Huge saltmarsh areas are covered by thick detrital mats

Huge saltmarsh areas are covered by thick detrital mats

Huge saltmarsh areas are covered by thick detrital mats derived from the cordgrass Spartina alterniflora after senescence and storms.

Photo courtesy of: 
M. Mews
From: 
Digging in the dirt: trans-Atlantic studies on across-boundary systems