f you are standing on the hanging wall of a normal fault, looking across the fault plane, which way would the block opposite you appear to have moved?...

1- If you are standing on the hanging wall of a normal fault, looking across the fault plane, which way would the block opposite you appear to have moved?

up

down

laterally

It's impossible to tell from the information given.

2- In what ways are the Sierra Nevada, Coast Ranges, and the Andes ranges similar?

The Sierra Nevada range exhibits evidence of Andean-type mountain building with the range's placement along an active continental margin; the Sierra Nevada batholith is a remnant of a continental volcanic arc; there is no evidence of an accretionary wedge.

The Sierra Nevada range exhibits evidence of Andean-type mountain building with the range's placement along a passive continental margin; there is no batholith and no accretionary wedge.

The Sierra Nevada range exhibits evidence of Andean-type mountain building with the range's placement along an active continental margin; the Sierra Nevada batholith is a remnant of a continental volcanic arc; the Coast Ranges represent either an accretionary wedge or a past offshore island arc.

The Sierra Nevada range exhibits evidence of Andean-type mountain building with the range's placement along an active continental margin; there is no batholith; the Coast Ranges represent either an accretionary wedge or a past offshore island arc.

The Sierra Nevada range exhibits evidence of Andean-type mountain building with the range's placement along a passive continental margin; the Sierra Nevada batholith is a remnant of a continental volcanic arc; the Coast Ranges represent either an accretionary wedge or a past offshore island arc.

3- What is a batholith, and in what modern tectonic setting are batholiths being generated?

A batholith is a large rock structure that metamorphosed underground and became exposed after it was uplifted. A modern example of a batholith is the Coast Range batholith in western Canada.

A batholith is a group of plutons intruded by another group of plutons. Batholiths are currently being generated in the North American Cordillera.

A batholith is a conglomerate of sedimentary rock that formed underground and was later uplifted to Earth's surface. Batholiths are currently being generated in the Sierra Nevada Range in California.

A batholith is a massive pluton that crystallizes at depth within the crust. Batholiths are currently being generated within the North American Cordillera.

A batholith is a hot spot under Earth's crust that thins the lithosphere. Batholiths are currently being generated in Hawaii.

4- Terrane accretion generally occurs along a ________ boundary between a continental plate and an oceanic plate.

convergent

divergent

passive

transform

5-The Appalachian Mountains in North America were formed by a continent-continent collision in the Paleozoic, and are an example of a(n) _______-type orogeny.

Andean

Cordilleran

Alpine

Accretionary

6- Examine the words and/or phrases below and determine the relationship among the majority of words/phrases. Choose the option that does not fit the pattern.

volcanic arc

terrane

forearc basin

accretionary wedge

7- Isostasy refers to ________.

the accretion of crustal fragments during mountain building

the process by which mountains are formed

the process by which oceanic lithosphere descends into the mantle at a subduction zone

the concept that rocks of the crust and upper mantle are floating in gravitational balance

8- Which of the below choices supports the concept of crustal uplift?

Which of the below choices supports the concept of crustal uplift?

a.The southern tip of Africa has eroded so thin that it uplifts dramatically because of its isostatic buoyancy.

b.Crust on a sub ducting continental slab may uplift when its portion within the mantle breaks off the surface portion of the slab, thus decreasing the weight and increasing the buoyancy of the crust at the surface.

c.Seismic tomography has shown a super plume centered below the Himalayas. This is thought to explain the high topography of the area.

d.Seismic tomography has shown a super plume centered below the southern tip of Africa. This is thought to explain the high topography of the area, which consists of an expansive plateau with an elevation of 1500 kilometers.

e.The southern tip of Africa, which has a plateau that is 1500 kilometers in elevation, has been having material added to it over time, increasing its weight. As the weight of Africa's crust increases, its isostatic buoyancy also increases to balance the crust within the mantle.

9-How do mountainous regions experience gravitational collapse?

a.Mountains that have risen to extreme heights experience uplift in the upper crust and subsidence in the lower, ductile crust

b.Mountains that have risen to extreme heights experience ductile spreading at depth and normal faulting as well as subsidence in the upper, brittle portion of Earth's crust.

c.Mountains that have risen to extreme heights experience ductile spreading at depth and reverse faulting as well as subsidence in the upper, brittle portion of Earth's crust.

d.Mountains that have risen to extreme heights experience more compressional forces, which breaks the brittle rocks on the crust, causing massive rockfalls until the mountains cease to exist.

e.Mountains that have risen to extreme heights become so heavy that the crust that supports them sinks deeply into the mantle below, which significantly reduces the elevations of the mountains.