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Pywiack Dome

Pywiack Dome is a prominent 600 foot granite dome in Yosemite National Park, located 0.7 miles north-east of Tenaya Lake, 4 miles west of Tuolumne Meadows and 200 feet from the Tioga Road. It is quite near Harlequin Dome, and North and South Whiz ...

Sentinel Dome

Sentinel Dome is a granite dome in Yosemite National Park, United States. It lies on the south wall of Yosemite Valley, 0.8 miles southwest of Glacier Point and 1.4 miles northeast of Profile Cliff. Sentinel dome is known for a Jeffrey pine that ...

South Whizz Dome (Tuolumne)

South Whizz Dome is a granite dome in the Tuolumne Meadows area of Yosemite National Park. South Whizz Dome is a bit south, of Cathedral Creek, which has its source, near Cathedral Peak. South Whizz Dome is north of both Medlicott Dome and Pywiac ...

Spy Rock (Mason County, Texas)

Spy Rock is a pink granite dome located in the Llano Uplift in Mason County, Texas, rising 1.749 feet above sea level. The peak is located south of Fredonia. Like enchanted rock, spy rock is formed of middle Precambrian 1.082 ± 6 million years ag ...

Mount Starr King (California)

Mount Starr King is a symmetrical granite dome in Yosemite National Park, whose highest point is 9.096 feet above sea level. Climbing the dome Starr Kings requires technical skills or equipment, and the easiest routes is at least the 5th grade in ...

Stately Pleasure Dome

Stately Pleasure Dome is the unofficial name for the prominent south-southwestern portion of Polly Dome, a granite dome on the northwest side of Tenaya Lake and Tioga Road in the Yosemite high country. Stately Pleasure Dome consists of glaciated ...

Stawamus Chief

The Stawamus Chief, officially Stawamus Chief Mountain, is a granitic dome located adjacent to the town of Squamish, British Columbia, Canada. It towers over 700 m above the waters of nearby Howe Sound. It is one of the largest granite monoliths ...

West Cottage Dome (Tuolumne)

West Cottage Dome is a granite dome in the Tuolumne Meadows area of Yosemite National Park. West Cottage Dome is rarely visited, though it the closest dome to Daff Dome.

West Quarter Dome

West Quarter Dome is a granodiorite dome, in the Tenaya Canyon area of Yosemite National Park. It is composed of Half Dome Granodiorite. There are two domes West of the East quarter, and the quarter domes, and they are next to each other. Ansel A ...

Wolfenstein (rock)

The Wolfenstein is an isolated rock formation, located between Tirschenreuth and Hohenwald in Bavaria. Due to erosion, the granite blocks appear to look like a pile of bags.

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 and south-central Africa, a similar formation of granite is known as a ...

Adakite

Adakites are volcanic rocks of intermediate to felsic composition that have geochemical characteristics of magma thought to have formed by partial melting of altered basalt that is subducted below volcanic arcs. Most magmas derived in subduction ...

Agglomerate

Agglomerate is a coarse accumulation of large blocks of volcanic material that contains at least 75% bombs. Volcanic bombs differ from volcanic blocks in that their shape records fluidal surfaces: they may, for example, have ropy, cauliform, scor ...

Andesite

Andesite is an extrusive igneous volcanic rock of intermediate composition, with aphanitic to porphyritic texture. In a general sense, it is the intermediate type between basalt and rhyolite, and ranges from 57 to 63% silicon dioxide as illustrat ...

Basaltic andesite

Basaltic andesite is a volcanic rock containing about 55% silica. It is distinct from basalt and andesite in having a different percentage of silica content. Minerals in basaltic andesite include olivine, augite and plagioclase. Basaltic andesite ...

Basanite

Basanite is an igneous, volcanic rock with aphanitic to porphyritic texture. Mineral Assembly is usually abundant feldspathoids nepheline or leucite, plagioclase, augite, and olivine, along with lesser iron-titanium oxides such as ilmenite and ma ...

Blairmorite

Blairmorite is a very rare porphyritic volcanic rock characterized by dominant analcime phenocrysts in a matrix of analcime, sanidine and alkalic pyroxene with accessory titanite, melanite and nepheline. It is a leucocratic variety of analcimite. ...

