IODP SEDIS - Thesaurus -

areal geology
RT	bibliography
	expeditions
	explanatory text
	geology
	guidebook
	maps
	regional
SN	Used for entries that might properly be placed under three or more of the major discipline headings such as geomorphology, stratigraphy, structural geology.

Areal Geology (category)
SN	Areal geology, GeoRef category code 13, is one of thirty categories used to classify documents in GeoRef. Each reference in GeoRef is assigned one or more categories. Categories can be used, in addition to Terms, to refine searches (See List A.).