MétaCan
Menu
Back to cohort
Record W2362953316

Microspherules Found from the Upper Devonian Limestone of Hainan Island

2010· article· en· W2362953316 on OpenAlexaboutno aff
Zhijun Niu

Bibliographic record

VenueScience Technology and Engineering · 2010
Typearticle
Languageen
FieldEarth and Planetary Sciences
TopicGeological and Geochemical Analysis
Canadian institutionsnot available
Fundersnot available
KeywordsBiologyGeologyChemistry
DOInot available

Abstract

fetched live from OpenAlex

Fairly abundant microspherules including carbon microspherules and siliceous microspherules recovered from the Upper Devonian limestone of Jishi Village,Changjiang County,Hainan Island.The chemical composition and occurrence status of carbon microspherules are very similar to that of globular blebs of pyrobitumen found in veins of Precambrian,Canada.However,the Hainan carbon microspherules have very similar surface sculptures of impact microspherules,and differ from the Canada's.It is a unique kind of microspherules.The siliceous microspherules show the same surface sculptures as the impact microtektites'.But there are very few siliceous microspherules in amount,in Hainan.No any structure has been examined from the polished section of the Hainan microspherules.So,they differ from the volcanic origin.In addition,the Hainan microspherules are recovered from the limestone by the method of acid digestion analysis.So,they are not the industrial fly ashes.

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: none
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.024
Threshold uncertainty score0.047

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0000.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0020.001
Science and technology studies0.0010.000
Scholarly communication0.0000.000
Open science0.0000.000
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0010.000

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 head0.003
GPT teacher head0.165
Teacher spread0.162 · 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

Citations2
Published2010
Admission routes1
Has abstractyes

Explore more

Same venueScience Technology and EngineeringSame topicGeological and Geochemical AnalysisFrench-language works237,207