Category: MA GEOGRAPHY VIDEO

Kober was a Germen geologist who is consider to be an exponent of contraction hypothesis. According to Kober, the entire process or mountain building is accomplished in three closely related stage. These stage are known as Lithogensis, Orogrnsis and Gliptogensis

Isostasy simply means a mechanical stability between the upstanding part and low-lying basins on a rotating earth. The word isostasy derived from a germen word isostasios which meaning there by in equiposia was first proposed by American geologist Dutton in 1859.

Sedimentary rocks as sediment implies are composed largely of fragments of older rocks and minerals that have been more or less thoroughly consolidated and arranged in layers and strata. Igneous rocks are the most important original source of the sedimentary rock. There are two types of sedimentary rock on the basis of the nature of sediments.

Earthquake is a violent tremor in the earth crust, sending out a series of shock-waves in all direction from its focus or place of origin. Three types of seismic waves as P,L, S. Different parts of earthquake is focus, epicenter and seismic waves. Causes of earthquake are volcanic eruption, static disequilibrium and man-made cause. There are two types of effect primary and secondary

All those materials which form the crust of the earth whether hard like granite or soft clay, gravel or sand stone are called rock. Three types of rocks Igneous, Metamorphic and Sedimentary. Igneous rock formed due to cooling, solidification and crystallization of molten earth materials known as magma or lava. Igneous rock also known as primary or parent rock. Two type of igneous rock Intrusive and extrusive.