A rock formation is an isolated, scenic, or spectacular surface
rock
Rock most often refers to:
* Rock (geology), a naturally occurring solid aggregate of minerals or mineraloids
* Rock music, a genre of popular music
Rock or Rocks may also refer to:
Places United Kingdom
* Rock, Caerphilly, a location in Wales ...
outcrop
An outcrop or rocky outcrop is a visible exposure of bedrock or ancient superficial deposits on the surface of the Earth.
Features
Outcrops do not cover the majority of the Earth's land surface because in most places the bedrock or superficia ...
. Rock formations are usually the result of
weathering
Weathering is the deterioration of rocks, soils and minerals as well as wood and artificial materials through contact with water, atmospheric gases, and biological organisms. Weathering occurs ''in situ'' (on site, with little or no movement) ...
and
erosion
Erosion is the action of surface processes (such as water flow or wind) that removes soil, rock, or dissolved material from one location on the Earth's crust, and then transports it to another location where it is deposited. Erosion is dis ...
sculpting the existing rock. The term ''rock
formation
Formation may refer to:
Linguistics
* Back-formation, the process of creating a new lexeme by removing or affixes
* Word formation, the creation of a new word by adding affixes
Mathematics and science
* Cave formation or speleothem, a secondar ...
'' can also refer to specific sedimentary
strata or other rock unit in
stratigraphic
Stratigraphy is a branch of geology concerned with the study of rock layers (strata) and layering (stratification). It is primarily used in the study of sedimentary and layered volcanic rocks.
Stratigraphy has three related subfields: lithostra ...
and
petrologic
Petrology () is the branch of geology that studies rocks and the conditions under which they form. Petrology has three subdivisions: igneous, metamorphic, and sedimentary petrology. Igneous and metamorphic petrology are commonly taught together ...
studies.
A rock structure can be created in any rock type or combination:
*
Igneous rocks are created when molten rock cools and solidifies, with or without crystallisation. They may be either
plutonic
Intrusive rock is formed when magma penetrates existing rock, crystallizes, and solidifies underground to form '' intrusions'', such as batholiths, dikes, sills, laccoliths, and volcanic necks.Intrusive RocksIntrusive rocks accessdate: March ...
bodies or
volcanic
A volcano is a rupture in the crust of a planetary-mass object, such as Earth, that allows hot lava, volcanic ash, and gases to escape from a magma chamber below the surface.
On Earth, volcanoes are most often found where tectonic plates a ...
extrusive. Again, erosive forces sculpt their current forms.
*
Metamorphic rocks
Metamorphic rocks arise from the transformation of existing rock to new types of rock in a process called metamorphism. The original rock (protolith) is subjected to temperatures greater than and, often, elevated pressure of or more, caus ...
are created by rocks that have been transformed into another kind of rock, usually by some combination of heat, pressure, and chemical alteration.
*
Sedimentary rock
Sedimentary rocks are types of rock that are formed by the accumulation or deposition of mineral or organic particles at Earth's surface, followed by cementation. Sedimentation is the collective name for processes that cause these particles ...
s are created by a variety of processes but usually involving deposition, grain by grain, layer by layer, in water or, in the case of terrestrial sediments, on land through the action of wind or sometimes moving ice.
Erosion
Erosion is the action of surface processes (such as water flow or wind) that removes soil, rock, or dissolved material from one location on the Earth's crust, and then transports it to another location where it is deposited. Erosion is dis ...
later exposes them in their current form.
Geologists have created a number of terms to describe different rock structures in the
landscape that can be formed by natural processes:
*
Butte
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In geomorphology, a butte () is an isolated hill with steep, often vertical sides and a small, relatively flat top; buttes are smaller landforms than mesas, plateaus, and tablelands. The word ''butte'' comes from a French word me ...
*
Cliff
In geography and geology, a cliff is an area of rock which has a general angle defined by the vertical, or nearly vertical. Cliffs are formed by the processes of weathering and erosion, with the effect of gravity. Cliffs are common on co ...
*
Cut bank
*
Escarpment
An escarpment is a steep slope or long cliff that forms as a result of faulting or erosion and separates two relatively level areas having different elevations.
The terms ''scarp'' and ''scarp face'' are often used interchangeably with ''esca ...
*
Gorge
*
Inselberg
An inselberg or monadnock () is an isolated rock hill, knob, ridge, or small mountain that rises abruptly from a gently sloping or virtually level surrounding plain.
In Southern Africa a similar formation of granite is known as a koppie, a ...
, or monadnock
*
Mesa
A mesa is an isolated, flat-topped elevation, ridge or hill, which is bounded from all sides by steep escarpments and stands distinctly above a surrounding plain. Mesas characteristically consist of flat-lying soft sedimentary rocks capped by a ...
*
Peak Peak or The Peak may refer to:
Basic meanings Geology
* Mountain peak
** Pyramidal peak, a mountaintop that has been sculpted by erosion to form a point Mathematics
* Peak hour or rush hour, in traffic congestion
* Peak (geometry), an (''n''-3)-di ...
*
Promontory
* River cliff
*
Sea cliff
Seacliff or Sea Cliff or Sea Cliffe may refer to:
;Places
''Australia''
*Seacliff, South Australia, suburb of Adelaide
* Seacliff Park, South Australia, a suburb of Adelaide
*Sea Cliff Bridge, in Illawarra, New South Wales
''New Zealand''
*Seacl ...
*
Stack
*
Stone run
*
Tor
Tor, TOR or ToR may refer to:
Places
* Tor, Pallars, a village in Spain
* Tor, former name of Sloviansk, Ukraine, a city
* Mount Tor, Tasmania, Australia, an extinct volcano
* Tor Bay, Devon, England
* Tor River, Western New Guinea, Indonesia
Sc ...
