A GIS-Based Geological Model for Assessing the Reserves of Phosphate in the Tozeur-Nefta Field, Southern Tunisia
Sarra Ouerghi

The Estimation of Soil Organic Matter Variation in Arid and Semi-Arid Lands Using Remote Sensing Data
Majed Ibrahim, Fatima Ghanem, Afnan Al-Salameen, Abdallah Al-Fawwaz

Do Near-Solar-System Supernovae Enhance Volcanic Activities on Earth and Neighbouring Planets on Their Paths through the Spiral Arms of the Milky Way, and What Might Be the Consequences for Estimations of Earth’s History and Predictions for Its Future?
Heinz-Juergen Brink

Tectonic Analysis of the Al Hamadah Al Hamra Plateau of the Ghadamis Basin (NW Libya): Hydrological Network, Sinkholes, Folds and Fractures. Style of Reactivation and Setting of Cenozoic Volcanism
Mahmoud A. Benissa, Jean Chorowicz

Refinement and Quantification of Terrain-Induced Effects on Global Gravity Data
Ojima I. Apeh, Elochukwu C. Moka, Victus N. Uzodinma, Elijah S. Ebinne