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Hekla

Index Hekla

Hekla, or Hecla, is a stratovolcano in the south of Iceland with a height of. [1]

150 relations: Apatite, Austur-Húnavatnssýsla, Þjórsá, Þjórsárdalur, Basaltic andesite, Búrfell (Þjórsárdal), Biodiversity, Birch, Blönduós, Bog, Boston, Brendan, Calc-alkaline magma series, Callaqui, Carbon dioxide, Caspar Peucer, Chasuble, Chile, Cinnamon roll, Cistercians, Clairvaux Abbey, Classical music, Cruiser, DBU Copenhagen, Deformation (engineering), Deformation (mechanics), Dendrochronology, Dense-rock equivalent, Der Spiegel, Divergent boundary, Dorothy Dunnett, Douglas DC-8, Drag queen, Dry matter, Earthquake, Easter, Eggert Ólafsson, Erosion, Eruption column, Explosive eruption, Eyjafjallajökull, Faroe Islands, First Schleswig War, Fishing trawler, Fissure vent, Fljótshlíð, Fluorine, Frost heaving, Geography of Iceland, Glacier, ..., Grímsey, Hamburg, Hekla 3 eruption, Heklina, Hekluskógar, Hell, Helsinki, Helsinki Philharmonic Orchestra, Herman Melville, HMS Hecla, Holocene, Hvítárvatn, Ice age, Iceland, Iceland hotspot, Iceland plume, Icelandair, Icelandic language, Icelandic sheep, Icing (food), Ignimbrite, Incendiary device, Is (novel), Jón Leifs, Joan Aiken, Judas Iscariot, Katla (volcano), Lahar, Laki, Landmannalaugar, Latin, Lava, Lava tube, Leif Segerstam, List of volcanoes in Iceland, Los Últimos Días, Mafic, Magma chamber, Mercalli intensity scale, Middle Ages, Moby-Dick, Moment magnitude scale, Moss, Mountaineering, Murrain, NASA, Oddi, Olivine, Ondine (record label), Orchestra, Orkney, Phenocryst, Plagioclase, Plinian eruption, Pumice, Pyroclastic flow, Pyroxene, Reforestation, Revista de la Asociación Geológica Argentina, Reykjavík, Rhyodacite, Rock ptarmigan, Royal Navy, Salmon, Science fiction, Scoria, Sedimentary rock, Shetland, Sicily, Silicon dioxide, Skagafjörður, Skeletal fluorosis, Skiing, Snowcat, Stratovolcano, Strombolian eruption, TAS classification, Tephra, Tholeiitic magma series, Thunderstorm, Timarit.is, Titanomagnetite, Transform fault, Trout, Tsunami, University of Edinburgh, Vatnafjöll, Viscosity, Volcanic ash, Volcanic bomb, Volcanic Explosivity Index, Volcanic rock, Volcano, Volcanology of Iceland, Volumetric flow rate, William Blake, Willow, Witchcraft, Xenolith, Ytri-Rangá. Expand index (100 more) »

Apatite

Apatite is a group of phosphate minerals, usually referring to hydroxylapatite, fluorapatite and chlorapatite, with high concentrations of OH−, F− and Cl− ions, respectively, in the crystal.

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Austur-Húnavatnssýsla

Austur-Húnavatnssýsla was a county of Iceland located in the Northwestern Region of the country.

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Þjórsá

Þjórsá is Iceland's longest river at 230 kilometers (about 143 miles).

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Þjórsárdalur

Þjórsárdalur is a valley in Árnessýsla county in Iceland that lies between mount Búrfell alongside the river Þjórsá to the east and mount Skriðufell to the west.

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Basaltic andesite

Basaltic andesite is a black volcanic rock.

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Búrfell (Þjórsárdal)

Búrfell (Þjórsárdal) is a basalt tuya located in Iceland.

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Biodiversity

Biodiversity, a portmanteau of biological (life) and diversity, generally refers to the variety and variability of life on Earth.

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Birch

A birch is a thin-leaved deciduous hardwood tree of the genus Betula, in the family Betulaceae, which also includes alders, hazels, and hornbeams.

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Blönduós

Blönduós is a town and municipality in the north of Iceland.

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Bog

A bog is a wetland that accumulates peat, a deposit of dead plant material—often mosses, and in a majority of cases, sphagnum moss.

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Boston

Boston is the capital city and most populous municipality of the Commonwealth of Massachusetts in the United States.

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Brendan

Saint Brendan of Clonfert (AD 484 – 577) (Irish: Naomh Bréanainn or Naomh Breandán; Brendanus; (heilagur) Brandanus), also referred to as "Brendan moccu Altae", called "the Navigator", "the Voyager", "the Anchorite", and "the Bold", is one of the early Irish monastic saints and one of the Twelve Apostles of Ireland.

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Calc-alkaline magma series

The calc-alkaline magma series is one of two main subdivisions of the subalkaline magma series, the other subalkaline magma series being the tholeiitic.

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Callaqui

Callaqui is a stratovolcano located in the Bío Bío Region of Chile.

