Which term describes aggregates that are produced by natural weathering and have irregular shapes?

Which term describes aggregates that are produced by natural weathering and have irregular shapes?

• A. Irregular Aggregate
• B. Rounded Aggregate
• C. Angular Aggregate
• D. Flaky Aggregate

Answer: (A)

Irregular aggregate describes rock fragments that have uneven, non-uniform outlines resulting from natural weathering rather than mechanical crushing. Weathering leaves surfaces rough and edges jagged in a non-uniform way, so the shapes aren’t perfectly rounded or sharply angular. This sets them apart from rounded aggregates (smoothed by transport and water abrasion), angular aggregates (sharp-edged from crushing), or flaky aggregates (thin, plate-like pieces from certain rock types). The natural weathering origin is what makes their shapes irregular.

Irregular aggregate describes rock fragments that have uneven, non-uniform outlines resulting from natural weathering rather than mechanical crushing. Weathering leaves surfaces rough and edges jagged in a non-uniform way, so the shapes aren’t perfectly rounded or sharply angular. This sets them apart from rounded aggregates (smoothed by transport and water abrasion), angular aggregates (sharp-edged from crushing), or flaky aggregates (thin, plate-like pieces from certain rock types). The natural weathering origin is what makes their shapes irregular.