geo-fiction

Noun

geofiction (uncountable)

1. The conception and creation of a fictional cartographic design that is the setting of a work of fiction or of one's imagination; worldbuilding.
   • It may, however, be regarded as typical that this is often the type of story in which undue attention is paid to the description of the 'ficticious' ^([sic]) geographical environment (a striking example being the geofiction of The Lord of the Rings).2011, Stijn Reijnders, Places of the Imagination: Media, Tourism, Culture, Ashgate, →ISBN, page 111
2. (specifically) The conception and creation of realistic geological processes and landforms for the purposes of a fictional world.