Geochemical Signatures of Pegmatites of Odu-Ore Area, Southwestern Nigeria: Indications for Rare Metal, Precious and Industrial Minerals
Bibliographic record
Abstract
This investigation was conducted to ascertain the geochemical properties and economic potentials of recently mapped pegmatites around Odu-Ore which is a component of the polycyclic Precambrian Basement Complex in southwest Nigeria. Ten (10) pegmatite samples were subjected to whole-rock geochemical analysis using Inductively Coupled Plasma Mass Spectrometry (ICP-MS) at Activation Laboratories, LTD. (ACTLABS), Canada. According to field studies, the region is underlain by granite-gneiss, quartzite, pelitic schist, amphibolites, and pegmatites. Virtually all of the pegmatite samples were found to be of igneous ancestry by comparing the Na O/Al O and 2 2 3 K O/Al O plots, while the Rb/Sr plot showed that the pegmatite bodies, which are now well-exposed, were deposited 2 2 3 between 20 and 30 km of crustal thickness during the late-to-post (Pan African) tectonic period (emplacement). Mineralization potentials range from high to moderate in this area; however, pegmatites hosted by pelitic-schist and those at schist-amphibolite contacts showed a higher degree of potential than those hosted by other lithologies, and many of the bodies have the potential to produce industrial minerals.
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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 | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.001 | 0.001 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 0.000 |
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.
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".