The igneous rocks are more commonly classified on the basis of the mode of occurrence into two major groups:- 1. Intrusive Igneous Rocks 2. Extrusive Igneous Rocks. Group # 1. Intrusive Igneous Rocks: When the rising magmas during a volcanic activity do not reach the earth’s surface rather they are cooled and solidfied below the […]
Groups of Igneous Rocks: Intrusive and Extrusive | Rocks | Geography
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Granites and Basalts | Igneous Rocks | Geography
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In this article we will discuss about the characteristics of granite and basalts which are the most significant examples of igneous rocks. Characteristics of Granites: Granites are the example of the plutonic intrusive igneous rocks which are formed deep within the earth. Since the rate of cooling and solidification of magmas inside the earth is […]
Igneous Rocks and Landforms | Rocks | Geography
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In this article we will discuss about the composition of igneous rocks and its landforms. Wide range of variations in the structure and composition of different types of igneous rocks largely controls the landscape characteristics of a given region. Basaltic plateaux and plains give birth to picturesque landscapes after continued weathering and erosion. Very deep […]