Geology 18 Quantitative Geology Statistical methods 18 Earth Sciences 15 Earth sciences 15 Computer simulation 5 Simulation and Modeling 5 Earth Sciences, general 4 Geophysics 4 Geophysics/Geodesy 4 Statistics 4 Geotechnical Engineering & Applied Earth Sciences 3 Geotechnical engineering 3 Statistics for Engineering, Physics, Computer Science, Chemistry and Earth Sciences 3 Economic Geology 2 Fossil Fuels (incl. Carbon Capture) 2 Fossil fuels 2 Geochemistry 2 Geographic information systems 2 Geographical Information Systems/Cartography 2 Geology, Economic 2 Hydrogeology 2 Sedimentology 2 Amorphous substances 1 Application software 1 Atmospheric Sciences 1 Atmospheric physics 1 Catalysis 1 Characterization and Evaluation of Materials 1 Cheminformatics 1