Sequence (geology)

In geology, a '''sequence''' is a stratigraphic unit which is bounded by an unconformity at the top and at the bottom.<ref name="catuneanu183"/>

== Definition == In a more rigorous and general way, a sequence is defined as a

"relatively conformable [...], genetically related succession of strata bounded by unconformities or their correlative surfaces"<ref name="patzkowskyholland220" />

== Special cases and related concepts == Special cases of sequences include type 1 sequences and type 2 sequences.<ref name="patzkowskyholland42" /> A related concept are parasequences. Contrary to their name they are not smaller sequences.

== See also == * Catena (soil) * Sequence stratigraphy

== References == <references> <ref name="catuneanu183"> {{Cite journal|last=Catuneanu|first=Octavian|date=2011|title=Sequence stratigraphy: methodology and nomenclature|language=en|publisher=E. Schweizerbart'sche Verlagsbuchhandlung|journal=Newsletters on Stratigraphy|volume=44|number=3|pages=183|doi=10.1127/0078-0421/2011/0011 |url=http://doc.rero.ch/record/28034/files/str_ssm.pdf }}</ref> <ref name="patzkowskyholland220" > {{cite book |last1=Patzkowsky |first1= Mark E. |first2=Steven M. |last2=Holland|year= 2012|title=Stratigraphic Paleobiology |location=Chicago |publisher=University of Chicago University Press|pages=220}} </ref> <ref name="patzkowskyholland42" > {{cite book |last1=Patzkowsky |first1= Mark E. |first2=Steven M. |last2=Holland|year= 2012|title=Stratigraphic Paleobiology |location=Chicago |publisher=University of Chicago University Press|pages=42–43}} </ref> </references>

Category:Sequence stratigraphy