is any body good at geography????

Question

ok wuts a block mountain i need a definition plz! thx.

Answer 1

Here ya go......

http://library.thinkquest.org/05aug/01406/block%20mountains.htm

It has a definition, as well as a picture example.

Hope this helps, and good luck on your work.

Answer 2

A fault results when the earth's crust
suddenly yields under unequal stress. The crust gets displaced along the
plane of breakage, also called the fault plane. This displacement can be
vertical or horizontal, or a combination of both. Faults are often of
great extent along the earth's surface (several kilometers), and they show
up quite clearly (for example, the San Andreas Fault). Over time, even
small faulting movements can add up considerably so that some faults have
displacements of thousands of meters.

If you get a situation where a block of crust gets elevated between two
normal faults, you get what is called a Horst. Horsts make blocklike
plateaus that have flat tops and steep straight sides. In regions where
faulting takes place on a grand scale, this produces mountain masses called
fault block mountains.

An example of a fault block mountain is the Basin and Range of Nevada. It
consists of a system of ranges which formed during the Tertiary as a
consequence of the stretching of the continental crust. The Sierra Nevada
mountains are a gigantic tilted normal fault-block structure where the
crust was being extended or pulled apart, and Horsts and Grabens (the
opposite of a Horst - a block has sunk between two faults) formed with the
uplifted Horsts becoming the mountain ranges. These mountains are separated
from the intervening valley floors by normal faults of great displacement.

Answer 3

Fault-block or fault mountains are produced when normal (near vertical) faults fracture a section of continental crust. Vertical motion of the resulting blocks, sometimes accompanied by tilting, can then lead to high escarpments. These mountains are formed by the earth's crust being stretched and extended by tensional forces. Tilted blocks are common in the Basin and Range region of the western United States. Level blocks lead to the horst and graben terrain seen in northern Europe. Fault block mountains commonly accompany rifting, another indicator of tensional tectonic forces.

Block Mountains can also be referred to as a horst. It is a steep-sided mountain, formed where a block of the earth's crust has been squeezed upward between two parallel fault lines. Two types of block mountains are lifted and tilted. Lifted type block mountains have two steep sides exposing both sides scarps. Tilted type block mountains have one gently sloping side and one steep side with an exposed scarp.

Two examples of fault block mountains that are forming today are the Andes and the Sierra Nevada (U.S.) mountain ranges.