supratidal sediment

supratidal sediment

[¦sü·prə′tīd·əl ′sed·ə·mənt]
(geology)
The sediment deposited immediately above the high-tide level.
References in periodicals archive ?
Bird's-eye structures and vugs form in supratidal sediments as a result of shrinkage and expansion, gas bubble formation, air escape during flooding, wrinkles in algal mats or even by development of evaporites (Shinn 1968).