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Record W2146052346 · doi:10.2113/gscanmin.44.1.31

RARE-ELEMENT MINERALOGY OF THE UZUMINE GRANITIC PEGMATITE, ABUKUMA MOUNTAINS, NORTHEASTERN JAPAN

2006· article· en· W2146052346 on OpenAlexvenueno aff
T. Nakajima, Masanori Kurosawa

Bibliographic record

VenueThe Canadian Mineralogist · 2006
Typearticle
Languageen
FieldEarth and Planetary Sciences
TopicGeological and Geochemical Analysis
Canadian institutionsnot available
Fundersnot available
KeywordsPegmatiteTourmalineGeologyMineralogyHumanitiesGeochemistryQuartzArt

Abstract

fetched live from OpenAlex

Nous documentons la structure interne, les textures, et les mineraux enrichis en elements rares de la pegmatite granitique de Uzumine, situee dans les montagnes Abukuma au nord-est du Japon, afin de connaitre les compositions chimiques, les processus de formation, et les conditions de mise en place d'une pegmatite a elements rares mise en place dans un socle metamorphique equilibre a faible temperature et a faible pression. Le filon de pegmatite se distingue par une abondance de tourmaline, monazite, et euxenite, avec de faibles proportions d'andalusite et de corindon, et une absence de mineraux lithiniferes et fluores. Le filon est fortement zone, a partir d'une zone de paroi, une zone intermediaire, et un noyau de quartz sans cavites miarolitiques. Une zone de bordure n'a pas ete observee a cause de l'alteration et du cisaillement. La pegmatite a ete mise en place syntectoniquement il y a environ 96 million d'annees dans le socle metamorphique d'Abukuma a faible profondeur dans la croute (1-1.5 kbar, 300°C). Les textures et compositions des mineraux indiquent la cristallisation sequentielle de la zone de bordure jusqu'au noyau de quartz a mesure que la temperature a diminue. La zonation des cristaux de tourmaline et de grenat indique une cristallisation au cours de la differenciation chimique avec temperature decroissante. D'apres le couple Fe-Mn dans les oxydes, le degre de fractionnement est moyen, mais le degre de fractionnement indique par le couple Nb-Ta est plutot faible.

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 machine prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.

metaresearch head score (Codex)0.000
metaresearch head score (Gemma)0.000
Version: metacan-v3-hybrid-931329e0061cValidation 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 score0.054
Threshold uncertainty score0.108

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0000.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0010.001
Science and technology studies0.0010.000
Scholarly communication0.0000.000
Open science0.0000.000
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0000.000

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 head0.009
GPT teacher head0.172
Teacher spread0.163 · 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 source (direct Gemma or distilled Codex), not a consensus.

The models applied no category: nothing in the taxonomy fit this work.
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

Citations11
Published2006
Admission routes1
Has abstractyes

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