Assise

An assise (from the Fr., derived from Latin assidere, "to sit beside") is a geological term for two or more beds or strata of rock united by the occurrence of the same characteristic species or genera.^[1] In the hierarchy of stratigraphic units, an assise lies between a stage (or sub-stage) and a stratum.^[2]

References

^ One or more of the preceding sentences incorporates text from a publication now in the public domain: Chisholm, Hugh, ed. (1911). "Assise". Encyclopædia Britannica. Vol. 2 (11th ed.). Cambridge University Press. p. 782.
^ Miall, Andrew D. (2010). The Geology of Stratigraphic Sequences (2nd edition). Springer. pp. 16. ISBN 978-3-642-05026-8.

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[1] One or more of the preceding sentences incorporates text from a publication now in the public domain: Chisholm, Hugh, ed. (1911). "Assise". Encyclopædia Britannica. Vol. 2 (11th ed.). Cambridge University Press. p. 782.

[GeoStratSeq-2] Miall, Andrew D. (2010). The Geology of Stratigraphic Sequences (2nd edition). Springer. pp. 16. ISBN 978-3-642-05026-8.

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