Обозначения условные графические для использования на крупномасштабных картах, планах и геологических поперечных разрезах. Часть 4. Изображение метаморфических пород
Название (англ.):
Graphical symbols for use on detailed maps, plans and geological cross-sections; Part 4 : Representation of metamorphic rocks
Описание (англ.):
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.