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Lake George - an Aerial View.

  Рет қаралды 37

On The Road Australia

On The Road Australia

Күн бұрын

Lake George is an endorheic lake, as it has no outflow of water to rivers and oceans.
The lake is believed to be more than a million years old. Originally, small streams drained its catchment into the Yass River, but then the Lake George Escarpment rose due to major crust movement along a strong fault line, blocking this drainage and forming the lake. Lake George has in previous Ice Ages been much larger and deeper.
The thickness of sediment beneath the lake exceeds 250 metres (820 ft), according to a Bureau of Mineral Resources Canberra drilling programme in the 1982/83 summer. The oldest sediments, which lie some distance above the bedrock, were dated at 4-5 million years using spore and pollen analysis and magnetic-reversal stratigraphy.
At 25 km (16 mi) long and 10 km (6.2 mi) wide, Lake George is long, largely flat and extremely shallow, with a very small catchment. Resultant evaporation rates as well as a tendency for strong winds to blow the water back on itself explain the mysterious filling and drying episodes on both short term (hours) and long term (years) time scales that have been observed.
The lake's depth when full can range from 1.5-4.5 metres (4 ft 11 in - 14 ft 9 in); however, in many areas it is only around 0.8-1.0 metre (2 ft 7 in - 3 ft 3 in) deep. Its deepest point has been measured as 7.5 metres (25 ft). When full, the lake holds about 500,000,000 cubic metres (1.8×1010 cu ft) of water. Between the late 1980s and mid-1990s, the lake lapped the Federal Highway on its western edge.
Lake George is one of the most studied lakes in Australia. The palaeontologist Patrick De Deckker has commented that "it is actually a depression that turns into a lake when it fills. There’s always water below the lake floor, and amazingly, it is saline, but if you have more rainfall, the lake fills up".
A Travelling and variety Channel

Пікірлер: 4
@kimfitzgeraldrockfam8973
@kimfitzgeraldrockfam8973 2 ай бұрын
so beautiful to see the reflection of the sky in the water
@ontheroadaustralia-soleman1911
@ontheroadaustralia-soleman1911 2 ай бұрын
Yes it’s always like that, it only full around every 20 years.
@josefantasticville
@josefantasticville 2 ай бұрын
Very nice views. Slightly cloudy made the scenes awesome
@ontheroadaustralia-soleman1911
@ontheroadaustralia-soleman1911 2 ай бұрын
Thanks
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