Description There are many jobs within the field of geology, which itself is part of a broader field of the Geosciences. There are numerous fields of study listed either directly or indirectly, including: mineralogy, petrology (rocks), volcanology, seismology (earthquakes), hydrology (streams, rivers, lakes), hydrogeology (groundwater), glaciologists, coastal geologists, and paleontologists (study fossils and historical geology), […]