Diastem
In
strata accumulation was at the rate of thousands of years per foot rather than hundreds. He stated that diastems are universal in sedimentary rocks
and explained them as a product of fluctuation of base level.
Definition
The International Commission on Stratigraphy defines a diastem as "[a] short interruption in deposition with little or no erosion before resumption of sedimentation".[3]
Duration
Studies indicate that the time gap represented in diastems ranges from a few hundred to a few thousand years in shelf settings as well as throughout the Paleozoic.[4][non sequitur]
References
- ^ Catuneanu, Octavian (2006). Principles of sequence stratigraphy. Amsterdam: Elsevier.
- ^ Kowalewsky, Michal; Bambach, Richard K. (2003). Harries, Peter J. (ed.). High-resolution approaches in stratigraphic paleontology. Springer Science & Business Media. p. 24.
- ^ "Unconformity-bounded Units". International Commission on Stratigraphy. Retrieved 12 May 2018.
- ^ Kowalewsky, Michal; Bambach, Richard K. (2003). Harries, Peter J. (ed.). High-resolution approaches in stratigraphic paleontology. Springer Science & Business Media. p. 34.
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