Which erosional outcome occurs when thick tephra deposits accumulate?

💡 Explanation

Lahars can occur because high volumes of tephra saturate with water during rain events, resulting in debris flows; this mudflow is called a lahar. Therefore lahars become hazardous, rather than ventifact formation which occurs due to long-term wind abrasion.

• Which risk increases when a building constructed on permafrost causes thawing of ground ice at the foundation?
• Which outcome accelerates when thawing permafrost exposes previously frozen organic matter to aerobic conditions?
• Which risk is heightened when coastal upwelling is abnormally reduced due to persistent high atmospheric pressure?
• Which geologic outcome intensifies when an oceanic plate subducts at a steeper angle beneath a continental plate?
• Which mechanism causes increased coastal upwelling during strong offshore wind events?
• Which geological process commonly generates strike-slip faults in Earth's crust?