In this sense, the Earth's crust differs in modern folding, ancient massive It is sedimentary basins.
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Modern Folds: are the geologically most recent formation structures on the Earth's surface. It is a set of areas formed by the meeting between two tectonic plates convergent, resulting in the uplift of the relief from orogenetic processes.
Thus, we have the formation of the great mountain ranges of the planet, such as the Andes Mountain Range (in western South America) and the Himalaya Mountain Range (in southern Asia).
Ancient Solids: also called crystalline shields, are the oldest structures on Earth's relief, originating in the Precambrian. Its structural composition is crystalline rocks, that is, a combination of igneous and metamorphic rocks.
most of the brazilian relief it is made up of ancient massifs, where it is possible to find a large amount of metallic minerals, such as copper, gold, aluminum and many others.
Sedimentary basins: are structures of relief formed from the Paleozoic Era. Its composition, as its name implies, is of sedimentary rocks, which are formed from the accumulation of sediments from the decomposition of other pre-existing rocks.
With the accumulation of several layers of this material over time, the increase in pressure and temperature causes the sediments to transform into rocks, in a process called diagenesis. In this process, the accumulation of organic material and remains of living beings is also common, which give rise to fossils and also energy minerals, such as oil, mineral coal and natural gas.