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GEOMORPHOLOGY
GRADE 11
GEOGRAPHY
BP MKHATHI
218059929
AGENDA
WEATHERING
Types of weathering
2
INTRODUCTION
Geomorphology is the study of the processes that shape the surface of
the Earth. It is a branch of physical geography that deals with the origin
and evolution of the landforms on the Earth's surface, and how they are
influenced by natural processes such as weathering, erosion, and
tectonic activity. Geomorphologists use a variety of methods to study
these processes, including remote sensing, field observations, and
modeling. They can also use this information to predict future changes in
the landscape. Geomorphology is a fascinating and dynamic field that
can help us to understand the Earth's ever-changing landscape.
3
WHAT IS WEATHERING
Weathering is a natural process that breaks down rocks and
minerals on the Earth's surface. There are two main types of
weathering: physical and chemical. Physical weathering is the
breakdown of rocks and minerals through physical processes such
as wind, water, and temperature changes. Chemical weathering,
on the other hand, is the breakdown of rocks and minerals through
chemical processes such as oxidation and acid rain. Both types of
weathering work together to break down rocks and minerals and
transport them away from their original location. Eventually, this
process results in the formation of new rocks and minerals.
4
TYPES OF WEATHERING
There are several types of weathering, which can be
categorized into two main groups: physical and
chemical. Physical weathering includes processes such
as:- Abrasion: The wearing away of rocks by wind,
water, and sand.- Frost wedging: Water gets into cracks
in rocks, freezes, and expands, causing the rocks to
break apart.- Thermal expansion: Rocks expand and
contract with changes in temperature, causing them to
break down over time.
THANK YOU
Bomikazi Mkhathi
Bomikazim00@gmail.com

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geomorphology slide share.pptx

  • 3. INTRODUCTION Geomorphology is the study of the processes that shape the surface of the Earth. It is a branch of physical geography that deals with the origin and evolution of the landforms on the Earth's surface, and how they are influenced by natural processes such as weathering, erosion, and tectonic activity. Geomorphologists use a variety of methods to study these processes, including remote sensing, field observations, and modeling. They can also use this information to predict future changes in the landscape. Geomorphology is a fascinating and dynamic field that can help us to understand the Earth's ever-changing landscape. 3
  • 4. WHAT IS WEATHERING Weathering is a natural process that breaks down rocks and minerals on the Earth's surface. There are two main types of weathering: physical and chemical. Physical weathering is the breakdown of rocks and minerals through physical processes such as wind, water, and temperature changes. Chemical weathering, on the other hand, is the breakdown of rocks and minerals through chemical processes such as oxidation and acid rain. Both types of weathering work together to break down rocks and minerals and transport them away from their original location. Eventually, this process results in the formation of new rocks and minerals. 4
  • 5. TYPES OF WEATHERING There are several types of weathering, which can be categorized into two main groups: physical and chemical. Physical weathering includes processes such as:- Abrasion: The wearing away of rocks by wind, water, and sand.- Frost wedging: Water gets into cracks in rocks, freezes, and expands, causing the rocks to break apart.- Thermal expansion: Rocks expand and contract with changes in temperature, causing them to break down over time.