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Thursday February 2, 2012

Thursday February 2, 2012. (Mineral Resources). The Launch Pad Thursday, 2/2/12. What is the most common group of minerals?. the silicates. The Launch Pad Thursday, 2/2/12. Name two examples of non-silicate oxides. sapphire and ruby. Name two examples of non-silicate sulfides .

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Thursday February 2, 2012

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  1. ThursdayFebruary 2, 2012 (Mineral Resources)

  2. The Launch Pad Thursday, 2/2/12 What is the most common group of minerals? the silicates

  3. The Launch Pad Thursday, 2/2/12 Name two examples of non-silicate oxides. sapphire and ruby Name two examples of non-silicate sulfides. galena and pyrite Name two examples of non-silicate sulfates. gypsum and baryte Name two examples of non-silicate carbonates. calcite and malachite

  4. Announcements • I will be available after school today until 5:00

  5. Latest News • http://news.discovery.com/space/exoplanet-gj667cc-120202.html#mkcpgn=rssnws1

  6. Mineral Resources Mineral resources are Earth’s storehouse of useful minerals that can be recovered for use. Mineral reservesare already-identified deposits of minerals that can be extracted. Ores are useful metallic minerals that can be mined at a profit. Economic factors may change and influence a resource.

  7. An underground halite (salt) mine Figure 2.22

  8. Hematite, an ore of iron

  9. Metallic Mineral Resources Gold, silver, copper, mercury, and lead are examples of metallic mineral resources. Concentrations of these desirable materials are produced by both igneous and metamorphic processes.

  10. Metallic Mineral Resources The most important metallic ore deposits are generated from hydrothermal (hot-water) solutions. These hot solutions contain metal-rich fluids, and are associated with cooling magma bodies.

  11. Metallic Mineral Resources These types of deposits include: • vein deposits in fractures or bedding planes.

  12. Metallic Mineral Resources These types of deposits include: • disseminated deposits which are distributed throughout the rock Disseminated Chalcopyrite and Pyriteina Chlorite Matrix Heavily disseminated cubic pyrite in black stilpnomelane

  13. Non-Metallic Mineral Resources Non-metallic mineral resources make use of the material’s nonmetallic physical and chemical properties.

  14. Non-Metallic Mineral Resources Two broad groups of non-metallic mineral resources: • Building materials (e.g., limestone, gypsum)

  15. Non-Metallic Mineral Resources Two broad groups of non-metallic mineral resources: • Industrial minerals (e.g., fluorite, corundum, sylvite)

  16. MineralResources The annual per capita consumption of nonmetallic and metallic resources for the U.S. is about 12 tons. About 97% are nonmetallic. Energy resources (oil, coal, and natural gas) exceeds 12 tons.

  17. Final Question • By what process are the most important metallic ore deposits generated? • These deposits are generated from hydrothermal (hot-water) solutions, which contain metal-rich fluids, and are associated with cooling magma bodies.

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