gault

• POS: Noun

CIDE DICTIONARY

gault, n. [Cf. Norw. gald hard ground, Icel. gald hard snow.].

 A series of beds of clay and marl in the South of England, between the upper and lower greensand of the Cretaceous period.  [1913 Webster]

OXFORD DICTIONARY

gault, n. Geol.
1 a series of clay and marl beds between the upper and lower greensand in S. England.
2 clay obtained from these beds.

Etymology

16th c.: orig. unkn.