Questa foto di Okavango Delta è offerta da TripAdvisor.
The Delta must truly be one of Africa's most enchanted places: a swirl of lushness in a desert of Kalahari sand - a remarkable phenomenon.
Questa foto di Okavango Delta è offerta da TripAdvisor.
It owes its origins to the emergence of a rift valley across the course of the Okavango River.
When exactly this occurred is not certain but, geologically speaking, it is likely to have been a relatively recent event, possibly between two and four million years ago.
Questa foto di Okavango Delta è offerta da TripAdvisor.
Certainly, the process is ongoing, and constant movement in the earth's crust may well explain the shifts in water distribution that are so much a feature of this incredible area.
Questa foto di Okavango Delta è offerta da TripAdvisor.
In the aeons that have followed since the rift valley was formed, windblown sand and sediment delivered by the river have filled it, and its original bed now lies as much as 300 m. below the fanshaped Delta that we see today.
Questa foto di Okavango Delta è offerta da TripAdvisor.
An estimated 94 per cent of the water in the Okavango evaporates, 4 per cent goes into groundwater and 2 per cent flows into Thamalakane.
Questa foto di Okavango Delta è offerta da TripAdvisor.
http://magicnamibia.blogspot.com
http://magicbotswana.blogspot.com
http://magicsouthafrica.blogspot.com
http://magicmadagascar.blogspot.com
http://magiadinamibia.blogspot.com
No comments:
Post a Comment