A parasequence is defined as a genetically related succession of bedsets that is bounded by marine flooding surfaces (or their correlative surfaces) on top and at the bottom.[1] The succession is supposed to be relatively conformable in the sense that breaks in deposition within the parasequence are much shorter than the time of deposition of the parasequence itself.[2][1] Most parasequences show a shallowing upward,[3] which is sometimes also included into the definition.[4]
Schematic graphic log showing facies successions in common types of clastic parasequencesSchematic graphic log showing facies successions in common types of carbonate parasequences
Propertiesedit
Since parasequences are relatively conformable, so Walther's law applies within a parasequence. This is not necessarily the case for transitions from one parasequence to another. They are also typically of the size of one up to tens of meters.[3]
Referencesedit
^ ab Van Wagoner, JC (1988). "An overview of the fundamentals of sequence stratigraphy and key definitions". Special Publications of SEPM. {{cite journal}}: Cite journal requires |journal= (help)
^ Patzkowsky, Mark E.; Holland, Steven M. (2012). Stratigraphic Paleobiology. Chicago: University of Chicago University Press. p. 34.
^ ab Patzkowsky, Mark E.; Holland, Steven M. (2012). Stratigraphic Paleobiology. Chicago: University of Chicago University Press. p. 35.
^ Catuneanu, Octavian (2011). "Sequence stratigraphy: methodology and nomenclature" (PDF). Newsletters on Stratigraphy. 44 (3). E. Schweizerbart'sche Verlagsbuchhandlung: 173–245. doi:10.1127/0078-0421/2011/0011.
January 01, 1970
parasequence, parasequence, fundamental, concept, sequence, stratigraphy, directly, related, sequences, definition, edita, parasequence, defined, genetically, related, succession, bedsets, that, bounded, marine, flooding, surfaces, their, correlative, surfaces. A parasequence is a fundamental concept of sequence stratigraphy Parasequences are not directly related to sequences Definition editA parasequence is defined as a genetically related succession of bedsets that is bounded by marine flooding surfaces or their correlative surfaces on top and at the bottom 1 The succession is supposed to be relatively conformable in the sense that breaks in deposition within the parasequence are much shorter than the time of deposition of the parasequence itself 2 1 Most parasequences show a shallowing upward 3 which is sometimes also included into the definition 4 nbsp Schematic graphic log showing facies successions in common types of clastic parasequences nbsp Schematic graphic log showing facies successions in common types of carbonate parasequencesProperties editSince parasequences are relatively conformable so Walther s law applies within a parasequence This is not necessarily the case for transitions from one parasequence to another They are also typically of the size of one up to tens of meters 3 References edit a b Van Wagoner JC 1988 An overview of the fundamentals of sequence stratigraphy and key definitions Special Publications of SEPM a href Template Cite journal html title Template Cite journal cite journal a Cite journal requires journal help Patzkowsky Mark E Holland Steven M 2012 Stratigraphic Paleobiology Chicago University of Chicago University Press p 34 a b Patzkowsky Mark E Holland Steven M 2012 Stratigraphic Paleobiology Chicago University of Chicago University Press p 35 Catuneanu Octavian 2011 Sequence stratigraphy methodology and nomenclature PDF Newsletters on Stratigraphy 44 3 E Schweizerbart sche Verlagsbuchhandlung 173 245 doi 10 1127 0078 0421 2011 0011 Retrieved from https en wikipedia org w index php title Parasequence amp oldid 1210718292, wikipedia, wiki, book, books, library,
