Γεωχημεία και Πετρολογία Geochemistry and Petrology isi - Resources in this category may focus on either Geochemistry or Geophysics or both. Geochemistry covers resources that deal with the chemical composition and chemical changes in the Earth or other planets or asteroids. Topics include research on related chemical and geological properties of substances, applied geochemistry, organic geochemistry, and biogeochemistry. Geophysics covers resources on the application of the methods and techniques of physics to the study of the structure of the Earth and the processes affecting it. Topics addressed include seismology, tectonics, tectonophysics, geomagnetism, radioactivity, and rock mechanics. Φυσικές Επιστήμες ▶ Γεωεπιστήμες και Επιστήμες Περιβάλλοντος ▶ Γεωχημεία και Πετρολογία Natural Sciences ▶ Earth and related Environmental Sciences ▶ Geochemistry and Petrology Petrology Geochemistry Geochemistry Petrology Επιστημονικά Πεδία ΕΑΔΔ Scientific disciplines of the National Archive of Ph.D. Theses sc - Geochemistry & Petrology isi - GEOCHEMISTRY & GEOPHYSICS