Brisbane tuff

Brisbane tuff is a type of rock, formed as a result of a volcanic eruption. As the name suggests, it is a type of tuff found in Brisbane, Queensland, Australia. Brisbane tuff is a welded form the ignimbrite. It is found in various parts of the ci ...

Dacite

Dacite is an igneous, volcanic rock. It has an aphanitic to porphyritic texture and is intermediate in composition between andesite and rhyolite. The word dacite comes from Dacia, a province of the Roman Empire which lay between the Danube River ...

Ignimbrite

Ignimbrite is a variety of hardened tuff. Ignimbrites are igneous rocks made up of crystal and rock fragments in a glass-shard groundmass, albeit the original texture of the groundmass might be obliterated due to high degrees of welding. The term ...

Keratophyre

Keratophyre is a volcanic rock of intermediate composition. Although similar to trachyte, keratophyres plagioclase component is richer in sodium than the plagioclase found in trachyte. Keratophyre forms lava flows and subvolcanic intrusions. Kera ...

Natrocarbonatite

Natrocarbonatite is a rare carbonatite lava which erupts from the Ol Doinyo Lengai volcano in Tanzania within the East African Rift of eastern Africa.

Porphyritic

Porphyritic is an adjective used in geology, specifically for igneous rocks, for a rock that has a distinct difference in the size of the crystals, with at least one group of crystals obviously larger than another group. Porphyritic rocks may be ...

Pyroxenite

Pyroxenite is an ultramafic igneous rock consisting essentially of minerals of the pyroxene group, such as augite, diopside, hypersthene, bronzite or enstatite. Pyroxenites are classified into clinopyroxenites, orthopyroxenites, and the websterit ...

Rhyodacite

Rhyodacite is an extrusive volcanic rock intermediate in composition between dacite and rhyolite. It is the extrusive equivalent of granodiorite. Phenocrysts of sodium-rich plagioclase, sanidine, quartz, and biotite or hornblende are typically se ...

Rhyolite

Rhyolite is an igneous, volcanic rock, of felsic composition. It may have any texture from glassy to aphanitic to porphyritic. The mineral assemblage is usually quartz, sanidine and plagioclase. Biotite and hornblende are common accessory mineral ...

Shoshonite

Shoshonite is a type of igneous rock. More specifically, it is a potassium-rich variety of basaltic trachyandesite, composed of olivine, augite and plagioclase phenocrysts in a groundmass with calcic plagioclase and sanidine and some dark-colored ...

Trachybasalt

Trachybasalt is a volcanic rock with a composition between trachyte and basalt. Minerals in trachybasalt include alkali feldspar, calcic plagioclase, olivine, clinopyroxene and likely very small amounts of leucite or analcime. Trachybasalt is a b ...

Trachyte

Trachyte is an igneous volcanic rock with an aphanitic to porphyritic texture. It is the volcanic equivalent of syenite. The mineral assemblage consists of essential alkali feldspar, relatively minor plagioclase and quartz or a feldspathoid such ...

Tuff

Tuff, also known as volcanic tuff, is a type of rock made of volcanic ash ejected from a vent during a volcanic eruption. Following ejection and deposition, the ash is compacted into a solid rock in a process called consolidation. Tuff is sometim ...

Volcanic ash aggregation

Volcanic ash aggregation occurs when particles of volcanic ash collide and stick together during transport. This process modifies the size distribution of airborne particles, which affects both atmospheric dispersal and fallout patterns on the gr ...

Volcanic block

A volcanic block is a fragment of rock that measures more than 64 mm in diameter and is erupted in a solid condition. The blocks are formed from material from previous eruptions or from country rock and are therefore mostly accessory or accidenta ...

Volcanic bomb

A volcanic bomb is a mass of molten rock larger than 64 mm in diameter, formed when a volcano ejects viscous fragments of lava during an eruption. They cool into solid fragments before they reach the ground. Because volcanic bombs cool after they ...

Deister Gate

The Deister Gate is a 550-metre-wide gap between the Deister and Kleiner Deister hill ridges in Springe in Hanover Region, Lower Saxony, Germany. The height of the pass varies between 130 m above NN to 120 m above NN. The River Haller rises in th ...

