Impact des émissaires et canalisation sur l'environnement de la baie de Tanger ( Maroc ) : Approche géochimique.
Bibliographic record
Abstract
Several samples collected from two main rivers (Souani and Mghogha) and the largest pipeline of Tangier’s city that pours into Tangiers bay (Mediterranean Moroccan margin), were analysed with the objective of evaluating the chemical and/or organic contamination degree of superficial sediments present along these continental emissaries. The sedimentary dynamics of these rivers show coarsening upstream evolution, influenced by the urban and industrial liquid and solid discharges (infilling basin side with building materials such a bricks, cement, glass, etc.). Organic matter is present with high concentration, showing a positive correlation with the sediment fine fraction. Total Nitrogen displays a parallel evolution with the organic matter, with especially high concentrations near the urban sewage. The six heavy metals analyzed in the superficial sediments, show variable but relatively high concentrations, mainly in the fine fraction, with Zn < Cr < Pb < Ni < Cu < Cd. The correlative study of these metallic elements prove their double anthropogenic and natural origin.
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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) | 0.001 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.001 | 0.001 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.001 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.001 | 0.000 |
| Insufficient payload (model declined to judge) | 0.002 | 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".