aheraine SiO2 sisaldusega alla 52 % (vrd happeline aheraine)
rocks with a low silica (SiO2) content; the limits are usually placed at 45 % silica, below which rocks are described as ultrabasic, and 52 % silica, above which they are described as intermediate (compare: acid rock)
Online Language Learning Tool SkELL allows users to search for phrases in sentences, collocates and similar words. These examples have been automatically selected and may contain errors.
