Answer:
Colors and Rock units
Step-by-step explanation:
The geological maps usually refer to those maps that are commonly used to describe the geological characteristics of the land area such as the type of rocks present, dip and strike of the beds and their directions, presence of folds and faults and their orientation, bedding plane and the age of the rocks.
This type of map is commonly used by geologists.
This map is usually identified by the presence of different colors that represents the different rock units.