Обозначения условные графические для использования на крупномасштабных картах, планах и геологических поперечных разрезах. Часть 3. Изображение магнитных пород
Название (англ.):
Graphical symbols for use on detailed maps, plans and geological cross-sections; Part III : Representation of magmatic rocks
Описание (англ.):
Provides a unified series of symbols and ornaments for the representation of magmatic rocks. The symbols and ornaments may be divided in two groups as follows: principal types; varia. They have been reproduced in two tables which, being derived from a logical system, may be completed easily in case of need.