Sentences with phrase «including volcanic deposits»

The geology of Belize can be divided broadly into the Northern Lowlands, the Maya Mountains, the Toledo Beds and the Pliestocene deposits, but there are other features including volcanic deposits of bentonite in the north and volcanic outcrops along the southern boundary of the Maya Mountains.

Not exact matches

A younger volcanic deposit lying in the rock above these fossils includes zircons, tiny bits of silicate mineral that often contain trace amounts of uranium.

Numerous indicators of volcanic activity at the P - T boundary are present, though they are similar to bolide impact indicators, including iridium deposits.