English Explanatory Dictionary

Norian

English dictionary entry

Meanings

adj
  1. Relating to the upper portion of the Laurentian rocks.
name
  1. An age from 216.5 ± 2.0 to 203.6 ± 1.5 532 to 523 million years ago, a subdivision of the Triassic.

Word forms

Norian the Norian

Etymology

From norite.

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