Territory Stories

Groundwater studies Ti-Tree Basin 1984-1988



Groundwater studies Ti-Tree Basin 1984-1988

Other title

Peter McDonald


McDonald, Peter


E-Publications; E-Books; PublicationNT; Power and Water Authority Report ; no. 1/1990




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






Groundwater -- Northern Territory -- Ti-Tree Region

Publisher name

Water Resources Branch, Power and Water Authority

Place of publication

Alice Springs


Power and Water Authority Report ; no. 1/1990


1 v. : ills., maps ; 30 cm.

File type


Copyright owner

Check within Publication or with content Publisher.

Parent handle


Citation address


Page content

-62- significant infiltration. The creek flows in an easterly direction initially, then runs north through Allungra Waterhole (Figure 13) to flood out on reaching the sandy plain which is the surface expression of the Ti-Tree Basin. Reference to Figure 12 shows the floodout diverging north of Allungra Waterhole; the alluvial deposit associated with the eastern fork runs northwards for some 25km (Plate 10). Airphoto study shows evidence of this watercourse continuing northwards to the edge of the basin north of the Pine Hill - Atartinga boundary. Figure 12 also shows the western fork (ie alluvium) flowing northwards and diverging approximately 5km north of Allungra Waterhole. Again, airphoto study suggests that flow past the northerly extremity of the alluvium as shown at Figure 12 occurs, continuing in a northerly direction. Surface contours for the area are shown at Figure 23. These have been prepared from Department of National Mapping 1:100 000 photogrammetry, modified where appropriate here by incorporation of levelling data at water bores. From airphoto and contour examination, it is postulated that minor flows in Allungra Creek remain confined to the defined channel of the creek, anr3 follow the eastern fork north of Allungra Waterhole until dissipating towards the north. These flows would provide only minor infiltration, which would be drawn upon by native vegetation, particularly deep-':ootecl eucalypts which line the creek in resonse to fiequent but small flow events. Transpiration, by concentration of dissolved solids in infiltrated waters, would here facilitate

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