What are Examples of Physical Weathering?

By Ritesh|Updated : October 6th, 2022

Examples of physical weathering are - a sizable granite exfoliation dome, formation of tors, frost weathering, and heaving up gypsum and sodium chloride crystals. A few instances of physical weathering:

  • A sizable granite exfoliation dome close to the Andhra Pradesh town of Bhongir (Bhuvanagiri).
  • Exfoliation causes small to large boulders with smooth surfaces and rounded corners, known as tors, to form in rocks like granite.
  • After repeated cycles of freezing and melting, ice forms in the pores and fractures of rocks, causing frost weathering.
  • In desert regions, sodium chloride and gypsum crystals heave up the top layers of materials, causing polygonal fissures to appear all over the surface.

Examples of Physical Weathering Processes

To understand the examples, you need to understand the Physical Weathering Process First. The following instances show physical weathering:

Rapidly flowing water

  • Swiftly rushing water can raise rocks out of the streambed for brief periods.
  • When these boulders fall, they bump into other rocks and fragment into tiny fragments.

Wedging ice

  • Numerous rocks break as a result of ice wedging.
  • It refers to the repeatedly frozen and melted water inside tiny rock fissures.
  • The main reason for street potholes is this expansion and contraction.
  • As the temperature dips below freezing, the water seeps into the cracks in the rocks and expands as ice.
  • The cracks widened due to the expansion's intense pressure and wedge-like effect on the nearby rock.
  • The rock crumbles as a result of the frequent freezing and thawing of water.

Plant roots

  • In fissures, plant roots can spread.
  • A limited developing root can exert a lot of pressure.
  • As the roots spread, they can split rocks apart and cause wider fissures in the rocks.

Summary:

What are Examples of Physical Weathering?

A few examples of physical weathering are - the formation of tors, sizable granite exfoliation dome, heaving up gypsum and sodium chloride crystals, and frost weathering. Physical weathering, often known as mechanical weathering, is the process that fractures rocks without altering their chemical makeup.

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