Abraham Werner & his followers in the 18th c. were called Neptunists; they believed that all rocks were formed here
In the 18th 
century, rocks were explained in terms of the biblical ... Werner's ideas had many 
followers and they came to be known as Neptunists, after Neptune,... [DOC] [TLE] Neptunism | geology | Britannica.com [PAR] The two major theories of the 18th century were the Neptunian and the Plutonian.