The amber was known to come from sediments dated at 80 million years.
Something is the process of separating a liquid from sediment by pouring.
The land is formed from sediment at the mouth of the Guadalquivir river.
But snow and ice accumulate in a totally different way from sediment.
Now, however, evidence has been found that, in one class of diamonds, the carbon came from sediment within the earth's crust.
A few strains have been also reported from deep-sea sediments.
No fossils are known from sediments deposited by this sea.
Three formations developed from sediment that accumulated on the wedge.
Hence, it is unlikely to have formed from sediments washed off the part of the island above sea level.
The island has been built from sediments from the lagoon.