Monthly Archives: December 2008

2. Igneous Rocks

Posted on 31/12/2008 by Vitor Pacheco

2.1 Origin and Composition Convection cells must have developed in the Earth’s Mantle at a very early stage, consequently initiating the differentiation of the elements composing the original magma. Just like foam in a boiling pot, the less dense elements … Continue reading →

Posted in Geology, Igneous Rocks | 2 Comments

1. Introduction

Posted on 31/12/2008 by Vitor Pacheco

Geology is the study of the Earth’s crust and its continuous process of modification. At the beginning of solidification, approximately 3,9 Ga (giga annum = 109 years) ago, there were only Igneous Rocks, originating from the consolidation of the initial magma. … Continue reading →

Posted in Geology, Introduction | 1 Comment