Heavitree Gap

The Heavitree Gap, or Ntaripe in the Arrernte language, is a water gap in the Northern Territory of Australia in the MacDonnell Ranges. It is the southern entrance to the city of Alice Springs and in addition to the Todd River it carries the main ...

Iron Gates

The Iron Gates is a gorge on the river Danube. It forms part of the boundary between Serbia and Romania. In the broad sense it encompasses a route of 134 km, in the narrow sense it only encompasses the last barrier on this route, just beyond the ...

Manawatu Gorge

The Manawatu Gorge runs for 6-9 km between the Ruahine and Tararua Ranges in the south part of the North Island of New Zealand, linking the Manawatu and Hawkes Bay regions. It lies to the northeast of Palmerston North. Its western end is near the ...

Middle Rhine

Between Bingen and Bonn, Germany, the river Rhine flows as the Middle Rhine through the Rhine Gorge, a formation created by erosion, which happened at about the same rate as an uplift in the region, leaving the river at about its original level, ...

Pongo de Mainique

The Pongo de Mainique is a water gap of the Urubamba River in Peru. Inside the water gap, the river is constricted to a width of 45 metres. The Pongo de Mainique is 3 kilometres long. The elevation of the river is approximately 450 metres. The st ...

Pongo de Manseriche

The Pongo de Manseriche is a gorge in northwest Peru. The Marañon River runs through this gorge before it reaches the Amazon Basin. From the Pongo de Manseriche is 3 miles 4.8 km, located at 4° 27 30" South latitude and 77° 34 51" East longitude, ...

Porta Westfalica (gorge)

The Porta Westfalica, also known as the Westphalian Gap, is a gorge and water gap where the Weser river breaks through the passage between the mountain chains of the Wiehen Hills in the west and the Weser Hills in the east. It is located in the d ...

Honeycomb weathering

Honeycomb weathering, also known as honeycombs, honeycombed sandstone, is a form of cavernous weathering and subcategory of tafoni that consists of regular, tightly adjoining, and commonly patterned cavities that are developed in weathered bedroc ...

Ampelodesmos

Ampelodesmos is a genus of Mediterranean plants in the grass family, which is known by the common names stramma, Mauritania grass, rope grass, and dis grass. It is classified in its own tribe Ampelodesmeae within the grass subfamily Pooideae. The ...

Astrocaryum aculeatissimum

Astrocaryum aculeatissimum is a palm native to Atlantic Coast restingas vegetation, which is an ecosystem of Atlantic Forest biome in Brazil. This plant has a commercial value because it has useful fibers which may be used to make production of b ...

Astrocaryum standleyanum

Astrocaryum standleyanum is a species of palm known by many common names, including chumba wumba, black palm, chonta, chontadura, coquillo, palma negra, pejibaye de montaña, guerre, guerregue, guinul, mocora, pucaishchi, and chunga. It is native ...

Esparto

Esparto, halfah grass, or esparto grass, is a fiber produced from two species of perennial grasses of north Africa and southern Europe. It is used for crafts, such as cords, basketry, and espadrilles. Stipa tenacissima and Lygeum spartum are the ...

Furcraea niquivilensis

Furcraea niquivilensis is a plant species native to Chiapas, Mexico. Niquivilensis Furcraea is monocarpic shrub with a trunk up to 3 m tall, 40 cm in diameter. It produces rosettes up to 150 leaves. Each leaf is lanceolate, the form of the sword, ...

Hesperostipa comata

Hesperostipa comata, commonly known as needle-and-thread grass, is a species of grass native to North America, especially the western third. It has a wide distribution spanning from northern Canada to Mexico.

Hesperostipa spartea

Hesperostipa spartea, formerly Stipa spartea, is a species of grass known by the common names porcupine grass, western porcupine grass, short-awn porcupine grass, porcupine needlegrass, and big needlegrass. It is native to North America, where it ...

Ichnocarpus frutescens

Ichnocarpus frutescens is a species of flowering plant in the dogbane family known by the English common name black creeper. It is native to much of China, India, Southeast Asia, and northern Australia. In Uttarakhand it is known as kali-dudhi, a ...

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