用于详细地图、平面图和地质剖面图的图形符号 第3部分:岩浆岩的表示法
详细信息   
文摘
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.
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