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在南美洲巴西境内,有块面积占巴西国土一半以上的大高原,叫巴西高原。巴西高原的面积有500多万平方公里,除了南极洲的冰雪大高原,它是世界上最大的高原。位于南美洲中东部,介于亚马孙平原和拉普拉塔平原之间,面积约500万平方千米。海拔300～1500米,地面起伏平缓,向西、北倾斜。花岗岩、片麻岩、片岩、千枚岩、石英岩等古老基底岩系出露地表。其中东部岩性坚硬的石英岩、片
In South America, Brazil has a large plateau that accounts for more than half of Brazil’s land, called the plateau of Brazil. The Brazilian Plateau covers an area of more than 5 million square kilometers and is the largest plateau in the world except Antarctica’s plateau of ice and snow. Located in the central and eastern South America, between the Amazon Plain and La Plata plain, an area of about 5 million square kilometers. 300 ~ 1500 meters above sea level, gently rolling ground, west, north tilt. The granite, gneiss, schist, phyllite, quartzite and other ancient basement rocks exposed surface. One of the eastern lithology hard quartzite, film