550 550 551 551.2 551.3 551.4 551.5-6 551.7 551.9 552 553 553.2 554 555-559 560 GEOVETENSKAPER Geovetenskaper Earth sciences Geologi, hydrologi Geology, hydrology Vulkaner, seismologi Volcanos, seismology Ytprocesser, exogena processer Surface and exogenous processes Geomorfologi och hydrosfären Geomorphology and hydrosphere Meteorologi, klimatologi Meteorology, climatology Historisk geologi Historical geology Geokemi Geochemistry Petrologi Petrology Ekonomisk geologi Economic geology Kolhaltiga bergarter, fossila bränslen Carbonaceous materials, fossil fuels Geovetenskaper, Europa Earth sciences: Europé Geoveteenskaper, Övriga världen Earth sciences; Rest of the world Paleontologi Paleontology