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Carbon dioxide

Carbon dioxide (chemical formula) is a colorless gas with a density about 60% higher than that of dry air.

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Caspar Peucer

Caspar Peucer (pronounced,; January 6, 1525 – September 25, 1602) was a German reformer, physician, and scholar of Sorbian origin.

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Chasuble

The chasuble is the outermost liturgical vestment worn by clergy for the celebration of the Eucharist in Western-tradition Christian churches that use full vestments, primarily in Roman Catholic, Anglican, and Lutheran churches.

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Chile

Chile, officially the Republic of Chile, is a South American country occupying a long, narrow strip of land between the Andes to the east and the Pacific Ocean to the west.

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Cinnamon roll

A cinnamon roll (also cinnamon bun, cinnamon swirl, cinnamon Danish, and cinnamon snail) is a sweet roll served commonly in Northern Europe and North America.

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Cistercians

A Cistercian is a member of the Cistercian Order (abbreviated as OCist, SOCist ((Sacer) Ordo Cisterciensis), or ‘’’OCSO’’’ (Ordo Cisterciensis Strictioris Observantiae), which are religious orders of monks and nuns. They are also known as “Trappists”; as Bernardines, after the highly influential St. Bernard of Clairvaux (though that term is also used of the Franciscan Order in Poland and Lithuania); or as White Monks, in reference to the colour of the "cuccula" or white choir robe worn by the Cistercians over their habits, as opposed to the black cuccula worn by Benedictine monks. The original emphasis of Cistercian life was on manual labour and self-sufficiency, and many abbeys have traditionally supported themselves through activities such as agriculture and brewing ales. Over the centuries, however, education and academic pursuits came to dominate the life of many monasteries. A reform movement seeking to restore the simpler lifestyle of the original Cistercians began in 17th-century France at La Trappe Abbey, leading eventually to the Holy See’s reorganization in 1892 of reformed houses into a single order Order of Cistercians of the Strict Observance (OCSO), commonly called the Trappists. Cistercians who did not observe these reforms became known as the Cistercians of the Original Observance. The term Cistercian (French Cistercien), derives from Cistercium, the Latin name for the village of Cîteaux, near Dijon in eastern France. It was in this village that a group of Benedictine monks from the monastery of Molesme founded Cîteaux Abbey in 1098, with the goal of following more closely the Rule of Saint Benedict. The best known of them were Robert of Molesme, Alberic of Cîteaux and the English monk Stephen Harding, who were the first three abbots. Bernard of Clairvaux entered the monastery in the early 1110s with 30 companions and helped the rapid proliferation of the order. By the end of the 12th century, the order had spread throughout France and into England, Wales, Scotland, Ireland, Spain, Portugal, Italy, and Eastern Europe. The keynote of Cistercian life was a return to literal observance of the Rule of St Benedict. Rejecting the developments the Benedictines had undergone, the monks tried to replicate monastic life exactly as it had been in Saint Benedict's time; indeed in various points they went beyond it in austerity. The most striking feature in the reform was the return to manual labour, especially agricultural work in the fields, a special characteristic of Cistercian life. Cistercian architecture is considered one of the most beautiful styles of medieval architecture. Additionally, in relation to fields such as agriculture, hydraulic engineering and metallurgy, the Cistercians became the main force of technological diffusion in medieval Europe. The Cistercians were adversely affected in England by the Protestant Reformation, the Dissolution of the Monasteries under King Henry VIII, the French Revolution in continental Europe, and the revolutions of the 18th century, but some survived and the order recovered in the 19th century.

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Clairvaux Abbey

Clairvaux Abbey (Latin: Clara Vallis) is a Cistercian monastery in Ville-sous-la-Ferté, 15 km from Bar-sur-Aube, in the Aube department in northeastern France.

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Classical music

Classical music is art music produced or rooted in the traditions of Western culture, including both liturgical (religious) and secular music.

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Cruiser

A cruiser is a type of warship.

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DBU Copenhagen

DBU Copenhagen (DBU København) is the local governing body for association football and futsal in Copenhagen, Denmark.

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Deformation (engineering)

In materials science, deformation refers to any changes in the shape or size of an object due to-.

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Deformation (mechanics)

Deformation in continuum mechanics is the transformation of a body from a reference configuration to a current configuration.

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Dendrochronology

Dendrochronology (or tree-ring dating) is the scientific method of dating tree rings (also called growth rings) to the exact year they were formed in order to analyze atmospheric conditions during different periods in history.

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Dense-rock equivalent

Dense-rock equivalent is a volcanologic calculation used to estimate volcanic eruption volume.

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Der Spiegel

Der Spiegel (lit. "The Mirror") is a German weekly news magazine published in Hamburg.

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Divergent boundary

In plate tectonics, a divergent boundary or divergent plate boundary (also known as a constructive boundary or an extensional boundary) is a linear feature that exists between two tectonic plates that are moving away from each other.

