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Stratigraphy vs. pedogenesis; problems of their correlation within coastal sedimentary facies

Journal Article


Abstract


  • Stratigraphic differentiation of Wuaternary coastal sedimentary sequences is frequently based upon the recognition of individual palaeosols. A number of assumptions are commonly made in the compilation of such lithostratigraphies; first, that the development of soil profiles (spodosols) within coastal sedimentary sequences occur within stable sedimentary units and second, that one soil profile equals one sedimentary unit. After examining and thermoluminescence dating podzol (spodosol) profiles within 11 barrier and dune complexes along a 900 km stretch of coastline in south-east Australia we can now show that such assumptions are not tenable. At eight of the ten locations examined the A and B horizons of these soils, although having the appearance of being intact and genetically related, revealed great discrepancies in age. We suggest that coastal podzol profiles are particularly susceptible to reworking primarily because of the variability in induration, and hence preservation potential, of successive horizons. Recognition of this situation as probably being the norm rather than a local anomaly suggests that the practice of dividing sedimentary units into lithostratigraphic units on the basis of palaeosols and then using this criteria as a basis for sampling and determining chronostratigraphies may well lead to erroneous interpretations especially when reconstructing Quaternary environmental and geological histories. © 1994.

UOW Authors


  •   Price, David (external author)

Publication Date


  • 1994

Published In


Citation


  • Nott, J., Young, R., Bryant, E., & Price, D. (1994). Stratigraphy vs. pedogenesis; problems of their correlation within coastal sedimentary facies. Catena, 23(3-4), 199-212. doi:10.1016/0341-8162(94)90068-X

Scopus Eid


  • 2-s2.0-0000906694

Web Of Science Accession Number


Start Page


  • 199

End Page


  • 212

Volume


  • 23

Issue


  • 3-4

Abstract


  • Stratigraphic differentiation of Wuaternary coastal sedimentary sequences is frequently based upon the recognition of individual palaeosols. A number of assumptions are commonly made in the compilation of such lithostratigraphies; first, that the development of soil profiles (spodosols) within coastal sedimentary sequences occur within stable sedimentary units and second, that one soil profile equals one sedimentary unit. After examining and thermoluminescence dating podzol (spodosol) profiles within 11 barrier and dune complexes along a 900 km stretch of coastline in south-east Australia we can now show that such assumptions are not tenable. At eight of the ten locations examined the A and B horizons of these soils, although having the appearance of being intact and genetically related, revealed great discrepancies in age. We suggest that coastal podzol profiles are particularly susceptible to reworking primarily because of the variability in induration, and hence preservation potential, of successive horizons. Recognition of this situation as probably being the norm rather than a local anomaly suggests that the practice of dividing sedimentary units into lithostratigraphic units on the basis of palaeosols and then using this criteria as a basis for sampling and determining chronostratigraphies may well lead to erroneous interpretations especially when reconstructing Quaternary environmental and geological histories. © 1994.

UOW Authors


  •   Price, David (external author)

Publication Date


  • 1994

Published In


Citation


  • Nott, J., Young, R., Bryant, E., & Price, D. (1994). Stratigraphy vs. pedogenesis; problems of their correlation within coastal sedimentary facies. Catena, 23(3-4), 199-212. doi:10.1016/0341-8162(94)90068-X

Scopus Eid


  • 2-s2.0-0000906694

Web Of Science Accession Number


Start Page


  • 199

End Page


  • 212

Volume


  • 23

Issue


  • 3-4