logging in or signing up Minerals pranavam Download Post to : URL : Related Presentations : Share Add to Flag Embed Email Send to Blogs and Networks Add to Channel Uploaded from authorPOINT lite Insert YouTube videos in PowerPont slides with aS Desktop Copy embed code: Embed: Flash iPad Dynamic Copy Does not support media & animations Automatically changes to Flash or non-Flash embed WordPress Embed Customize Embed URL: Copy Thumbnail: Copy The presentation is successfully added In Your Favorites. Views: 4856 Category: Education License: All Rights Reserved Like it (5) Dislike it (1) Added: September 13, 2010 This Presentation is Public Favorites: 3 Presentation Description No description available. Comments Posting comment... Premium member Presentation Transcript Slide 1: Minerals & Power Resources The present age is known as IRON AGE. A naturally occurring substance that has a definite chemical composition is a mineral. Slide 2: Minerals and power resources form the backbone of industry in any country. There are over three thousand minerals On the basis of composition, minerals are classified into two Slide 3: Minerals Metallic Non-metallic Ferrous Non-ferrous Slide 4: Ferrous minerals contain iron in it Iron ore, manganese, chromites etc Non-metallic minerals do not contain metals Non-ferrous minerals do not contain iron, but contain some other metals Limestone, mica, gypsum etc Slide 5: The minerals which occur in the metal form is known as METALLIC MINERALS. Minerals which are not metals are known as NON-METALLIC MINERALS. Metallic minerals which are mixed with impurities are called ORES. Slide 6: The process of taking the minerals from rocks under the earth’s surface is known as mining. Extraction of Minerals Mining Quarrying Deepshaft Opencast Drilling Slide 7: The impurities are removed through a process called SMELTING. Slide 8: Non-metallic minerals Non-metallic minerals do not posses any content of metal. Slide 9: Minerals do not occur near the surface of the Earth. The extraction of minerals from the Earth’s depth is known as MINING. A MINE is an opened-up hole on the surface of the Earth to extract minerals from the depth of the Earth. Mines are of TWO kinds. Opencast Deep shaft Slide 11: Minerals that lie at small depth can be taken out by removing the surface layer . This is OPEN CAST mining. Shaft Mining is used for taking out the minerals that lie at great depths. Minerals like gold, diamond and iron are extracted from OPENCAST mines. Slide 12: Usually OIL, NATURAL GAS and COAL are extracted from DEEP SHAFT mines. Slide 13: OPENCAST mines are also known as QUARRIES. QUARRIES are usually used for mining stones, marble, granite etc. Slide 14: Distribution of Minerals All the minerals are found in rocks on the Earth. Some are found in igneous, some in sedimentary and some in metamorphic rocks. Generally metallic minerals are found in igneous and metamorphic rocks, because they are directly formed as a result of solidification of MAGMA. Slide 15: Usually SEDIMENTARY rocks contain non-metallic minerals like limestone. Mineral fuels such as petroleum are also found in sedimentary rocks. Slide 16: Asia’s mineral Wealth China and India have large iron ore deposits The two countries produce more than half of the world’s tin. China leads in the production of lead and tungsten etc. Asia ha s good deposit of manganese, bauxite, nickel zinc and copper too. Slide 17: Leading producer of iron ore in the world after China. Europe’s mineral Wealth Russia, Ukraine, Sweden, and France Deposits of copper, lead, zinc, manganese and nickel Slide 18: Mineral deposits in three zones. North America Minerals in North America Canadian Shield Appalachian Region Western Cordilleras Slide 19: South America Brazil produces high grade iron Chile and Peru produce copper Deposits of gold, silver, zinc, chromium, manganese, bauxite, mica, platinum, asbestos and diamond Petroleum is found in Venezuela, Argentina, Chile, Peru and Columbia. OPEC Slide 20: AFRICA Rich in mineral resources Largest producer of diamonds, gold and platinum South Africa, Zimbabwe and Zaire produce gold Copper, iron ore, chromium, uranium, cobalt, bauxite Petroleum is found in Nigeria, Libya and Angola Slide 21: AUSTRALIA Largest producer of bauxite Leading producer of gold, diamond, iron ore, tin, nickel, copper, lead, zinc & manganese Kalgoorlie & Coolgardie areas have largest deposits of gold You do not have the permission to view this presentation. In order to view it, please contact the author of the presentation.