada–Calgary, Natural Resources Canada, 3303 33rd Street N.W., Calgary, Alberta T2L 2A7, Canada Search for other works by this author on: GSW Google Scholar H. Sanei H. Sanei 1Geological Survey of Canada–Calgary, Natural Resources Canada, 3303 33rd Street N.W., Calgary, Alberta T2L 2A7, Canada2Department of Geosciences, University of Calgary, 2500 University Drive N.W., Calgary, Alberta T2N 1N4, Canada Search for other works by this author on: GSW Google Scholar Geology (2013) 41 (2): 175–178. https://doi.org/10.1130/G33599.1 Article history received: 07 May 2012 rev-recd: 08 Aug 2012 accepted: 18 Aug 2012 first online: 09 Mar 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn MailTo Tools Icon Tools Get Permissions Search Site Citation S.E. Grasby, B. Beauchamp, A. Embry, H. Sanei; Recurrent Early Triassic ocean anoxia. Geology 2013;; 41 (2): 175–178. doi: https://doi.org/10.1130/G33599.1 Download citation file: Ris (Zotero) Refmanager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentBy SocietyGeology Search Advanced Search Abstract The Early Triassic record, from the Smithian stratotype, shows that the organic carbon isotope record from northwest Pangea closely corresponds to major fluctuations in the inorganic carbon records from the Tethys, indicating truly global perturbations of the carbon cycle occurred during this time. Geochemical proxies for anoxia are strongly correlated with carbon isotopes, whereby negative shifts in δ13Corg are associated with shifts to more anoxic to euxinic conditions, and positive shifts are related to return to more oxic conditions. Rather than by a delayed or prolonged recovery, the Early Triassic is better characterized by a series of aborted biotic recoveries related to shifts back to ocean anoxia, potentially driven by recurrent volcanism. You do not have access to this content, please speak to your institutional administrator if you feel you should have access.

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 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 score0.126
Threshold uncertainty score1.000

Codex and Gemma teacher scores by category

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

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 head0.021
GPT teacher head0.228
Teacher spread0.207 · 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