| 1. | PETROGENESIS AND TECTONIC EVOLUTION OF THE RING COMPLEXES IN SOUTH EASTERN DESERT, EGYPT: A CASE STUDY FROM EL-GEZIRA ALKALINE ASSOCIATION | |
| Pages 1-23 | ||
| ABDELHADY RADWAN; ASHRAF EMAM; GEHAN B. ELSHAYEB; MOHAMMED H. YOUNIS | ||
| 2. | MINERALOGY, GEOCHEMISTRY AND RADIOACTIVITY OF GRANITIC ROCKS AND ASSOCIATED FLUORITE-QUARTZ VEINS, GABAL ADEDIA, UM BOGMA AREA, SOUTHWESTERN SINAI, EGYPT | |
| Pages 25-49 | ||
| DOAA A. MOSTAFA | ||
| 3. | Leaching of rare earth elements from phosphate rock using sulfuric acid: Process optimization and kinetic studies | |
| Pages 51-65 | ||
| WALID M. YOUSSEF; OSAMA E. ROSHDY; MAHMOUD M. EL-MAADAWY; WAEL M. ELMAADAWY; MOHAMED H. TAHA | ||
