International Organization for Standardization (ISO)
Latest
ISO 710-4:1982
Scope
Provides a unified series of symbols and ornaments for the representation of metamorphic rocks. The symbols and ornaments may be divided in two groups as follows: principal types; varia. They are reproduced in two tables which, being derived from a logical system, may be completed easily in case of need.
ISO 710-4:1982 history
1982ISO 710-4:1982 Graphical symbols for use on detailed maps, plans and geological cross-sections; Part 4 : Representation of metamorphic rocks