Geology 1200: 1. What theory describes the formation of the universe (including

Question

Geology 1200:

1. What theory describes the formation of the universe (including the Milky Way galaxy)?

2. How old is the universe?

3. What theory describes the formation of our solar system?

4. How old is our solar system and everything in it?

5. What are the physical layers of the Earth?

6. What are the heat sources within Earth today?

7. What is the theory of plate tectonics?

8. What are the 3 types of plate boundaries?

9. What is the average plate motion each year?

10. What are the 5 parts of the definition of mineral?

11. What is the most common group of minerals (oxides, sulfides, etc.) in Earth’s crust?

12. What is the most common group of ore (metal) bearing minerals (oxides, sulfides, etc.)?

13. What magma type is continental and oceanic crust made of?

14. What magma properties influence volcanic eruptive style?

15. In what tectonic setting are explosive volcanoes found?

16. What specific type of volcano is most hazardous?

17. Why do volcanic rocks have smaller grain sizes than plutonic rocks?

18. What is the difference between weathering and erosion?

19. What are the two types of weathering?

20. How is most sediment transported on Earth? (ice, water, or wind?)

21. Why does limestone form in the deep oceans instead of sandstone or shale?

22. What 3 conditions change during metamorphism?

23. What is the most common cause of earthquakes?

24. What is the difference between the Mercalli, Richter, and Moment scales?

25. In what tectonic setting do highest magnitude earthquakes occur?

26. Know how tsunamis are generated, and why they aren’t associated with transform boundaries

27. What does the term

orogenesis

mean?

28. Why do crustal fragments accrete rather than subduct?

29. What is isostacy?

Explanation / Answer

1) Big Bang theory describe in the formation of universe.

2) The universe is approximately 13.8 billion years old.

3) Interstellar cloud system describe the theory of formation of our solar system.

4) Our solar system is 4.6 billion years old. everything lies in between 4.6 billion years.

5) physical layer of eart is Crust, mantle, outer core, inner core, Asthenosphere, Lithosphere etc.

6) Heat source within earth today are radiogenic heat and primordial heat.

7) The theory of plate tectonic has evolved from Harry Hess's concept of sea floor spreading in 1960. In 1967, w. j. Morgan and J. T. Wilson extended the idea of Hess and produces the theory of plate tectonics. It is a theory explaining the structure of the earth's crust and many associated phenomena as resulting from the interaction of rigid lithospheric plates which move slowly over the underlying mantle.

8) Three types of plate boundaries are Divergent Boundaries, Convergent Boundaries, Transform Fault Boundaries.

9) Average plate motion each year is 2.5 cm.

10) five parts of mineral defination are a) Naturally occuring, b) Homogeneous solid, c) Definite composition, d) Perfect atomic arrengement, e) Inorganic orogin.

11) Most common group of minerals are Oxide, Silicate, carbonate, sulfides, Sulfates, Chlorites.

12) The most common group of ore bearing minerals are Oxide, Sulfides.

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