Snæfellsjökull
Encyclopedia
Snæfellsjökull is a 700,000 year old stratovolcano
Stratovolcano
A stratovolcano, also known as a composite volcano, is a tall, conical volcano built up by many layers of hardened lava, tephra, pumice, and volcanic ash. Unlike shield volcanoes, stratovolcanoes are characterized by a steep profile and periodic, explosive eruptions...

 with a glacier
Glacier
A glacier is a large persistent body of ice that forms where the accumulation of snow exceeds its ablation over many years, often centuries. At least 0.1 km² in area and 50 m thick, but often much larger, a glacier slowly deforms and flows due to stresses induced by its weight...

 covering its summit in western Iceland
Iceland
Iceland , described as the Republic of Iceland, is a Nordic and European island country in the North Atlantic Ocean, on the Mid-Atlantic Ridge. Iceland also refers to the main island of the country, which contains almost all the population and almost all the land area. The country has a population...

. The name of the mountain is actually Snæfell
Snæfell
There are three volcanoes with the name Snæfell in Iceland:* The famous mountain Snæfellsjökull with its big glacier on top lies to the west of the island ....

, but it is normally called "Snæfellsjökull" to distinguish it from two other mountains with this name. It is situated on the most western part of the Snæfellsnes
Snæfellsnes
The Snæfellsnes is a peninsula situated to the west of Borgarfjörður, in western of Iceland.It has been named Iceland in Miniature, as many national sights can be found in the area, including the Snæfellsjökull volcano, regarded as one of the symbols of Iceland. With its height of 1446 m, it...

 peninsula in Iceland
Iceland
Iceland , described as the Republic of Iceland, is a Nordic and European island country in the North Atlantic Ocean, on the Mid-Atlantic Ridge. Iceland also refers to the main island of the country, which contains almost all the population and almost all the land area. The country has a population...

. Sometimes it may be seen from the city of Reykjavík
Reykjavík
Reykjavík is the capital and largest city in Iceland.Its latitude at 64°08' N makes it the world's northernmost capital of a sovereign state. It is located in southwestern Iceland, on the southern shore of Faxaflói Bay...

 over the bay of Faxaflói
Faxaflói
Faxaflói , formerly known in English as Faxa Bay and Faxe Bay, is a bay in Southwest-Iceland between the peninsulas of Snæfellsnes and Reykjanes.The capital of the island, Reykjavík, is situated on its southern shore...

, at a distance of 120 km.

The mountain is one of the most famous sites of Iceland, primarily due to the novel A Journey to the Center of the Earth (1864
1864 in literature
The year 1864 in literature involved some significant new books.-Events:*Ambrose Bierce is wounded at the Battle of Kennesaw Mountain.*Charles Baudelaire leaves Paris for Belgium in the hope of resolving his financial difficulties....

) by Jules Verne
Jules Verne
Jules Gabriel Verne was a French author who pioneered the science fiction genre. He is best known for his novels Twenty Thousand Leagues Under the Sea , A Journey to the Center of the Earth , and Around the World in Eighty Days...

, in which the protagonists find the entrance to a passage leading to the center of the earth on Snæfellsjökull.

The mountain is included in the Snæfellsjökull National Park (Icelandic: Þjóðgarðurinn Snæfellsjökull).

Geology

The stratovolcano
Stratovolcano
A stratovolcano, also known as a composite volcano, is a tall, conical volcano built up by many layers of hardened lava, tephra, pumice, and volcanic ash. Unlike shield volcanoes, stratovolcanoes are characterized by a steep profile and periodic, explosive eruptions...

, which is the only large central volcano in its part of Iceland, has many pyroclastic cones
Volcanic cone
Volcanic cones are among the simplest volcanic formations. They are built by ejecta from a volcanic vent, piling up around the vent in the shape of a cone with a central crater. Volcanic cones are of different types, depending upon the nature and size of the fragments ejected during the eruption...

 on its flanks. Upper-flank craters
Volcanic crater
A volcanic crater is a circular depression in the ground caused by volcanic activity. It is typically a basin, circular in form within which occurs a vent from which magma erupts as gases, lava, and ejecta. A crater can be of large dimensions, and sometimes of great depth...

 produced intermediate
Intermediate composition
In igneous petrology an intermediate composition refers to the chemical composition of a rock that has 52-63 wt% SiO2 being an intermediate between felsic and mafic compositions. Typical intermediate rocks include andesite, dacite and trachyandesite among volcanic rocks and diorite and granodiorite...

 to felsic
Felsic
The word "felsic" is a term used in geology to refer to silicate minerals, magma, and rocks which are enriched in the lighter elements such as silicon, oxygen, aluminium, sodium, and potassium....

 materials, while lower-flank craters produced basalt
Basalt
Basalt is a common extrusive volcanic rock. It is usually grey to black and fine-grained due to rapid cooling of lava at the surface of a planet. It may be porphyritic containing larger crystals in a fine matrix, or vesicular, or frothy scoria. Unweathered basalt is black or grey...

ic lava flows. Several holocene
Holocene
The Holocene is a geological epoch which began at the end of the Pleistocene and continues to the present. The Holocene is part of the Quaternary period. Its name comes from the Greek words and , meaning "entirely recent"...

