Territory Stories

Land units of the Fish River-Oolloo area, N.T.



Land units of the Fish River-Oolloo area, N.T.


Aldrick, J. M.; Conservation Commission of the Northern Territory. Land Conservation Unit


E-Publications; PublicationNT; E-Books; Technical report, 8/1984




Fish River, Tipperary; Oolloo


Made available via the Publications (Legal Deposit) Act 2004 (NT).


Date:1984; Bibliography: p. 87. "Prepared by the Natural Resources, Land Development, and Environment and Heritage Divisions. Darwin, August 1999 -- t.p.




Soils -- Northern Territory

Publisher name

Land Conservation Unit, Conservation Commission of the Northern Territory

Place of publication

Winnellie (N.T.)


Technical report, 8/1984


x, 104 pages : illustration, maps ; 30 cm.

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Technical Report LRD84008 Viewed at 07:02:01 on 18/02/2010 Page 34 of 107. During this survey, these soils were found in many different topograhic positions. There was no obvious correlation with slope or position on the slope, which opens the possibility that they are sedentary on a particular parent material type. From field observations, they are much more common on the Tindall Limestone. Further research is needed, but these soils may inherit a clay type that is particularly conducive to illuviation. As illuviation proceeds, a critical permeability may be reached beyond which soil drainage begins to deteriorate. Progressive drainage impairment could then produce a virtual continuum of soils from the Tippera series 3 end of the range to Florina Family soils. This process could occur throughout the normal range of slopes and topographic positions on which Red Earths commonly occur, and would be consistent with field obser vations. The Tippera series 3 soils are included in land unit 3d, and the Florina Family soils are in land unit Se. 4.3 Soil Chemistry Twenty-four profiles have been analysed and the results are given 1n Tables 10.2.1 and 10.2.2 of Appendix 10.2. As expected, there is a degree of similarity in many profile characteristics, regardless of soil classification. Some differences between the soil Families are apparent, and these are discussed below. Terms used to indicate the adequacy or otherwise of the various elements are as currently used in the Land Conservation Unit (K. Day, pers. comm.). 4.3.1 Soil pH and Conductivity: The Cracking Clays and the Rendzina (Phillips Family) had high pH in the lower parts of their profiles, and an increase in conductivity. None was saline. 25

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