What is the difference between tephra and pyroclastic flow?
What is the difference between tephra and pyroclastic flow? Individual eruptive fragments are called pyroclasts (“fire fragments”). Tephra (Greek, for ash) is a generic term for any airborne pyroclastic accumulation. Whereas tephra is unconsolidated, a pyroclastic rock is produced from the consolidation of pyroclastic accumulations into a coherent rock type. What is the difference between […]