 eruptions have originated from the summit crater and have produced felsic
Felsic
The word "felsic" is a term used in geology to refer to silicate minerals, magma, and rocks which are enriched in the lighter elements such as silicon, oxygen, aluminium, sodium, and potassium....

 material. The latest eruption took place 200 AD ± 150 years, and erupted approximately 0.11 cubic kilometre (0.0263904034464715 cu mi) worth of volcanic material. The eruption was explosive
Explosive eruption
An explosive eruption is a volcanic term to describe a violent, explosive type of eruption. Mount St. Helens in 1980 was an example. Such an eruption is driven by gas accumulating under great pressure. Driven by hot rising magma, it interacts with ground water until the pressure increases to the...

 and originated from the summit crater, and may have produced lava flows.

Snæfellsjökull National Park is Iceland’s only National Park to extend to the seashore. The park covers an area of 170 km² (65 sq. miles). The Park’s southern boundary reaches to Háahraun in the region of Dagverðará while the northern part reaches to Gufuskálar. The coast is varied and alive with birdlife during the breeding season. The coastal plain is mostly covered by lava that flowed from the glacier
Glacier
A glacier is a large persistent body of ice that forms where the accumulation of snow exceeds its ablation over many years, often centuries. At least 0.1 km² in area and 50 m thick, but often much larger, a glacier slowly deforms and flows due to stresses induced by its weight...

 or nearby crater
Volcanic crater
A volcanic crater is a circular depression in the ground caused by volcanic activity. It is typically a basin, circular in form within which occurs a vent from which magma erupts as gases, lava, and ejecta. A crater can be of large dimensions, and sometimes of great depth...

s. The lava is covered with moss
Moss
Mosses are small, soft plants that are typically 1–10 cm tall, though some species are much larger. They commonly grow close together in clumps or mats in damp or shady locations. They do not have flowers or seeds, and their simple leaves cover the thin wiry stems...

 but sheltered hollows can be found in many places, filled with a sizable variety of thriving, verdant plants. Snæfellsjökull has trails of lava and signs of volcanic activity clearly visible on its flanks. On its north side the Eysteinsdalur valley cuts a path up from the plain encircled by alluring steep mountains.

The geology of Snæfellsnes Peninsula is diverse with formations from almost every era of Iceland’s past. The more prominent formations in and around the National Park mainly date from geologically “modern” times back to the last ice age. The hills to the north of the glacier, around Bárðarkista, are of volcanic palagonite
Palagonite
Palagonite is an alteration product from the interaction of water with volcanic glass of chemical composition similar to basalt. Palagonite can also result from the interaction between water and basalt melt...

 tuff, formed during eruptions under the glacier or below the surface of the sea
Sea
A sea generally refers to a large body of salt water, but the term is used in other contexts as well. Most commonly, it means a large expanse of saline water connected with an ocean, and is commonly used as a synonym for ocean...

. Svalþúfa is most likely the eastern section of a crater that erupted under the sea, while Lóndrangar
Lóndrangar
Lóndrangar are a pair of single sharp and steep cliffs, or volcanic plugs of basalt, that have been hewn out from softer surrounding rock by erosion. At 75 m and 61 m respectively, they are a singular sight, rising above and outside the ocean front due east across from Malarrif and some...

 is a volcanic plug.

Lava
Lava
Lava refers both to molten rock expelled by a volcano during an eruption and the resulting rock after solidification and cooling. This molten rock is formed in the interior of some planets, including Earth, and some of their satellites. When first erupted from a volcanic vent, lava is a liquid at...

 is prominent on the landscape of this National Park with two types present – rough, jagged lava (ʻAʻā) and smooth, ropy lava (Pāhoehoe). Most of the lava emanated from the glacier, from the summit crater or from subsidiary craters on the flanks of the mountain. These lava formations are varied and fascinating, and there is a wealth of caves in the area. Visitors are advised not to enter caves unless accompanied by an experienced guide. Smaller volcanoes – Purkhólar, Hólahólar, Saxhólar and Öndverðarneshólar – are in the Park’s lowlands, surrounded by lava.

History and fishing

The adventurous Bárðar saga Snæfellsáss
Bárðar saga Snæfellsáss
Bárðar saga Snæfellsáss is one of the sagas of Icelanders. It takes place in Snæfellsnes in Iceland. The main character is Bárður Snæfellsás. He saved Ingjaldur from Ingjaldshvoll when he was in danger at sea....

 is the best known of the Icelandic Sagas that take place in this area. There are archaeological remains from the period of Iceland’s settlement around 1100 years ago – examples of which are the Forni-Saxhóll farm, Berutóftir and Írskubúðir. Near Gufuskálar there are a large number of dome-like structures of unknown origin, thought to be between 500 and 700 years old. They are probably the oldest known relics of the fishing industry in Scandinavia
Scandinavia
Scandinavia is a cultural, historical and ethno-linguistic region in northern Europe that includes the three kingdoms of Denmark, Norway and Sweden, characterized by their common ethno-cultural heritage and language. Modern Norway and Sweden proper are situated on the Scandinavian Peninsula,...

