Ny. Bhatt et al., Occurrence and palaeoenvironmental significance of sand domes and sand holes in sandstone of Chari Formation near Bhuj, Kachchh, Gujarat, J GEOL S IN, 58(4), 2001, pp. 361-363
Structures such as sand domes, sand holes and bubble/cavernous sand found i
n the Chari Sandstone of Kachchh owe their origin to trapping and escaping
of air between two water saturated layers of sand in fluctuating tidal cond
itions.