Overlying the earlier mudstone and claystone layers is a layer of limestone deposited with noticeable rippling, an effect of wave motion on very shallow sediment.
This term is specifically applied to shallow marine sediment, that contains noticeable quantities of rounded greenish grains.
They lived in swampy habitats like shallow wetlands, coastal lagoons, brackish river deltas, and even shallow marine sediments.
It consists of shallow marine sediments, usually Jurassic nodular limestones and Cretaceous so called couches rouges marlstones.
What's more, glacial sediments of the Portaskaig formation in Scotland clearly show interbedded cycles of glacial and shallow marine sediments.
Evidence for such melting comes from evidence of glacial dropstones, geochemical evidence of climate cyclicity, and interbedded glacial and shallow marine sediments.
Phosphorus is often found in high concentration in soft shallow sediments.
The presence of shallow marine sediments of Late Cretaceous age indicate that the region was below sea level at this time and it apparently did not emerge until the Early Cenozoic.
Biogenic gas is created by methanogenic organisms in marshes, bogs, landfills, and shallow sediments.
Usually, the 1 psi/ft is not applicable for shallow marine sediments or massive salt.