Belts and Basins of North Carolina

Blue Ridge Belt- This belt consists of igneous, metamorphic, and sedimentary rocks one billion to almost one half million years old. This rocks over time have been mangled and twisted into folds. The Blue Ridge Mountains have large cpmposites of feldspar, mica, and quartz. Those basic materials can be used for many different industries.

Inner Piedmont Belt-This belt is the most deforemed part of the Piedmont. These rocks are not nearly as old as the one’s from Blue Ridge only ranging from 500 million to 750 million years old. Young granitic rock have intruded gneiss and schist. Brevard fault zone forms a distinct boundary between the Blue Ridge and the Piedmont. Crushed Stone is the most useful material coming from the Inner Piedmont.

Kings Moutain Belt- This belt contains deformed metamorphic and sedimentary volcanic rock. The rock from this belt are only 400 to 500 million years old. Lithium composites are an extremely useful material streaming from the Kings Mountain Belt. Lithium can be used for many things including chemical compounds, ceramics, glass, greases, batteries, and television glasses.

Milton Belt- The Milton belt is not very large and contains gneiss,schist, and metamorphic intrusive rocks.

Charlotte Belt- This belt contains almost just igneous rocks. Some of the igneous rocks are granite, diorite, and Gabbro. The rocks range from 300 to 500 million years old.

Carolina Slate Basin- The basin contains volcanic sedimentary rocks. 550 to 650 million years ago in place of the basin rested an oceanic volcanic island. The location also contains many old abandoned gold mines. But since the California gold rush limited mining has taken place.

The Triassic Basin- The basin contains sedimentary rocks just 190 to 200 million years old. The rocks were formed from streaming mud, silt, sand, and gravel that came from the highlands.

Eastern Slate Belt- This area contains rock very similar to those of the Carolina Slate belt, most are volcanic metamorphic and sedimentary rocks. Metamorphic rocks at this location are 500-600 million years old, and the intruder rocks are about 300 million years old. Gold was once in existence in large quantities here.

Atlantic Coastal Plain- The plain contains  marine sedimentary rocks. This plain is actually the largest belt in North Caolina. Fourty five perecent of North Carolina contains this belt. Phosphate is heavily mined at the Atlantic Coastal Plain and phosphate is North Carolina’s most profitable mineral. There are also large composites of limestone found in some parts of the plain.

Bonus Information- Granite is North Carolina’s state rock. Mount Airy, North Carolina contains the largest granite quarry in the world, measuring one mile long and 1,800 feet in width.




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