Show Summary Details

Quick Reference

Porous, fine-grained rock, predominantly composed of the calcareous skeletons of micro-organisms, e.g. coccolithophores and foraminifera. The Chalk Formations of the Upper Cretaceous of Europe form the White Cliffs of Dover and the cliffs south of Calais.

Subjects: Science and Mathematics.

Reference entries

See all related reference entries in Oxford Index »

Users without a subscription are not able to see the full content. Please, subscribe or login to access all content.