GENERAL GEOLOGY

Detailed explanation-1: -Frost wedging is a form of physical weathering that involves the physical breaking of a rock. It typically occurs in areas with extremely cold conditions with sufficient rainfall. The repeated freezing and thawing of water found in the cracks of rocks (called joints) pushes the rock to the breaking point.

Detailed explanation-2: -Frost wedging is a form of physical weathering that breaks down rocks through the freezing and thawing process. First, water enters the rock through cracks and pores traveling deep within the rock. As the water freezes, it expands into the rock, causing the cracks and pores to grow.

Detailed explanation-3: -Frost wedging is a mechanical weathering process caused by the freeze-thaw action of water that is trapped between cracks in the rock. When water freezes, it expands and applies pressure to the surrounding rock forcing the rock to accommodate the expansion of the ice.

Detailed explanation-4: -There are two main types of physical weathering: Freeze-thaw occurs when water continually seeps into cracks, freezes and expands, eventually breaking the rock apart. Exfoliation occurs as cracks develop parallel to the land surface a consequence of the reduction in pressure during uplift and erosion.

Detailed explanation-5: -Abrasion weathering. Exfoliation weathering. Frost wedging. Salt crystallization. Thermal expansion. Biological activity/root wedging. 12-Oct-2021