general geology
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The document provides an overview of general geology topics including the structure of Earth, reasons for studying geology, a view of Earth's spheres, and details about the International Space Station (ISS). It describes Earth's core, mantle and crust. It explains why geology is studied to understand hazards, resources, and the environment. It outlines the hydrosphere, atmosphere, biosphere and solid Earth. It then provides details about the construction, modules, and power supply of the ISS, which is an international research facility assembled in low Earth orbit.
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Geology powerpoint
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general geology
- 1. General Geology By Nitish Kankal Roll no:-201285034
- 2. 1 Earth 2 Why Study Geology? 3 A View of Earth Content 4 What is Space Station?? 5 Construction of ISS 6 About ISS 7 Power supply to ISS 8/31/2012 2
- 3. Earth ☺ The Crust ☺ The Mantle ☺ The Outer Core ☺ The Inner Core The Crust Surface (5 miles thick) ☺ Cool ☺ Hard 8/31/2012 3
- 4. Core ☺ Very big (1400 miles radius) ☺ Lots of iron and nickel ☺ Hot like the sun ☺ Enormous pressure ☺ Liquid/Solid Mantle ☺ Most of Earth (82%) ☺ Rock (1800 miles deep) ☺ Hot enough to melt most rocks ☺ High pressure (3 times higher) ☺ Solid with some fluid movement at surface 8/31/2012 4
- 5. Why Study Geology? • Mitigating Geologic Hazards • Earthquakes • Volcanoes • Supplying Things We Need • Metals • Minerals • Petroleum • Protecting the Environment • Water cycle • Global Change: Warming and Sea level rise • Understanding Our Surroundings • The Earth’s relationship to other planets 8/31/2012• Geological Time 5
- 6. A View of Earth • Earth is a planet that is small and self contained Earth’s four spheres • Hydrosphere • Atmosphere • Biosphere • Solid Earth 8/31/2012 6
- 7. Atmosphere From Earth’s surface to outer space ☺ 50 miles (Highline to Rocky Mountain National Park) ☺ Composition ☺80% Nitrogen ☺20% oxygen ☺Other gases… 8/31/2012 7
- 8. Atmosphere 8/31/2012 8
- 9. Hydrosphere “Water” ¾ of planet surface ☺ Where? ☺ Ocean (97%) ☺ 80% in the southern part of Earth ☺ Glaciers (2%) ☺ Ground Water (0.6%) 8/31/2012 9 ☺ Lakes, streams … (0.4%)
- 10. What is Space Station?? • Research facility in space being assembled in Low Earth Orbit • A complete home to the humans beyond the Earth • Two space stations are in orbit; the International space station, and China's Tiangong 1 8/31/2012 10
- 11. It includes • Joint project between NASA (USA), JAXA (Japan), RKA (Russia), ESA(Europe), CSA (Canada) and small contributions from others • Effects of long-term space exposure on the human body • Ultrasound scans and diagnosis and treatment of medical conditions in space • Study on cosmic rays, cosmic dust, antimatter and dark matter in the universe 8/31/2012 11
- 12. Construction of ISS & ISSModules • ISS construction started with the help of Russian Space Station Mir on 20 November 1998 and is scheduled to complete by 2011 end • Zarya(20.11.1998) • Unity node • Zvezda (Russia) • Destiny (U.S Laboratory) 8/31/2012 12
- 13. Power Supply • The source of electrical power for the ISS is the sun • Sunlight is converted into electricity by solar arrays. • Solar arrays are arranged as four pairs of wings, and each wing is capable of generating nearly 32.8 kW of DC power • Has rechargeable nickel-hydrogen batteries working life of 6 years 8/31/2012 13
- 14. Conclusion Ensure that a quality future will be left to our children as we make difficult decisions regarding natural resource consumption. 8/31/2012 14
- 15. Reference • http://geology.com/ • http://geology.com/articles/what-is-geology.shtml • http://geology.csustan.edu/club/whatisgeo.htm • http://www.factmonster.com/ipka/A0772964.html • http://www.igsb.uiowa.edu/TechnicalAssistance/GeneralG eology.htm 8/31/2012 15
- 16. 8/31/2012 16
- 17. THE END 8/31/2012 17
Editor's Notes
- Very big (1400 miles radius from center)Lots of iron and nickelHot like the sunEnormous pressure (14 times higher)Liquid/SolidMantleMost of Earth (82%)Rock (1800 miles deep) (Highline to state of Maine)Hot enough to melt most rocksHigh pressure (3 times higher)Solid with some fluid movement at surface
- National Aeronautics and Space Administration (NASA, United States)Russian Federal Space Agency (Roskosmos, Russian Federation)Japan Aerospace Exploration Agency (JAXA, Japan)Canadian Space Agency (CSA, Canada)European Space Agency (ESA, Europe)