In this article we will discuss about:- 1. Objectives of Radioactivity Theory 2. Bases of the Radioactivity Theory 3. Mechanism 4. Evaluation. Objectives of Radioactivity Theory: Joly postulated his theory based on radioactivity of certain radioactive minerals in the year 1925 in his book, 'Surface History of the Earth' to account for the origin and evolution of surface features of [...]
In this article we will discuss about:- 1. Objective of Plate Tectonic Theory 2. Base of the Plate Tectonic Theory 3. Mechanism 4. Evaluation. Objective of Plate Tectonic Theory: Plate tectonic theory is a comprehensive theory which offers explanations for various relief features and tectonic events viz. mountain building, folding and faulting, continental drift, vulcanicity, seismic events (earthquakes) etc. The [...]
In this article we will discuss about:- 1. Objectives of the Thermal Convection Current Theory 2. Base of the Thermal Convection Current Theory 3. Mechanism 4. Evaluation. Objectives of the Thermal Convection Current Theory: Arthur Holmes postulated his thermal convection current theory in the year 1928-29 to explain the intricate problems of the origin of major relief features of the [...]