HW2 geology - Foley

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Worcester Polytechnic Institute *

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Geology

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Jan 9, 2024

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HW2 Geology – Foley 1. Define, in your own words, specific gravity. How does this property relate to density? Specific gravity is defined by the measure of a mineral’s density. It is related to density due to the fact that it can be found by the ratio of the mineral’s own density to the density of water (Density of mineral/ Density of water). The standard for comparing minerals is 1g/cm^3 as it is the density of water. 2. Search Mineral Galleries (http://www.galleries.com/) for the specific gravities of : 1. a) quartz _2.65_____ 2. b) olivine (use the Magnesium-rich end member __3.2_________ and the Iron- rich end member __4.3______) 3. c) pyroxene (use augite) _3.2________ 4. d) plagioclase [(use albite _2.61_______ and use anorthite _2.76______) 5. e) alkali feldspar (use microcline) _2.5__________ Prepare a table with the above minerals: Mineral group/ Name Specific Gravity Location Quartz 2.65 Continental crust Olivine - Forsterite - Fayalite 3.2 4.3 Mantle and oceanic crust

Pyroxene - Augite 3.2 Mantle and oceanic crust Plagioclase - Albite 2.61 Continental crust - Anorthite 2.76 Mantle and oceanic crust Alkali Feldspar - Microline 2.5 Continental crust For location, tell where the mineral or mineral group is concentrated: (1) continental crust, (2) oceanic crust, or (3) mantle. In general, high pressures favor higher densities and high temperatures favor lower densities. Within the outer part of the Earth, the pressure effect tends to dominate. From your table, generalize about the relationship between specific gravity and the concentration of these common minerals. 3. What is Carbon Capture Sequestration (CSS)? Could it be a solution to our current energy problems? Why? The find out more about CCS visit: www.fossil.energy.gov/programs/sequestration/capture/ or http://sequestration.mit.edu Carbon capture and sequestration (CCS) is a technology that captures carbon dioxide (CO2) from the atmosphere or from industrial emissions and stores it underground. CCS has the potential to be a solution to our current energy problems by helping to reduce greenhouse gas emissions and slow down climate change. However, there are also some challenges associated with CCS, such as its cost and the potential for environmental risks. Whether or not CCS is a solution to our current energy problems depends on a number of factors, but it has the potential to play a significant role in our efforts to mitigate climate change. 4. How can the government contribute to helping solve the energy issues in the United States?

The government can contribute to helping solve the energy issues in the United States using CSS in a number of ways. First, the government can provide funding for research and development of CCS technologies. This will help to make CCS more affordable and efficient. Second, the government can create regulations that encourage the use of CCS. This could include carbon pricing or emissions trading schemes. Third, the government can invest in demonstration projects that showcase the benefits of CCS. This will help to build public support for CCS and attract private investment. 5. What issues have we had with nuclear energy in the past? How is nuclear energy perceived by the public today? Why? How might that change? Public perception of nuclear energy has been affected by a number of issues, including nuclear accidents, radioactive waste, and cost. In the wake of the Chernobyl and Fukushima disasters, public support for nuclear energy declined significantly. However, there has been some resurgence of interest in nuclear energy in recent years, as concerns about climate change have grown. The future of nuclear energy is uncertain, but the public perception of nuclear energy is likely to change in the years to come, as the risks and benefits of nuclear power are better understood. The development of new technologies, such as small modular reactors, could make nuclear power more safe and affordable, which could lead to a renewed interest in nuclear power from the public. Additionally, the increasing threat of climate change and the increasing cost of renewable energy could also lead to a renewed interest in nuclear power. PART C 1. J 2. C 3. T 4. D 5. B 6. D 7. W 8. R 9. L 10. F 11. N 12. D 13. R 14. J 15. U

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16. T 17. I 18. A 19. B 20. H 21. R 22. E 23. K 24. P 25. X

HW2 geology - Foley

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