mudlump

mudlump

[′məd‚ləmp]
(geology)
A diapiric sedimentary structure consisting of clay or silt and forming an island in deltaic areas; produced by the loading action of rapidly deposited delta front sands upon lighter-weight prodelta clays.
References in periodicals archive ?
Along the way he studied modern mudlump mollusk communities as his dissertation topic, demonstrating his understanding of modern ecology.
3) and to the northeast of the Magdalen Islands they reported on a deep "mudlump" [sic] suspected of being formed by gas migration from depth.
Along the way he studied modern mudlump mollusk communities, demonstrating his understanding of modern ecology.