Where is the thickness of the earth’s crust most significant?

The Earth’s crust, on average, has a thickness of 35-50 kilometers. The crust of our planet differs in thickness on the continents and under the oceans. The oceanic crust is the thinnest; its thickness can vary from 5 km to 30 km. The continental crust is over 35 kilometers thick. The greatest thickness of the earth’s crust is located under the mountain ranges, where numbers can reach up to 80 km or even more. The continental crust is more powerful than the oceanic one because it consists of 3 layers: basalt, granite and sedimentary. In the oceanic crust, there is no granite layer.