Scientists now believe that Home Plate is an explosive volcanic deposit.

Interbeded between these layers were volcanic deposits, probably from an island arc.

We were soon in open country, if we could give such a name to a place all covered with volcanic deposits.

Such volcanic deposits are not found in the Fluminense lowland.

A charcoal fragment found in a volcanic deposit was dated at approximately 6515 years before present.

April 1988 (approximately): volcanic deposit begins forming a mound in the bottom of the Pitt.

Some geologists believe it does continue south, with all traces covered by more recent volcanic deposits.

The island is surrounded by very steep rugged cliffs of layered volcanic deposits.

These volcanic deposits get mixed up with the sediment from the continent (now in the form of a back arc basin).

The volcanic deposits that were created during the Great Dying.