Australia – The Land Down Under. http://www.garma.telstra.com/media.htm. History. Lake Mungo- age of Mungo Man. between 30,000 years & 60,000. . Before the arrival of European settlers, Aboriginal and Torres Strait Islander peoples inhabited most areas of the Australian continent.
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Lake Mungo- age of Mungo Man. between 30,000 years & 60,000.
Port Arthur, Tasmania was Australia's largest penal colony
A poster entitled 'Advance Australia' produced in 1901
Percentage run off for each Basin
Drainage basins in the central Australian mountain ranges, have rapid response times and floods may rise quickly, blocking roads in Alice Springs. This image shows a flood on the Todd River at the Heavitree Gap Causeway.
Source: http://www.affa.gov.au/content/output.cfm?ObjectID=F9AB31F2-E3AB-4CC1-B5D07FDE0A82E197 & http://humanities.cqu.edu.au/geography/GEOG11023/week_8.htm
FERROSOLS: Soils with B2 horizons which are high in free iron oxide, and which lack strong texture contrast between A and B horizons.
The B2 horizon has structure more developed than weak and a fine earth fraction which has a free iron oxide content greater than 5% (as opposed to a Dermosol).
Some Tasmanian soils, particularly the ferrosols (the red soils of the north-west and north-east) are of world class quality because of their free drainage and good structure, but they can be easily degraded.
This soil profile is an example of a soil with a gradational profile (clay content increasing gradually down the profile).
Source: Richard Doyle
Source: Soil Orders-Australia = http://www.dpi.vic.gov.au/dpi/vro/vrosite.nsf/pages/gloss_DG
Red Dermosols occur on a range of landscapes in the North East region of Victoria - from lower river terraces to mountainous areas.
Exotic Pine Trees at the Redoxic Hydrosol Site
Surface (A) horizons:loam or sandy loam texture; 15-20 cm thick; shallow hardsetting A1
overlying bleached A2 horizon; clear to abrupt change to:Subsoil (B2) horizon:clay texture; well developed fine subangular blocky peds; strongly acid