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Laterite and bauxite deposits
These deposits can be observed in those tropical areas that are characterized by seasonal rainfalls, such as some large areas in Asia, Africa, Brazil and Cuba. They form as a consequence of high temperatures and the high quantity of bacteria that completely decompose the soil organic material. As a consequence, the soil does not contain acid substances and rainwater does not manage to remove iron and aluminium oxides and hydroxides. In these cases the iron deposits and the soil is covered by a thick red laterite crust. Instead, if the soil does not contain a lot of iron but contains lots of aluminium hydroxides, bauxite white deposits are formed.
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Laterite and bauxite deposits
These deposits can be observed in those tropical areas that are characterized by...
These deposits can be observed in those tropical areas that are characterized by...
And in underground tunnels?
There are groups of terrestrial animals that eat insects, worms and other invertebrates...
There are groups of terrestrial animals that eat insects, worms and other invertebrates...
What about the permafrost?
In Sub Arctic Swedish regions, some scientists studied the changes of permafrost...
In Sub Arctic Swedish regions, some scientists studied the changes of permafrost...
Volcanic eruptions
The activity of some volcanoes is characterized by violent explosions...
The activity of some volcanoes is characterized by violent explosions...
Volcanic activity of Vesuvio
One of the most famous volcanic disasters was the eruption of Vesuvio in 79 A.D....
One of the most famous volcanic disasters was the eruption of Vesuvio in 79 A.D....
