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Tonalite and Chalk Reserves


Chalk and Tonalite Reserves


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Reserves of Tonalite and Chalk

The reserves of Tonalite and Chalk are geographically distributed all over the world. Tonalite and Chalk reserves play an important role in a country’s economic growth. Rocks are deposited according to the topography of the area. Some oldest rocks can be found in the Canadian Shield, Australia, Africa and in a few other old regions around the world. The ages of these felsic rocks are around 2.5 and 3.8 billion years. Learn about the countries with Tonalite and Chalk reserves here.

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