https://www.cambridge.org/core/journals/journal-of-glaciology/article/direct-observation-of-salts-as-microinclusions-in-the-greenland-grip-ice-core/28F271DF7913FCF6D55BFBB3AA05AF84
Direct observation of salts as micro-inclusions in the Greenland GRIP ice core - Volume 55 Issue 193
direct observationsaltsmicroinclusionsgreenland