The mountain-building processes of the Earth’s crust involve tremendous pressures and high temperatures. These extreme conditions alter igneous or sedimentary rocks, transforming them into metamorphic rock. Thus, metamorphic...
Sedimentary rocks are made from layers, or strata, of mineral particles found in other rocks that have been weathered and from newly formed organic matter. Sedimentary rocks are...
The upper 16 kilometers of the Earth’s crust is made up of 95% Igneous rock, with a thin covering of sedimentary and metamorphic rocks. Igneous rocks are formed...
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...
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...
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...
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...
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...
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...
