Sandstone

Sandstone is converted into quartzite through heating and pressure usually related to tectonic compression within orogenic belts, and hence quartzite is a metasandstone.

Uluru (; Pitjantjatjara: Uluṟu [ˈʊlʊɻʊ]), also known as Ayers Rock ( AIRS) and officially gazetted as Uluru / Ayers Rock, is a large sandstone monolith.

The Externsteine ([ˈɛkstɐnʃtaɪnə]) is a distinctive sandstone rock formation located in the Teutoburg Forest, near the town of Horn-Bad Meinberg in the Lippe district of the German state of North Rhine-Westphalia.

Wadi Rum (Arabic: وادي رم Wādī Ramm, also Wādī al-Ramm, known also as the Valley of the Moon or Red mountains (Arabic: وادي القمر, romanized: Wādī al-Qamar), is a valley cut into the sandstone and granite rock in southern Jordan, near the border with Saudi Arabia and about 60 km (37 mi) to the east of the city of Aqaba.

The distinct shapes of these rocks result from an erosion-resistant layer of rock atop relatively softer sandstone.

The conservation area showcases a set of large red rock formations: a set of sandstone peaks and walls that were formed by thrust faults including the Keystone Thrust.

The peak displays a rocky crest of Torridonian sandstone, with many pinnacles and steep gullies.

The Toroweap Formation outcrops as a distinct layer of generally darker, interbedded slope- and cliff-forming strata lying between the brighter colored cliffs of the Kaibab Limestone above, and Coconino Sandstone below.

Cliff-forming interbeds of sandstone are noticeable throughout the group.

The mountains are mostly made of Torridonian sandstone.

These strata are particularly well exposed in the district of upper Loch Torridon, a circumstance which suggested the name Torridon Sandstone, first applied to these rocks by James Nicol.

Duckbill was a sandstone hoodoo rock formation at Cape Kiwanda State Natural Area, in the U.S. state of Oregon.

The Awa-no-dochū (阿波の土柱｜Earth Pillars of Awa, also referred to as the Awa Sand Pillars or Awa no Douban), is a formation of sandstone and gravel hoodoos located in the city Awa, Tokushima Prefecture, on the island of Shikoku, Japan.

The Belogradchik Rocks (Bulgarian: Белоградчишки скали, Belogradchishki skali) are a group of strangely shaped sandstone and conglomerate rock formations located on the western slopes of the Balkan Mountains (Stara Planina) near the town of Belogradchik in northwest Bulgaria.

It is a large sandstone rock split neatly down the middle into two parts, both balanced on small pedestals.

Because the soil is composed primarily of clay and sandstone rather than rock, the ground is not solid, and erosion has worn away the upper part of the mountain.

The heavily fissured, more or less porous, rock strata of the so-called Luxembourg Sandstone (geologically part of the Lower Jurassic or German Lias) are laid over keuper beds that tend towards being impervious.

Beneath a veneer of Quaternary deposits-chiefly glacial till and glaciofluvial sand and gravel-lie Upper Devonian bedrocks composed of interbedded sandstones, clays, dolomites and marls.

To the northwest, the watershed dividing the Nive and Bidassoa river basins follows the crest of a Permian-Triassic cuesta in the Baztan region, formed of pink sandstone.

The younger Precambrian Torridonian Sandstone, which sits on top of the gneiss, forms the bulk of all of the Torridon Hills, including Beinn Eighe, and was formed around 800 million years ago from the sediment of rivers that flowed across the landscape of the gneiss.

The submarine geology between the main groups is formed by sandstones and mudstones of Cambro-Ordovician age, though the bedrock is partly covered by sand and gravel.

The ancient depositional environment varied. Dakota Sandstone and Tropic Shale were deposited in the warm, shallow waters of the advancing and retreating Cretaceous Seaway (outcrops of these rocks are found just outside park borders).

Geologically, Cades Cove is a type of valley known as a "limestone window", created by erosion that removed the older Precambrian sandstone, exposing the younger Paleozoic limestone beneath.

The valley follows the Capertee River as it cuts through the Sydney Basin, a sedimentary basin consisting of Permian and Triassic sedimentary rock west of the Blue Mountains. Sandstone cliffs and limestone formations predominate the escarpment, which descend into a deep chasm sculpted into the environment over millions of years.

The main geological outcrops around the lake are mudstone, largely consisting of red Siltstone resulting in the underlying characteristic of the gently rolling valley landscape. Bands of Sandstone of the Triassic period contribute to the undulating character of the area.

The sedimentary rocks that are most likely to form cliffs include sandstone, limestone, chalk, and dolomite.

The voyagers have called it the Courthouse; but it looks infinitely more like the Capitol." Courthouse and Jail Rocks, which rise 400 feet (120 m) above the North Platte Valley, are composed of Brule clay, Gering sandstone and volcanic ash.

These natural processes have been shaping sandstone layers formed more than 166 million years ago during the Jurassic period's Middle epoch.

The Entrada Sandstone is a formation in the San Rafael Group found in the U.S. states of Wyoming, Colorado, northwest New Mexico, northeast Arizona, and southeast Utah.

The rocks of Fantasy Canyon, quartzose sandstones, were deposited during the Eocene Epoch.

Flysch () is a sequence of sedimentary rock layers that progress from deep-water and turbidity flow deposits to shallow-water shales and sandstones.

Over millennia, the Fort Valley was etched away due to low resistance of its limestone, while the mountain ridges of the Massanutten range are a tough quartz sandstone (Massanutten Sandstone, correlative to the Tuscarora Sandstone further to the west in the Ridge and Valley region) more resistant to that erosion.

