Haven Sandy Loam
Map Symbol: Hasl
Geology: Late Tertiary to Quaternary.
Landform: Dune foot slope and relatively level inter-dune corridor positions and relatively level areas on the sand plain landscape unit.
Occurrence: Haven sandy loam occurs as a dominant soil mapping unit in the sand plain landscape unit and as sub-dominant in the flood plain, river frontage and dune and swale unit. In the latter landscape unit, Haven sandy loam usually occurs in the swale component. Where it is mapped as a shallow phase the surface soil depth is usually between 5 and 10 cm. Sub-surface (A2) horizons may be absent in some areas.
Representative Soil Type: Site IS30
Vegetation: A tall woodland formation characterised by Grey Box (E. microcarpa), Buloke (C. luehmannii) and Yellow Gum (E. leucoxylon) may have been dominant on areas of this soil unit.
Generalised Soil Type:
Surface Soil
| A1 | 0 - 5/20 cm | Brown (7.5YR4/4), dark brown (10YR3/3) or dark greyish brown (10YR4/2) sandy loam or loamy sand; hardsetting or loose surface condition; weak medium or coarse granular or blocky structure; sharp change to: |
| A2 | 5/20 - 15/35 cm | Strong brown (7.5YR5/6), brown (7.5YR4/4) or brownish yellow (10YR6/6), sporadically or conspicuously bleached (10YR7/4d, 10YR8/1d) sandy loam or sandy clay (occasionally medium or heavy clay); may form a cemented capping; sharp or gradual change to: |
| B21 | 15/35 - 55/90 cm | Yellowish red (5YR5/6), light brown (7.5YR6/5), light brownish grey (2.5Y6/2), strong brown (7.5YR5/6) or brownish yellow (10YR6/6), occasionally with reddish brown (2.5YR4/4) or pale brown (10YR6/3) mottled medium or heavy clay (occasionally sandy clay); plastic; coarse columnar, prismatic or weak medium blocky structure; strong consistence dry, sticky consistence wet; usually contains a trace (< 2%) amount of hard carbonate; gradual or clear change to: |
| B22 | 55/90- 120/140 cm | Yellowish brown (10YR5/4), light brownish grey (2.5YR6/2), brownish yellow (10YR6/6) or yellow (10YR7/6) with pale yellow (5Y7/3), yellowish red (5YR5/6) or red (2.5YR4/8) mottled light to heavy clay or sandy clay; plastic; weak medium to coarse blocky structure; strong consistence dry, sticky consistence wet; contains a trace (< 2%) amount of hard carbonate and a slight (2-10%) amount of soft carbonate |
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