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Record W1862045631

Clay and Magnetite Formation at Yellowknife Bay, Mars

2014· article· en· W1862045631 on OpenAlexaboutno aff
J. C. Bridges, S. P. Schwenzer, Richard Léveillé, Francès Westall, R. C. Wiens, N. Mangold, T. F. Bristow, P. Edwards, Gilles Berger

Bibliographic record

VenueOpen Research Online (The Open University) · 2014
Typearticle
Languageen
FieldPhysics and Astronomy
TopicPlanetary Science and Exploration
Canadian institutionsnot available
Fundersnot available
KeywordsGeologySaponiteDiagenesisGeochemistryMagnetiteMars Exploration ProgramClay mineralsMartianPrecambrianBayMineralogyAstrobiologyPaleontologyOceanography
DOInot available

Abstract

fetched live from OpenAlex

The Curiosity Rover of Mars Science Laboratory, has analysed a set of mudstones at the Yellowknife Bay locality of Gale Crater, that record a history of deposition within a habitable, fluvio-lacustrine environment followed by low T alteration. The composition and mineralogical information preserved in the sediments provide a unique opportunity to determine the nature of the environment. In particular we aim to constrain the mineral reactions, Water/Rock ratios, pH, and redox associated with the saponite-, magnetite-bearing assemblage identified by CheMin in the Sheepbed mudstone and compare to martian clay compositions in the Lafayette nakhlite. The presence of cm-scale ridges, which have a more Mg-rich compo-sition than the surrounding mudstone, suggest that the diagenetic fluids changed in composition as alteration progressed. An important factor in our alteration model is the presence of amorphous material and olivine, together with secondary phases in the drilled samples.

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 categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Not applicable · Consensus signal: none
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.808
Threshold uncertainty score0.656

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 communication0.0000.002
Open science0.0010.002
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 head0.074
GPT teacher head0.319
Teacher spread0.246 · 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.

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

Citations0
Published2014
Admission routes1
Has abstractyes

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