. A few people believe that these structures served instead as places of prayer
Prayer
Prayer is a form of religious practice that seeks to activate a volitional rapport to a deity through deliberate practice. Prayer may be either individual or communal and take place in public or in private. It may involve the use of words or song. When language is used, prayer may take the form of...

 or meditation
Meditation
Meditation is any form of a family of practices in which practitioners train their minds or self-induce a mode of consciousness to realize some benefit....

 for Irish
Ireland
Ireland is an island to the northwest of continental Europe. It is the third-largest island in Europe and the twentieth-largest island on Earth...

 monk
Monk
A monk is a person who practices religious asceticism, living either alone or with any number of monks, while always maintaining some degree of physical separation from those not sharing the same purpose...

s who may have once lived in the area.

Fishing
Fishing
Fishing is the activity of trying to catch wild fish. Fish are normally caught in the wild. Techniques for catching fish include hand gathering, spearing, netting, angling and trapping....

 flourished in the 13th century and the human population grew in the areas around the glacier
Glacier
A glacier is a large persistent body of ice that forms where the accumulation of snow exceeds its ablation over many years, often centuries. At least 0.1 km² in area and 50 m thick, but often much larger, a glacier slowly deforms and flows due to stresses induced by its weight...

. A church had been built on Ingjaldshóll hill before 1200 AD. The size of the church bears witness to the sizeable population of nearby towns and villages, at least during fishing season. Rich fishing grounds were nearby and the fishing stations were constructed where there was good access to the open sea. Dritvík is one of the best-known examples. It was one of the largest fishing stations in Iceland for a time, with 40–60 boats and 200–600 people employed there. Fishing declined on Snæfellsnes Peninsula during the 19th century because of changes in fishing techniques.

Villages close to the National Park include Hellissandur
Hellissandur
Hellissandur is a village and part of the Snæfellsbær municipality at the north-western tip of Snæfellsnes peninsula in western Iceland.Once an important fishing area, the village has experienced growth in tourism. The maritime museum has examples of the turf-roof houses once common across Iceland,...

, Rif
Rif
The Rif or Riff is a mainly mountainous region of northern Morocco, with some fertile plains, stretching from Cape Spartel and Tangier in the west to Ras Kebdana and the Melwiyya River in the east, and from the Mediterranean Sea in the north to the river of Wergha in the south.It is part of the...

 and Ólafsvík
Ólafsvík
Ólafsvík is a fishing town on the western end of the Snæfellsnes peninsula in Iceland., it had 1,010 inhabitants. It is situated in the county of Snæfellsnes- og Hnappadalssýsla, in the region of Vesturland and it is the administrative centre of the municipality of Snæfellsbær.-Overview:Because of...

. They were all fishing and commercial centres. Today, they are still flourishing fishing ports with lively communities.

In Culture

As mentioned above, Snæfellsjökull serves as the entrance to the subterranean journey in Jules Verne
Jules Verne
Jules Gabriel Verne was a French author who pioneered the science fiction genre. He is best known for his novels Twenty Thousand Leagues Under the Sea , A Journey to the Center of the Earth , and Around the World in Eighty Days...

's A Journey to the Center of the Earth.
It also figures prominently in Under the Glacier by Icelandic Nobel
Nobel Prize in Literature
Since 1901, the Nobel Prize in Literature has been awarded annually to an author from any country who has, in the words from the will of Alfred Nobel, produced "in the field of literature the most outstanding work in an ideal direction"...

 laureate Halldór Laxness
Halldór Laxness
Halldór Kiljan Laxness was a twentieth-century Icelandic writer. Throughout his career Laxness wrote poetry, newspaper articles, plays, travelogues, short stories, and novels...

.

See also

  • Geography of Iceland
    Geography of Iceland
    Iceland is a medium-sized island in the North Atlantic ocean. The island is located east of Greenland and immediately south of the Arctic Circle, atop the divergent boundary of the Mid-Atlantic Ridge in the North Atlantic Ocean. It lies about from New York City and from Scotland...

  • Glaciers of Iceland
    Glaciers of Iceland
    The glaciers and ice caps of Iceland cover 11.1% of the land area of the country and have a considerable impact on its landscape and meteorology...

  • Iceland plume
    Iceland plume
    The Iceland Plume is a postulated upwelling of anomalously hot rock in the Earth's mantle beneath Iceland. Its origin is thought to lie deep in the mantle, perhaps at the boundary between the core and the mantle at ca. 2880 km depth. Opinions differ as to whether seismic studies have imaged...

  • Lakes of Iceland
  • List of islands off Iceland
  • List of volcanoes in Iceland
  • Rivers of Iceland
  • Volcanism in Iceland
  • Waterfalls of Iceland
    Waterfalls of Iceland
    Iceland is unusually suited for waterfalls. This small island country has a north Atlantic climate that produces frequent rain or snow and a near-Arctic location that produces large glaciers, whose summer melts feed many rivers...


Additional sources

The source of this article is wikipedia, the free encyclopedia.  The text of this article is licensed under the GFDL.
 
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