What is the approximate pressure gradient of the Earth? What is the pressure at the base of typical (35 km thick) continental crust?What are the two principal sources of heat in the Earth?What are the four ways that heat can be transferred?What is meant by the geothermal gradient?What are reasonable average oceanic and continental geothermal gradients? Why is one greater than the other?What would you name a rock in which the weight percentage of Na2O = 8%, K2O = 5% and SiO2 = 57%? What would you name a rock containing 60% ash, 30% fragments between 3 and 15 mm, and 10% fragments over 64 mm if it were a light pink color?Why does the QAPF diagram present problems for P-rich rocks? What are the three possible phaneritic P-rich rock names and on what basis they may they be distinguished?What are the two contrasting P-rich aphanitic rock names and how they are distinguished?What are the three principal categories of igneous rocks? What characterizes each?

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Answered: What is the approximate pressure…

9th Edition

ISBN:9780134746241

Author:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa

Publisher:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa

Chapter1: The Study Of Minerals

Section: Chapter Questions

Problem 1LR

Related questions

Question

What is the approximate pressure gradient of the Earth? What is the pressure at the base of typical (35 km thick) continental crust?
What are the two principal sources of heat in the Earth?
What are the four ways that heat can be transferred?
What is meant by the geothermal gradient?
What are reasonable average oceanic and continental geothermal gradients? Why is one greater than the other?

What would you name a rock in which the weight percentage of Na₂O = 8%, K₂O = 5% and SiO₂ = 57%?

What would you name a rock containing 60% ash, 30% fragments between 3 and 15 mm, and 10% fragments over 64 mm if it were a light pink color?
Why does the QAPF diagram present problems for P-rich rocks? What are the three possible phaneritic P-rich rock names and on what basis they may they be distinguished?
What are the two contrasting P-rich aphanitic rock names and how they are distinguished?
What are the three principal categories of igneous rocks? What characterizes each?

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