This is a List of rock formations, meaning isolated, scenic, or spectacular surface rock outcrops. These are usually the result of weathering and erosion sculpting the existing rock. Rock formation in general refers to specific sedimentary strata or other rock unit in stratigraphic and petrologic studies.
A rock structure can be created in any rock type or combination:
Sedimentary rocks are created from bits of rocks that have broken off other rocks by wind or water erosion, and deposited by wind, ice, or water. Erosion later exposes them in their current form. An example is Bryce Canyon National Park in Utah.
Metamorphic rocks are created by rocks that have evolved into another kind of rock, usually by heat and pressure. An example is Mount Rushmore National Monument in South Dakota.
Igneous rocks are created when molten rock cools and solidifies, with or without crystallization. They may be either intrusive bodies or volcanic extrusives. Again, erosive forces sculpt their current forms. An example is Half Dome in Yosemite National Park.
2007-12-12 05:35:45
·
answer #1
·
answered by Evilheat 3
·
0⤊
0⤋
Rocks are defined as an assemblage of 2 or more minerals. There are 3 types of rocks: igneous rocks (these form from the cooling of magma), sedimentary rocks (these form from broken down bits of other rocks), and metamorphic rocks (these are rocks that have been changed from their original form die to heat and pressure.
Look up the rock cycle to see how the 3 types are related and how they form.
2007-12-12 13:45:46
·
answer #2
·
answered by Lady Geologist 7
·
0⤊
0⤋
The rock cycle !!!!
the link explains all....
http://www.cotf.edu/ete/modules/msese/earthsysflr/rock.html
Hope this helps!!
2007-12-12 13:30:41
·
answer #3
·
answered by Anonymous
·
0⤊
0⤋
Well ther are many ways. One way is water wearing the rock down.
2007-12-12 13:44:06
·
answer #4
·
answered by get_r_done944 1
·
0⤊
2⤋