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Page-7 of World Geography

Types of Rocks

Minerals are naturally occurring inorganic substances, often with a crystalline structure. They are composed largely of the most abundant elements in the Earth’s crust oxygen & silicon, coupled...

April 2, 2016

Earthquakes in India; Seismic Zoning and Major Quakes

India has a very high frequency of great earthquakes (magnitude greater than 8.0) in comparison to the moderate earthquakes (magnitude 6.0 to 7.0). For example, during 1897 to...

April 1, 2016

Basics of Seismic Waves: P Waves – S Waves Difference

The waves generated by the earthquake are called Seismic waves.  The study of earthquake and seismic waves is called Seismology and the researchers are called Seismologists. Seismic waves...

April 1, 2016

Various Earthquake Scales

Earthquake Magnitude and Earthquake Intensity are two terms often misunderstood. Earthquake magnitude is a measure of the size of the earthquake reflecting the elastic energy released by the...

April 1, 2016

Earthquake Types and Mechanism

In Earthquake, there is a sudden release of energy in the Earth’s crust, which leads to a series of motions because of the waves created due to this...

April 1, 2016

Earth’s Magnetosphere

Earth is surrounded by a magnetosphere. The invisible geomagnetic lines stretch from one pole, curve far out into space, then go back to the opposite pole. The curved...

April 1, 2016

Earth’s Magnetic Field

The Magnetic Field of the Earth is generated by the motion of molten iron alloys in the Earth’s outer core.  The solid inner core is too hot to...

April 1, 2016

Interesting Facts About Earth’s Core

Using the seismic data, the scientists had first postulated the existence of a fluid core. In 1915, Gutenberg published a measurement of the core’s radius. In 1936, Danish...

April 1, 2016

Important Facts About Earth’s Mantle

The mantle is a highly viscous layer between the crust and the outer core. The boundary between crust and mantle is called Mohorovičić discontinuity after the name of...

April 1, 2016

Earth’s Crust: Thickness, Composition, Lithosphere, Asthenosphere and Pedosphere

Earth’s crust is the outermost layer composed of various types of rocks. The boundary between the crust and mantle is generally called the Mohorovičić discontinuity. Thickness of Continental...

April 1, 2016

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