These feathers were indistinguishable in form from those found on birds from the same geological deposits.

He was particularly concerned with tertiary geological deposits and their paleontology.

When geological deposits of mud are formed in estuaries the resultant layers are termed bay muds.

Superficial deposits refer to geological deposits typically of Quaternary age.

The jail building's unusual composition reflects the richness of Vermont's geological deposits.

Atmospheric deposition, furthermore, accounts for only a part of the mercury loading, much of it coming from natural geological deposits.

They occur in a wide range of geological deposits, reaching back to the Carboniferous.

A mechanical excavator is used to dig down to archaeological features or natural geological deposits and any archaeology is recorded.

This model fits observations deduced from the amount of oxygen-18 (a radioactive isotope of oxygen) in geological deposits.

The houses are named after geological deposits in the local Dorset area and their names and colours are: