Mineralogical and radioactive properties of some Egyptian granitoid rocks and their suitability for ornamental stones
Bibliographic record
Abstract
Granitoid rocks are widely distributed all over the Egyptian Shield, constituting approximately 60% of its plutonic assemblage. Granitoid ornamental stones could be commercially defined as a visibly granular, igneous rocks ranging in color from pink to light or dark grey. Detailed mineralogical composition was investigated by using polarizing microscope (Olympus BX50, Japan) and X-ray diffraction (XRD) X-ray model X’ Pert ProPhillips MPD PW 3050/60 X-ray diffractometer. Radiometric measurement is recommended before utilizing the decoration stones which could be used in different purposes of construction especially indoor purposes. Twelve selected representative samples from some Egyptian granitoids rocks were examined by using Inductive Coupled Plasma Mass Spectrometer (ICP-MS) in Acme Analytical labs, Canada. The measured values were in ppm and would be transformed to Bq/kg which normally used to measure it in construction or building materials. Based on radiation measurement of (U and Th) for the studied granitoids of Gabal Shawab and Gabal Abu Shieh El-Atshan granites lie within the world-wide safety limits of constructing building materials, while Gabal El-Sibai and Gabal Homrit El-Gergab granites not realize these safety requirements. Homrit El-Gergab granitoids represented the highest concentration of the studied granitoids while Gabal Shawab represented the lowest one. Ornamental stones of G. Shawab and Wadi Abu Shieh El-Atshan are suitable for all construction weather indoor or outdoor decoration purposes.
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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 | 0.002 | 0.002 |
| Science and technology studies | 0.001 | 0.000 |
| Scholarly communication | 0.001 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.001 | 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".