Guide to Geology What is Geology?      Geo  – Earth,  logy  – science, so geology can be simply defined as the science of Earth. From the center of the core to the exosphere (outermost layer of the atmosphere), anything and every that happens naturally can be studied under the subject called geology. It was also called  Rock Science , as most of the data source for the subject is from rocks. Subject covers (Branches) Origin of Earth (Dynamic Geology),  Process of formation and alteration of landforms (Geomorphology) Evolution of life (Palaeontology) Study of rocks (Petrology) Civil engineering construction (Engineering geology) Exploitation of minerals (Mining geology) Oil & Gas (Petroleum geology) Study of physical properties of earth (Geophysics) Earths chemical properties study (Geochemistry) and the list goes on., Key Concepts of Geology      We need to know about the types of rocks found in vast areas of the earth. With the...