Definition of Cretaceous formation. Meaning of Cretaceous formation. Synonyms of Cretaceous formation
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Definition of Cretaceous formation
Cretaceous formation Cretaceous Cre*ta"ceous (kr[-e]*t[=a]"sh[u^]s), a. [L.
cretaceus, fr. creta chalk. See Crayon.]
Having the qualities of chalk; abounding with chalk; chalky;
as, cretaceous rocks and formations. See Chalk.
Cretaceous acid, an old name for carbonic acid.
Cretaceous formation (Geol.), the series of strata of
various kinds, including beds of chalk, green sand, etc.,
formed in the Cretaceous period; -- called also the chalk
formation. See the Diagram under Geology.
Cretaceous period (Geol.), the time in the latter part of
the Mesozoic age during which the Cretaceous formation was
deposited.
