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What is Continental Magmatism and Flood Basalts about?
Continental magmatism is usually associated with continental rifting or occurs in stable cratonic areas. Magma types include tholeiites, alkali basalts, and more silica-undersaturated rocks like basanites and nephelinites. In rift settings, early magmatism consists of alkaline volcanic rocks like nephelinites and carbonatites. Later magmatism produces quartz tholeiites and alkali basalts further from mantle plumes. Kimberlites in cratons represent small-degree melts of the carbonatite-bearing mantle and bec
- Author
- Anonymous t6monmnJnN
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- EN