The document discusses the importance of information technology (IT) in geology. It describes how tools like GPS, GIS, remote sensing, data analysis, modeling and simulation have revolutionized data collection and analysis in geology. GPS helps geologists map locations accurately, GIS enables analysis and mapping of geological features, and remote sensing allows observation of Earth from satellites. Data analysis and visualization help geologists understand patterns and share findings. Geological modeling and simulation create virtual replicas of Earth's processes over time. IT has significantly improved how geologists study the Earth.