The geology of the area consists of Triassic sandstones and underlying Permian sedimentary rocks.

The rocks of the Guiana Shield consist of metasediments and metavolcanics (greenstones) overlain by sub-horizontal layers of sandstones, quartzites, shales and conglomerates intruded by sills of younger mafic intrusives such as gabbros.

It was formed from Palaeocene-Upper Eocene with the interbedding of sandstone and shales.

is a series of fresh and brackish-water clays, mudstones, and sandstones deposited during the Maastrichtian and Danian (respectively, the end of the Cretaceous period and the beginning of the Paleogene) by fluvial activity in

Homoclinal ridges are the expression of regional outcrops of moderately dipping strata, typically sedimentary strata, that consist of alternating beds of hard, well-lithified strata, i.e. sandstone and limestone and weak or loosely cemented strata, i.e. shale, mudstone, and marl.

The formations consist of red-brown sedimentary conglomerate, sandstone, and minor mudstone rock from the Carboniferous Hopewell Cape Formation, part of the Mabou Group.

The further north and west, towards the Brokenback Range and the Upper Hunter, the more Triassic sandstone that can be found leading eventually to the carboniferous rocks that form the northern boundary of the Hunter with the New England Fold Belt and the foothills of the Barrington Tops.

The Kamenice Gorge was formed in the Tertiary period when the sea receded and volcanic activity caused the sandstone layers to break into many pieces.

Its strata, which consist mostly of shales and sandstones, record an almost continuous sequence of marine glacial to terrestrial deposition from the Late Carboniferous to the Early Jurassic.

Both sandstones were formed in the Permian period when the island was a desert, and in 2026 were found to preserve fossils of plants and tracks and burrows of burrowing animals.

Mesas consist of flat-lying soft sedimentary rocks, such as shales, capped by a resistant layer of harder rock, like sandstone or limestone, forming a caprock that protects the flat summit.

However, they are not like the typical volcanic plugs of igneous rock found elsewhere, as they are composed of a mixture of sandstone and conglomerate.

Part of the Colorado Plateau and Basin and Range, this red sandstone was laid down in the Lower Triassic and possibly part of the Middle Triassic, around 240 million years ago.

Mount of Danxia is identified by multi-layered red sedimentary rocks of sandstone and conglomerate, and the area of was formed by the fluvial deposition through the basin 140-65 million years ago.

The Navajo Sandstone is a geological formation in the Glen Canyon Group that is spread across the U.S. states of southern Nevada, northern Arizona, northwest Colorado, and Utah as part of the Colorado Plateau province of the United States.

Old Red Sandstone, abbreviated ORS, is an assemblage of rocks in the North Atlantic region largely of Devonian age.

The superficial rock of Orkney is almost entirely Old Red Sandstone, mostly of Middle Devonian age.

There are relatively small outcrops of Triassic sandstone at Broad Bay near Stornoway.

The Bungle Bungles were a plateau of Devonian sandstone, carved into a mass of beehive-shaped towers with regularly alternating, dark gray bands of cyanobacterial crust (single cell photosynthetic organisms).

Its predominantly composed of sedimentary materials such as sandstones, clays and conglomerates.

The Santa Clarita Valley is underlain by Quaternary alluvial deposits and coarse-grained Pleistocene age conglomerates dominated by sandstone of marine and non-marine origin.

There are also Old Red Sandstone deposits and granite intrusions.

In general, the geology of the Sierra Nevada del Cocuy consists on sedimentary rocks from the Cretaceous, broadly made up of sequences of quartzites, sandstones and fine-grained mudstones of Aptian and Cenomanian ages.

A slot canyon is a long, narrow channel or drainageway with sheer rock walls that are typically eroded into either sandstone or other sedimentary rock.

Extensive deposits of sandstone overlain by limestone accumulated in this basin during the Permian period of geologic time.

The uppermost, and younger of the two layers, consists of extremely hard quartzitic sandstone, commonly referred to as "Table Mountain Sandstone" (TMS), or "Peninsula Formation Sandstone" (as it is known as at present), which is highly resistant to erosion and forms characteristic steep grey crags.

The bottom of the valley of Jackson Creek also exposes a prehistoric buried creek valley, which is cut into 400 million year-old (Silurian) mudstones and sandstones.

Major lava flows have formed vast plateaus that overlie Paleozoic sandstone.

The sedimentary layers include the Beacon Supergroup sandstones, siltstones, and coal deposited beginning in the Silurian period and continuing into the Jurassic.

It is composed of severely eroded sedimentary rocks (sandstones and limestones) that are about 350 million years old.

Basement rocks in the area consist of the Late Jurassic Naknek Formation, which is composed of siltstones, and arkosic sandstones 1.7-2 km thick deposited in a marine shelf and submarine fan delta environment during the Oxfordian-Tithonian.

Just east of Vedauwoo, along I-80, sandstone cliffs are formed by the Permian-age Fountain Formation, which is about 300 million years old.

However near Zell, the right side of the valley is mostly made of Sandstone while its left side is made of Limestone (see Dinkelberg, Homburger Wald or Eichener See).

The Wingate Sandstone is a geologic formation in the Glen Canyon Group of the Colorado Plateau province of the United States which crops out in northern Arizona, northwest Colorado, Nevada, and Utah.

Close to Hereford, the geology of the area around the village of Woolhope is largely made up of Silurian limestones, shales and sandstones.