Pleiades Satellite Photo of Victoria Falls, Zambia and Zimbabwe
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Pleiades-1 Satellite Image (0.5m) – Victoria Falls is a waterfall in southern Africa on the Zambezi River at the border of Zambia and Zimbabwe.The recent geological history of Victoria Falls can be seen in the form of the gorges below the falls. The basalt plateau over which the Upper Zambezi flows has many large cracks filled with weaker sandstone. In the area of the current falls the largest cracks run roughly east to west (some run nearly north-east to south-west), with smaller north-south cracks connecting them.
Over at least 100,000 years, the falls have been receding upstream through the Batoka Gorges, eroding the sandstone-filled cracks to form the gorges. The river’s course in the current vicinity of the falls is north to south, so it opens up the large east-west cracks across its full width, then it cuts back through a short north-south crack to the next east-west one. The river has fallen in different eras into different chasms which now form a series of sharply zig-zagging gorges downstream from the falls.
Apart from some dry sections, the Second to Fifth and the Songwe Gorges each represents a past site of the falls at a time when they fell into one long straight chasm as they do now. forming the border between Zambia and Zimbabwe. It was described by the Kololo tribe living in the area in the 1800’s as ‘Mosi-oa-Tunya’ – ‘The Smoke that Thunders’. In more modern terms Victoria Falls is known as the greatest curtain of falling water in the world.
Columns of spray can be seen from miles away as, at the height of the rainy season, more than five hundred million cubic meters of water per minute plummet over the edge, over a width of nearly two kilometers, into a gorge over one hundred meters below. Read more about Victoria Falls.