Which glacial outcome occurs when a bergschrund develops?

💡 Explanation

Crevasses widen near the bergschrund due to pressure release and subsequent frost fracture, facilitating cirque formation through nivation, because freeze-thaw cycles disintegrate rock. Therefore, the cirque enlarges, rather than terminus wastage driven by other warming or deposition away from glacier.

• Which ecosystem change results when pyroclastic flows deposit large amounts of ash?
• Which outcome occurs when coastal upwelling exceeds normal limits?
• Which outcome occurs regarding airflow in areas characterized by sharply contrasting surface temperatures?
• Which risk increases when rapid levee construction uses poorly compacted fill material on a floodplain lacking vegetation?
• Following subduction of the Juan de Fuca plate, which outcome characterizes deformation inland?
• Which outcome commonly results from increased pore pressure?