Which outcome relating to tectonic activity follows increased stream sediment load from eroding mountains bordering subduction zones?

💡 Explanation

Increased erosion causes greater sediment deposition on the subducting plate leading to increased pore water pressure. The increased pore water pressure decreases the melting point via flux melting, because lowered melting temperatures allows crustal melts, and melts can propagate rather than being stabilized by a thermal gradient.

• Which outcome occurs when rapid water injection into a fracture zone within a geothermal reservoir triggers numerous small earthquakes?
• Which pedogenic effect on soil formation occurs predominantly due to freeze-thaw weathering?
• Which consequence results when a barrier island's overwash threshold is exceeded?
• Which process causes seismic amplification when shear waves encounter a sedimentary basin bounded by a fault?
• Which formation process dominates when wave-cut platforms erode isolated headlands?
• Which mechanical process causes frequent shallow earthquakes along a transform plate boundary?