Category Archives: interior of the Earth

Prediction of Earthquakes

Posted on May 14, 2008 by Rashid Faridi

Can earthquakes be predicted? Many seismologists would probably answer, “Not yet, but eventually.” But to date, nobody has been able to predict earthquakes reliably enough and over short enough time scales to allow the evacuation of threatened cities. Some scientists … Continue reading →

Posted in interior of the Earth, seismic activities | Leave a comment

Geological Time Scale

Posted on April 26, 2008 by Rashid Faridi

Historical records only go back a few thousand years, and are inadequate to treat most geological processes. To understand the timing of geological processes we need to look at the geological rock record. This includes erosion, mountain building and other … Continue reading →

Posted in Archaeology, interior of the Earth, Physical geography | 1 Comment

Structure and composition of the Earth

Posted on April 26, 2008 by Rashid Faridi

What makes Earth unique? Soon after the Earth formed, unique processes occurred – division into metallic core, silicate mantle and crust – which, along with surface water, made it different from the other planets in our Solar System. The formation … Continue reading →

Posted in interior of the Earth | 1 Comment

Magmatic processes and igneous intrusions

Posted on April 26, 2008 by Rashid Faridi

Magma What is magma? Properties of magmas Chemical composition What is magma? Magma is hot molten mobile rock. Igneous rocks form when magma cools and solidifies. Magmas come out of active volcanoes as lavas. The most abundant magma is … Continue reading →