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aheraine SiO2-sisaldusega üle 60 % (vrd aluseline aheraine), silica-rich rock with silica (SiO2) content over 63 % (compare: basic rock)
happeline aheraine . Materjalitehnika terminibaas. Estonian Language Institute, Sõnaveeb 2026. https://sonaveeb.ee/search/unif//mtr/happeline%20aheraine/1/est (17.07.2026)
