I have set a back-and-forth animation on Sand Dune field migration in 1/3 of a century (#COVIDー19#Isolation fun).
Quite fast advance, nearly 1 km in only 32 years.
Where? Lençois Maranhenses, Northern Brazil.
Source: Google Earth #geology#Earth#dunes
I have set a back-and-forth animation on Sand Dune field migration in 1/3 of a century (#COVIDー19#Isolation fun).
Quite fast advance, nearly 1 km in only 32 years.
Where? Lençois Maranhenses, Northern Brazil.
Source: Google Earth #geology#Earth#dunes
The surface expression of Salt Domes can be quite astonishing. #Geology
These are from IRAN, east of the Kavir National Park.
Read more about Salt Domes at: https://t.co/bBeNQrKrwP
Amazing footage of a shallow submarine eruption. The base of the plume is locally dark due to ash and lapilli that quickly sediment out.
The thermal potential created the white steam plume buoyantly rising several kilometres.
Wishing all my followers a Merry Mud Volcano Christmas!
The chambers of mud underneath mud volcanoes are often referred to as having a 'Christmas tree' shape - and you can see why!
(Note: I've used a lot of license in this very poor & stylised interpretation!)
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Amazing records of sand dunes are preserved in #Arizona, USA. These dunes were active and moving more than 250 million years ago, and we can observe them now. #Geology allows us to #timetravel.