Skip to main content

Posts

Showing posts from January, 2021

Short Questions on Mountain Building

By
Short Questions on Mountain Building 1) In which book Kober described about Geosynclinal Theory? Answer : Kober has described about Geosyncline Theory on his book "Der Bau Der Erde". 2) What is Geosyncline? Answer : According to Kober, There were mobile zones of water in the places of present day mountains. He called this mobile zones of water as Geosynclines or orogen. 3) What is Kober's Geosyncline Theory based on? Answer : Kober's Geosyncline Theory is based on the forces of contraction produced by the cooling of the earth. 4) What was Kober's main objective in developing Geosyncline Theory? Answer : Kober's main objective was to establish relationship between ancient rigid masses or tabulanced and more mobile zones. 5) What is Kratogen? Answer : The geosynclines are long and wide mobile zones of water which are surrounded by some rigid masses which have been named as kratogen or forelands by Kober. 6) Name the stages through which process mount
Post a Comment
Read more

Map Projection : Concept of Map Projection

By
Map Projection : Concept of Map Projection Definition of map projection A map projection is the systematic representation of parallels and meridians of the globe over a plane surface. The network of parallels and meridians is called a graticule.  A map projection can also be said to be the transformation of the spherical network of parallels and meridians on a plane surface. It is a two-dimensional representation of the three dimensional global in per or in whole.  In the process of transformation, it becomes necessary to take a convenient scale. Classification of map projection Map projection can be classified by adapting the constructional approach.    On the basis of surface used for transferring the graticule, the projection are divided into - Zenithal Projection Conical Projection Cylindrical Projection On the basis of certain important qualities map projection are divided into - Conformality or Orthomorphism projection Correct bearing or true direction projection. Equ
Post a Comment
Read more

Structure and Characteristics of the Earth's crust and interior

By
Structure and Characteristics of the Earth's crust and interior The structure and characteristics of the earth's crust and interior has always remained a matter of great controversy among the geologist and geophysics. At present a lot of reliable knowledge is available about the crust and it's interrior. Since their is no way of finding the chemical composition of the unseened material, ideas on the interrior regions must be based on the indirect evidences and somewhat speculatives. The earth solidified heavier elements towards the centre and lighter elements slowly welled upward to the surface concentrating the crust. In the absence of direct evidence the structural characteristics of the unseen region of the earth can be measured for estimated more readily. The change in temperature, pressure and density with depth can be estimated from the velocity of earthquake waves through the earth. Temperature : It is an established fact that as we go down from the surfa
Post a Comment
Read more