(1)  That branch of the geosciences that deals with the interplay between the human mind and geology,
not in an analytical, medical, or academic sense, but in the way that rocks and other geologic phenomena influence our thoughts and actions.
       (2)  The study of mental life and behavior in relation to geological processes.
       (3)  The science of motivation by geological phenomena.
       (4)  Within the context of the Noosphere, it explores and examines the boundary between rocks and other forms of life.
       (5)  The study of the laws and specific effects of the geological environment, consciously organized or not, on the emotions and behavior of individuals.

       Visit psychogeology.net -- a blog where Mind is Shaped by the Earth.