Historic geology was based in the distant past and geology is in modern times.

Robert J. Foster has written:

'Physical geology' -- subject(s): Physical geology

'Historical geology' -- subject(s): Historical geology

Reed Wicander has written:

'Historical geology' -- subject(s): Problems, exercises, Historical geology

Physical and historical geology. Meteorology is weather science.

Physical geology: examination of materials and processes on and beneath the earth's surface during historical times.

Historical geology: examination of the origin of the earth and the life upon it, and changes to both through prehistorical time. Emphasis in on the information held in layered rock record and fossils.