|Wall Paintings at Mogao Grottoes
A salt survey established the distribution of soluble salts present throughout the cave at four incremental depths into the surface of the plaster. The pattern of deterioration present in Cave 85 directly correlates with the survey results which show a higher salt content in the plaster toward the rear, west end of the cave. Salt survey data from the east wall showing relatively low amounts of soluble salts. Credit: The Getty Conservation Institute.