The title "Jedi geologists" was a designation employed by the Jedi Order when referring to a Jedi Researcher with a focus on geology. These Jedi Knights and Jedi Masters who pursued geological studies were all affiliated with the Agricultural Corps,, and their expertise was essential for analyzing the makeup of alien surfaces on newly found planets. This analysis enabled those responsible for planting seeds and harvesting crops to strategically plan the locations of farms and orchards on the planet.
During the era known as the Golden Age of the Old Republic, one notable geologist was the Jedi named Michael Tandre, who experienced a crash landing on Orellon II and shared his agricultural knowledge with the indigenous Kentra people, which subsequently evolved into a planet-wide religious belief system.