Introduction to Mass movement and its types.

Mass movement is defined as the movement of Earth material by the force of gravity. In other words, it is the detachment of rock materials and their down-slope transportation. According to R.J Chorley: ”Mass movement is the detachment and downslope transport of soil and rock material under the influence of gravity. The sliding and flowing …

Fluvial cycle of erosion

The word fluvial means running water and has been derived from the Latin word ”Fluvus” meaning river. Thus the fluvial cycle of erosion involves the degradation caused by running water in the shape of rivers, streams, and springs. Rivers are responsible for erosion and transportation simultaneously. They act through mechanical corrosion (Mechanical grinding of the …

Difference between weathering and erosion

(1). Weathering: Weathering is the chemical alteration and physical disintegration of Earth materials by the action of air, water and organisms. In other words, it is the breakdown of the rocks and their disintegration and decomposition without their movement from their original position to another area. Weathering is only the disintegration of the rocks particles …

Agents of Erosion

Erosion takes place usually through the following agents: Running Water Glaciers Wind Coastal Waves Chemical Solution (1). Running Water: Running water in the form of rivers and streams is a major source of erosion. Rivers and the streams act as sculptors, carvers, and cutters of the mountains, valleys, and plains through which they pass. The …

Penck’s Cycle of Erosion

Walther Penck was a German geo-scientist born in 1888 and died in 1923. He worked on geomorphology and landscape very deeply in the German language. His sudden death left his work uncompleted. He pointed out flaws in the Davis Theory of Erosion. According to Penck, the processes of upheaval and erosion go side by side. …

Davis Cycle of Erosion

William Moris Davis (1850-1934) was a prominent American geographer who founded the Association of American Geographers in 1904. He also put forward a theory of the cycle of erosion. The main points of his theory are as under: A cycle of erosion would affect all landscapes. The cycle consists of three stages. Youth Stage, Mature …

Erosion

Erosion may be defined as the wearing down of Earth’s surface through weathering and the transportation of the particles to distant places. For example, the boulder is first loosened in a mass movement and then its pieces are carried by the stream. Similarly, moving angular pieces of rocks produce etching which cuts the surface of …

Denudation

Weathering is the process of disintegration of rock particles from the surface of rocks is known as weathering, while erosion is the process by which the weathered particles are separated and transported from the parent rock to the low-lying areas. The combined process of weathering and erosion is known as Denudation. The weathering mass movement …

Weathering and its types

Weathering: Weathering is defined as the physical disintegration and chemical alteration of Earth materials by the action of water, air, and organisms. For example, the breakdown of rocks in situ, their disintegration and decomposition without distant transportation of the products. The process of creation of new relief features and wear and tear of Earth materials …

How to protect in earthquakes?

Earthquakes bring many changes to the natural and cultural landscape, but the greatest damage caused when buildings fail to survive an earthquake. Earthquake does not directly kill people, but people are killed by their own constructed buildings, which are vulnerable to an earthquake. Avoiding constructing buildings while fearing earthquakes is irrational. So in order to …