Weathering Processes
Weathering involves the breakdown and alteration of rock in situ through physical, chemical, and biological processes. In coastal environments, salt crystallization, freeze-thaw, and chemical weathering are particularly important.
Real World
Salt crystallisation weathering is visibly breaking apart the limestone cliffs at The Burren on Ireland's Atlantic coast, where repeated wetting by sea spray and drying creates honeycomb weathering patterns called tafoni.
Exam Focus
Distinguish weathering (in situ breakdown) from erosion (removal by an agent) — confusing them loses easy marks.
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