Brazilian Highland is also know as Brazilian shield give reasons.
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because Brazilian highland rise to the north and lower Brazilian highlands to the south . the braz highlands are composed of ancient crystalline rocks,which in the vicinity of sao paulo
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Shield is a generic term that is given for an area that remains exposed to the Precambrian crystalline forms of igneous and metapmorphic rocks.
The Brazilian shields were formed after years of rock formation due to the tectonic movements of the earth and due to the lava oozing out due to volcanic eruption.
It is a type of continental crust, and not a flat shield and it is found in the eastern, slightly bulging portion of South America.
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