Compare and contrast confining pressure and compressional stress relating to metamorphic rocks. What will happen to the mineral crystals in each situation?Also, provide examples of geologic environments where such pressure would be the main agent of metamorphism.
What will be an ideal response?
Answer: Confining pressure on metamorphic rocks by applying pressure equally in all directions will collapse any open spaces between mineral grains to produce a more dense rock. An environmental example would be younger overlying materials burying sedimentary rocks and forcing them deeper into the interior. Compressional stress metamorphoses rocks by applying pressure that is greater in one direction and weaker in another. (For example, the horizontal pressure is greater than the vertical pressure.) This will cause the mineral crystals to elongate or reorient so that the crystal's long axis is perpendicular to the direction of highest pressure. An environment that would create such a scenario can include a convergent plate boundary.
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Which of the following is NOT a specific advantage of congregation to urban minority groups?
A) It helps the minority groups merge with other minority groups. B) It helps maintain and preserve the culture of the minority groups. C) It provides mutual support networks for members of the minority group. D) It helps preserve minority group membership and identity. E) It provides a power base and a defense in relation to the host society
The region where air flows together and rises vertically as a result of intense solar heating is known as
a. Latitude Zone b. Ozone Layer c. ITCZ d. Prime Meridian
________ occurs when air is displaced upward and undergoes adiabatic cooling
Fill in the blank(s) with the appropriate word(s).
How did the arrival of European settlers negatively impact Latin America?