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      •   Research Commons
      • University of Waikato Research
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      • Waikato Geological Society Earth Science Journal
      • Volume 4, Number 2, 1970
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      •   Research Commons
      • University of Waikato Research
      • Science and Engineering
      • Waikato Geological Society Earth Science Journal
      • Volume 4, Number 2, 1970
      • View Item
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      The Sydney duricrusts: their terminology and nomenclature

      Faniran, Adetoye
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      Faniran, A. (1970). The Sydney duricrusts: their terminology and nomenclature. Earth Science Journal, 4(2), 117-128.
      Permanent Research Commons link: https://hdl.handle.net/10289/9170
      Abstract
      Two main duricrust types - laterites and ferricretes - and their underlying materials are mapped and described for the northern parts of the Sydney district, New South Wales. Laterites are by far the more widespread, being found both in the Wainamatta-Shales and in the Hawkesbury-Sandstone areas, particularly on the broad hilltops and interfiuves of the major divide between the three drainage systems - the north-flowing Hawkesbury-Broken Bay, the south-flowing Parramatta-Port Jackson and the east-flowing Pacific Ocean systems. The ferricretes occur mainly in the drier parts of the northwest, especially in the conglomeratic river gravels of the Maroota area. The two materials have similar profile characteristics but they are different in hand specimen, in textural and structural characteristics, and also in mineralogical composition. The duricrusts and their profiles have been widely destroyed and differentially truncated, so that their various zones and subzones are presently exposed at different places. These materials, especially in respect of laterites, are classified from field and laboratory evidence, according to their recognised, or assigned, position in the typical deep weathering profile. Names are assigned, depending on the area where the best examples were found.
      Date
      1970
      Type
      Journal Article
      Series
      Earth Science Journal
      Publisher
      Waikato Geological Society, The University of Waikato
      Rights
      © 1970 Waikato Geological Society, The University of Waikato. All items in Research Commons are provided only to permit fair dealing for the purposes of research or private study. They are protected by copyright with all rights reserved unless otherwise indicated.
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      • Volume 4, Number 2, 1970 [8]
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