different between jurassic vs oolitic

English

oolite +? -ic

oolitic (comparative more oolitic, superlative most oolitic)

(geology) Made up of, or containing oolites
- 1844, Charles Darwin, Volcanic Islands, Project Gutenberg transcription
  Masses of white, finely oolitic rock are attached to the outside of some of these coated pebbles.
(dated, 19th century) Of a prehistoric era; Jurassic.
- 1852, J.C. Fremont, The Exploring Expedition to the Rocky Mountains, Oregon and California, Project Gutenberg transcription
  These mines occur in the same ridge in which, about 120 miles to the northward, and subsequently in their more immediate neighborhood, we discovered the fossils belonging to the oolitic period

oolitic (plural oolitics)

From French oolithique

oolitic m or n (feminine singular oolitic?, masculine plural oolitici, feminine and neuter plural oolitice)

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