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Record W2963880762

Catalogue and Analysis of MacEwan University's Meteorite Collection

2019· article· en· W2963880762 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.

Bibliographic record

VenueStudent Research Proceedings · 2019
Typearticle
Languageen
FieldPhysics and Astronomy
TopicAstro and Planetary Science
Canadian institutionsMacEwan University
Fundersnot available
KeywordsMeteoritePetrographyGeologyIgneous rockAchondriteGeochemistryShock metamorphismMineralogyFeldsparChondriteWeatheringAstrobiologyPaleontologyPhysicsQuartz
DOInot available

Abstract

fetched live from OpenAlex

MacEwan University possesses a collection of eighteen meteorites. As part of this study, the meteorite samples were catalogued to include essential information such as level of shock and weathering, petrographic type, location of the find or fall, mineralogy, and a description of the hand specimen, as well as any data published on individual samples from the peer-reviewed literature. Within the collection is an unclassified meteorite, Northwest Africa (NWA) “X”, believed to be lunar in origin. NWA X has no entry within the Meteoritical Bulletin and literature searches have not turned up any previous studies on this meteorite. This meteorite therefore became the focus of a concentrated effort to classify NWA X based on its mineralogy, microtextures ans composition. Observations were made on a single polished thin section, using a petrographic microscope, a scanning electron microscope, and a Raman spectrometer. These instruments revealed a brecciated texture, displaying high levels of shock metamorphism, as well as several igneous lithologies with grains of anorthite, a Ca-rich feldspar. These attributes are consistent with classification of this meteorite as lunar. Secondary weathering products such as barite, BaSO4, which formed during the meteorite’s residence in the Saharan desert, have also been characterized. This compiled information was then added to the catalogue to complete the meteorite’s entry.   Faculty Mentor: Erin Walton and Robert Hilts Department: Earth and Planetary Sciences

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)0.001
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 score0.018
Threshold uncertainty score0.269

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0010.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.002
Science and technology studies0.0000.000
Scholarly communication0.0000.000
Open science0.0000.000
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0000.000

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 head0.031
GPT teacher head0.327
Teacher spread0.295 · 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