Total Pageviews

Thursday, March 15, 2012

stones


The origin of this geological matter seems as a contradiction rather than a fact of life.  People have had the perception of stones or rather rocks being created from scratch but in actual geological context, this is actually a cycle whereby the rocks are built, eroded and rebuilt once again. The oldest rock formed was approximately 4.6 billion years ago. Thus, only can only imagine how that rock was formed.



 Volcanic activity plays a vital role in the formation of rocks.  As the magma cools down in the magma chambers, intrusive igneous rocks and minerals such as granite are formed. Once the volcano erupts, the lava drools down causing it to eventually cool down. This will create or rather form extrusive igneous rocks. On the long run, these rocks will hereafter erode depending on wind and rain activity. The eroded materials then find its way to the ground and waterways.  What next?  The sedimentary materials under the ocean, lakes and rivers will accumulate. The new layer buries the old layer sequentially causing the old layer to be compressed. This will create sedimentary rocks.



Rock formation actually involves the formation of igneous rocks, sedimentary rocks and metamorphosis rocks. Once the sedimentary rocks are formed, it metamorphoses into metamorphic rocks. This is dependent on the temperature and pressure exerted.  In detailed context, these rocks actually undergo a process of stretching and compression.



Let’s look at artificial stones shall we? Well, artificial stones are defined as synthetically manufactured stones which are widely used in the construction industry. Artificial stones are made from crushed natural stones bonded together using Portland cement with miniscule amounts of water/cement ratio. In short, artificial stones are manufactured for the ease or rather convenience of today’s community especially when in the construction industry.



No comments:

Post a Comment