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Salma caldera

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The Salma caldera is a late Proterozoic caldera complex in the northeastern Arabian Shield of Saudi Arabia. It encompasses rhyolitic volcanic rocks, a peralkaline ring intrusion that rose along a fracture formed during caldera collapse, and a younger resurgent metaluminous and peraluminous granite core.[1]

References

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  1. ^ "The Salma Caldera complex, northeastern Arabian Shield, Kingdom of Saudi Arabia" (PDF). Retrieved 28 June 2022.

Public Domain This article incorporates public domain material from websites or documents of the United States Geological Survey.