Advertisement Upgrade to remove ads

The concept that rocks of the crust and upper mantle are floating in gravitational balance is known as ________.

isostasy

According to the crustal, gravitational balance idea, which of the following statements is true?

A mountain range undergoing erosion should uplift slowly.

The Valley and Ridge Province of the Appalachian Mountains is characterized by ________.

sedimentary strata folded in late Paleozoic time

Which of the following best describes the geology of the Pacific coastal regions of western North America including Alaska?

Geologically different, microcontinent-sized fragments and terranes, formed elsewhere, were tectonically accreted to North America.

How were the Ural Mountains (Russia) formed?

Marine strata in a basin between the former Asian and European plates were squeezed, folded, and uplifted as the two joined to form the Eurasian plate.

The ranges of the central and southern Rocky Mountains ________.

are uplifted blocks that typically have cores of Proterozoic igneous and metamorphic rocks

During late Paleozoic time, the tectonic configuration of the Appalachian region in eastern North America was most similar to the ________.

areas of Africa and Arabia bordering on the Red Sea

The Sierra Nevada, CA, and Teton, WY ranges are examples of ________.

fault blocks uplifted by late Tertiary to Quaternary normal faulting

The ________ are a geologically old mountain range folded and deformed during the Paleozoic.

Appalachians in the eastern United States

Topographically high-standing, mountainous areas generally ________.

are underlain by greater than average thicknesses of lower density, crustal rocks

Which one of the following is an example of an isostatic movement?

uplift of areas recently covered by thick, continental ice sheets

Folded limestones that occur high in the Himalayas were originally deposited as sediments in a ________.

marine basin between India and Eurasia

Since the early Mesozoic, the ________ has been passive tectonically.

eastern margin in the United States

Accretionary wedges are formed ________.

at the edge of the overriding plate facing a subduction zone

The term ________ refers specifically to geologic mountain building.

orogeny

Volcanism along a continental arc is dominated by the eruption of ________.

andesitic lavas and pyroclastic materials

A(n) ________ is a zone where two continents collide, often preserving slivers of oceanic lithosphere between the colliding plates.

suture

The ________ are a geologically old mountain range folded and deformed during the Paleozoic.

Appalachians in the eastern United States

The ________ have crust about twice as thick as normal.

Himalayan Range and Tibetan Plateau in northern India and southwestern China

Which of the following mountain is oldest?

The Appalachians

Please allow access to your computer’s microphone to use Voice Recording.

Having trouble? Click here for help.

We can’t access your microphone!

Click the icon above to update your browser permissions above and try again

Example:

Reload the page to try again!

Reload

Press Cmd-0 to reset your zoom

Press Ctrl-0 to reset your zoom

It looks like your browser might be zoomed in or out. Your browser needs to be zoomed to a normal size to record audio.

Please upgrade Flash or install Chrome
to use Voice Recording.

For more help, see our troubleshooting page.

Your microphone is muted

For help fixing this issue, see this FAQ.

Star this term

You can study starred terms together

NEW! Voice Recording

Create Set