Final answer:
Spheroidal weathering is the term for the feature where corners and edges of a rock become rounded due to enhanced chemical weathering. Quartz's resistance and feldspar's transformation into clay during weathering and erosion contribute to sediment properties and landform shaping.
Step-by-step explanation:
Chemical weathering is more intense on the corners and edges of a block of rock due to the increased surface area exposed to weathering agents. This often results in the rock becoming rounded over time. The weathering feature where corners and edges of rocks become rounded due to increased weathering is known as spheroidal weathering.
Chemical and mechanical weathering break down rocks, leading to soil creation. In this process, quartz remains stable, signifying its high resistance to abrasion. Contrarily, feldspar alters to clay indicating proximity to the source and minimal transport time for sediment deposition. The continuous breaking down, transport, and re-deposition of rock materials through erosion and weathering shape the Earth's surface significantly, as seen in river valleys, cliffs, and caves.
Through erosion, high-grade metamorphic rocks can become exposed on the Earth's surface, as erosion removes overlying material, showcasing the impact erosion has on geological formations.