Here is a list of rock formations by continent.
Asia
Armenia
*
Geghard
Geghard ( hy, Գեղարդ, meaning "spear") is a medieval monastery in the Kotayk province of Armenia, being partially carved out of the adjacent mountain, surrounded by cliffs. It is listed as a UNESCO World Heritage Site with enhanced protec ...
*
Garni Gorge
The Garni Gorge is situated 23 km east of Yerevan, Armenia, just below the village of the same name. On a promontory above the gorge the first-century AD Temple of Garni may be seen. Along the sides of the gorge are cliff walls of well-preserv ...
*
Goris
Goris ( hy, Գորիս) is a town and the centre of the urban community of Goris, in Syunik Province at the south of Armenia. Located in the valley of the Goris (or Vararak) River, it is 254 km from the Armenian capital Yerevan and 67 ...
*
Khndzoresk
Khndzoresk ( hy, Խնձորեսկ, ) is a village in the Goris Municipality of the Syunik Province in Armenia. The village is located to the east of the Goris- Stepanakert highway, on the steep slopes of Khor Dzor (Deep Gorge), which the village i ...
China
*
Yunmeng Mountain National Forest Park, Beijing
*
Guilin
Guilin (Standard Zhuang: ''Gveilinz''; alternatively romanized as Kweilin) is a prefecture-level city in the northeast of China's Guangxi Zhuang Autonomous Region. It is situated on the west bank of the Li River and borders Hunan to the nort ...
,
Guangxi Zhuang Autonomous Region
Guangxi (; ; alternately romanized as Kwanghsi; ; za, Gvangjsih, italics=yes), officially the Guangxi Zhuang Autonomous Region (GZAR), is an autonomous region of the People's Republic of China, located in South China and bordering Vietnam ( ...
*
Huangshan
Huangshan (),Bernstein, pp. 125–127. literally meaning the Yellow Mountain(s), is a mountain range in southern Anhui Province in eastern China. It was originally called “Yishan”, and it was renamed because of a legend that Emperor Xuan ...
, Anhui Province
*
Wulingyuan Scenic and Historic Interest Area,
Zhangjiajie
Zhangjiajie (), also known in Tujia language as ''Zhangx jif avlar'' /dzaŋ˩ ji˥ a˩.la˥/, is a prefecture-level city in the northwestern part of Hunan Province, China. It comprises the district of Yongding, Wulingyuan and counties of Cili ...
, Hunan
Hong Kong
*
Amah Rock
Amah Rock (, ''Mong Fu Shek'', "husband-watching stone") is a naturally shaped rock located on a hilltop in southwest Sha Tin District, Hong Kong.
Description
The rock is approximately 15 meters in height, and is shaped much like a woman car ...
, New Territories
*
Lion Rock
Lion Rock, or less formally Lion Rock Hill, is a mountain in Hong Kong. It is located in Sha Tin District, between Kowloon Tong of Kowloon and Tai Wai of the New Territories, and is high. The peak consists of granite covered sparsely by shr ...
, New Kowloon/New Territories
Jordan
*
Petra,
Amman
Amman (; ar, عَمَّان, ' ; Ammonite language, Ammonite: 𐤓𐤁𐤕 𐤏𐤌𐤍 ''Rabat ʻAmān'') is the capital and largest city of Jordan, and the country's economic, political, and cultural center. With a population of 4,061,150 a ...
*
Wadi Rum Desert
India
*
Jabalpur
Jabalpur is a city situated on the banks of Narmada River in the state of Madhya Pradesh, India. According to the 2011 census, it is the third-largest urban agglomeration in Madhya Pradesh and the country's 38th-largest urban agglomeration. J ...
Marble Rocks,
Madhya Pradesh
Madhya Pradesh (, ; meaning 'central province') is a state in central India. Its capital is Bhopal, and the largest city is Indore, with Jabalpur, Ujjain, Gwalior, Sagar, and Rewa being the other major cities. Madhya Pradesh is the seco ...
*Rock Formations in
Rayalseema
Rayalaseema () is a geographic region in the Indian state of Andhra Pradesh. It comprises eight south western districts of the State namely, Kurnool, Nandyal, Anantapur, Sri Sathya Sai, YSR, Annamayya, Tirupati and Chittoor districts ...
Andhra Pradesh
Andhra Pradesh (, abbr. AP) is a state in the south-eastern coastal region of India. It is the seventh-largest state by area covering an area of and tenth-most populous state with 49,386,799 inhabitants. It is bordered by Telangana to the ...
,
Hampi
Hampi or Hampe, also referred to as the Group of Monuments at Hampi, is a UNESCO World Heritage Site located in Hampi town, Vijayanagara district, east-central Karnataka, India.
Hampi was the capital of the Vijayanagara Empire in the 14th&n ...
Karnataka
Karnataka (; ISO: , , also known as Karunāḍu) is a state in the southwestern region of India. It was formed on 1 November 1956, with the passage of the States Reorganisation Act. Originally known as Mysore State , it was renamed ''Karnat ...
*
Yana
Yana may refer to:
Locations
*Yana, Burma, a village in Hkamti Township in Hkamti District in the Sagaing Region of northwestern Burma
*Yana, India, a village in the Uttara Kannada district of Karnataka, India
* Yana, Nigeria, an administrative ca ...
Israel
*
Rosh Hanikra
*Timna Arch,
Eilat
*
Karnei Hattin
Lebanon
*Cape