Mutual relationships between spodumene and petalite from the Iberian Massif pegmatites: more than PT changes?
Bibliographic record
Abstract
Research Article| September 30, 2019 Mutual relationships between spodumene and petalite from the Iberian Massif pegmatites: more than PT changes? Filipa Dias; Filipa Dias § Department of Geosciences, Environment and Land Planning, Faculty of Sciences, University of Porto, Rua Campo Alegre, Porto, Portugal; ICT (Institute of Earth Sciences) – Porto pole (Portugal) § Corresponding author e-mail address: filipa.dias@fc.up.pt Search for other works by this author on: GSW Google Scholar Alexandre Lima; Alexandre Lima Department of Geosciences, Environment and Land Planning, Faculty of Sciences, University of Porto, Rua Campo Alegre, Porto, Portugal; ICT (Institute of Earth Sciences) – Porto pole (Portugal) Search for other works by this author on: GSW Google Scholar Encarnación Roda-Robles Encarnación Roda-Robles Departamento de Mineralogía y Petrología, Univ. País Vasco (UPV/EHU), Barrio Sarriena s/n, 48940-Leioa, Spain Search for other works by this author on: GSW Google Scholar Author and Article Information Filipa Dias § Department of Geosciences, Environment and Land Planning, Faculty of Sciences, University of Porto, Rua Campo Alegre, Porto, Portugal; ICT (Institute of Earth Sciences) – Porto pole (Portugal) Alexandre Lima Department of Geosciences, Environment and Land Planning, Faculty of Sciences, University of Porto, Rua Campo Alegre, Porto, Portugal; ICT (Institute of Earth Sciences) – Porto pole (Portugal) Encarnación Roda-Robles Departamento de Mineralogía y Petrología, Univ. País Vasco (UPV/EHU), Barrio Sarriena s/n, 48940-Leioa, Spain § Corresponding author e-mail address: filipa.dias@fc.up.pt Publisher: Mineralogical Association of Canada First Online: 07 Oct 2019 Online Issn: 1499-1276 Print Issn: 0008-4476 © 2019 Mineralogical Association of Canada The Canadian Mineralogist (2019) 57 (5): 731–732. https://doi.org/10.3749/canmin.AB00006 Article history First Online: 07 Oct 2019 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn MailTo Tools Icon Tools Get Permissions Search Site Citation Filipa Dias, Alexandre Lima, Encarnación Roda-Robles; Mutual relationships between spodumene and petalite from the Iberian Massif pegmatites: more than PT changes?. The Canadian Mineralogist 2019;; 57 (5): 731–732. doi: https://doi.org/10.3749/canmin.AB00006 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 SocietyThe Canadian Mineralogist Search Advanced Search Spodumene (LiAlSi2O6) and petalite (LiAlSi4O10) are two aluminosilicates rich in lithium (Li) that may be found in highly fractionated pegmatites (Černý & Ercit 2005). They are considered important Li sources in the present economy (European Commission 2018). According to the stability diagram from London (1984), these aluminosilicates are stable at different PT conditions: petalite is the high temperature Li-aluminosilicate, whereas spodumene is more stable at higher pressures than petalite. Therefore, the occurrence of these minerals has been used many times as a PT indicator for the formation... You do not have access to this content, please speak to your institutional administrator if you feel you should have access.
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot 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.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.001 | 0.001 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.000 |
| Bibliometrics | 0.004 | 0.003 |
| Science and technology studies | 0.003 | 0.002 |
| Scholarly communication | 0.002 | 0.001 |
| Open science | 0.001 | 0.002 |
| Research integrity | 0.001 | 0.000 |
| Insufficient payload (model declined to judge) | 0.006 | 0.001 |
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.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.
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".