Exam 11: Mountains, Basins, and Continents

What tectonic event in the western U.S. caused magmatism and deformation to move farther into the continent during the late Mesozoic and early Cenozoic Laramide Orogeny?

How will future tectonic events change the thickness of the crust?

In the region shown in this figure, what is the most likely cause for a basin between the arc and continent?

What type of basin is shown in this figure?

What would probably happen to the small piece of continent that was offshore in the middle of the ocean)?

If you had this type of deformation of a region, it would:

What geologic setting is expressed by the formation of the Sierra Nevada and adjacent features?

How can we tell that the Himalaya has been uplifted?

Numerous terranes exist in Alaska. One of these is the Wrangellia terrane. Why is the Wrangellia terrane considered part of the same terrane as that from pieces scattered from western Idaho northward to Alaska?

Which of the following is NOT a setting in which regional mountain belts form?

A prism- or wedge-shaped, structurally complex zone of faults, folds, and mostly metamorphosed rocks that form along the upper parts of a subduction zone where sedimentary material and oceanic crust are scraped off the downgoing slab is called an):

Volcanism creates mountains that are:

Which numbered area on this geologic map of North America consists of recently added tectonic terranes?

What geologic events are expressed in this cross section of the western U.S. in late Paleozoic - early Mesozoic time?

Which of the following regions below would you predict to have the thickest continental crust?

Which of the following is NOT a type of terrane in California?

Which of the following is used to match continents or track positions of the continents in the past?

The average thickness of oceanic crust is:

Which numbered site is likely to have a thin sequence of sediments over crystalline rocks of the basement?

Which of the following is NOT the name of a supercontinent?