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Dorothy Dunnett

Dorothy Dunnett (née Halliday, 25 August 1923 – 9 November 2001) was a Scottish historical novelist.

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Douglas DC-8

The Douglas DC-8 (also known as the McDonnell Douglas DC-8) is an American four-engine long-range narrow-body jet airliner built from 1958 to 1972 by the Douglas Aircraft Company.

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Drag queen

A drag queen is a person who usually dresses in hyper-feminized or gender non-conforming clothing, and often acts with exaggerated femininity and in feminine gender roles for the purpose of entertainment.

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Dry matter

The dry matter or dry weight is a measurement of the mass of something when completely dried.

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Earthquake

An earthquake (also known as a quake, tremor or temblor) is the shaking of the surface of the Earth, resulting from the sudden release of energy in the Earth's lithosphere that creates seismic waves.

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Easter

Easter,Traditional names for the feast in English are "Easter Day", as in the Book of Common Prayer, "Easter Sunday", used by James Ussher and Samuel Pepys and plain "Easter", as in books printed in,, also called Pascha (Greek, Latin) or Resurrection Sunday, is a festival and holiday celebrating the resurrection of Jesus from the dead, described in the New Testament as having occurred on the third day of his burial after his crucifixion by the Romans at Calvary 30 AD.

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Eggert Ólafsson

Eggert Ólafsson (December 1, 1726 – May 30, 1768) was an Icelandic explorer, writer and conservator of the Icelandic language.

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Erosion

In earth science, erosion is the action of surface processes (such as water flow or wind) that remove soil, rock, or dissolved material from one location on the Earth's crust, and then transport it to another location (not to be confused with weathering which involves no movement).

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Eruption column

An eruption column is a cloud of super-heated ash and tephra suspended in gases emitted during an explosive volcanic eruption.

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Explosive eruption

In volcanology, an explosive eruption is a volcanic eruption of the most violent type.

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Eyjafjallajökull

Eyjafjallajökull (English Island Mountain Glacier, is one of the smaller ice caps of Iceland, north of Skógar and west of Mýrdalsjökull. The ice cap covers the caldera of a volcano with a summit elevation of. The volcano has erupted relatively frequently since the last glacial period, most recently in 2010.

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Faroe Islands

The Faroe Islands (Føroyar; Færøerne), sometimes called the Faeroe Islands, is an archipelago between the Norwegian Sea and the North Atlantic, about halfway between Norway and Iceland, north-northwest of Scotland.

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First Schleswig War

The First Schleswig War (Schleswig-Holsteinischer Krieg) or Three Years' War (Treårskrigen) was the first round of military conflict in southern Denmark and northern Germany rooted in the Schleswig-Holstein Question, contesting the issue of who should control the Duchies of Schleswig and Holstein.

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Fishing trawler

A fishing trawler is a commercial fishing vessel designed to operate fishing trawls.

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Fissure vent

A fissure vent, also known as a volcanic fissure or eruption fissure, is a linear volcanic vent through which lava erupts, usually without any explosive activity.

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Fljótshlíð

Fljótshlíð is a rural area in the municipality of Rangárþing eystra in Southern Region, Iceland.

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Fluorine

Fluorine is a chemical element with symbol F and atomic number 9.

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Frost heaving

Frost heaving (or a frost heave) is an upwards swelling of soil during freezing conditions caused by an increasing presence of ice as it grows towards the surface, upwards from the depth in the soil where freezing temperatures have penetrated into the soil (the freezing front or freezing boundary).

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Geography of Iceland

Iceland is an island country at the confluence of the North Atlantic and Arctic Oceans, east of Greenland and immediately south of the Arctic Circle, atop the constructive boundary of the northern Mid-Atlantic Ridge about from Scotland and from New York City.

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Glacier

A glacier is a persistent body of dense ice that is constantly moving under its own weight; it forms where the accumulation of snow exceeds its ablation (melting and sublimation) over many years, often centuries.

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Grímsey

Grímsey is a small Icelandic island, off the north coast of the main island of Iceland, straddling the Arctic Circle.

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Hamburg

Hamburg (locally), Hamborg, officially the Free and Hanseatic City of Hamburg (Freie und Hansestadt Hamburg, Friee un Hansestadt Hamborg),Constitution of Hamburg), is the second-largest city of Germany as well as one of the country's 16 constituent states, with a population of roughly 1.8 million people. The city lies at the core of the Hamburg Metropolitan Region which spreads across four German federal states and is home to more than five million people. The official name reflects Hamburg's history as a member of the medieval Hanseatic League, a free imperial city of the Holy Roman Empire, a city-state and one of the 16 states of Germany. Before the 1871 Unification of Germany, it was a fully sovereign state. Prior to the constitutional changes in 1919 it formed a civic republic headed constitutionally by a class of hereditary grand burghers or Hanseaten. The city has repeatedly been beset by disasters such as the Great Fire of Hamburg, exceptional coastal flooding and military conflicts including World War II bombing raids. Historians remark that the city has managed to recover and emerge wealthier after each catastrophe. Situated on the river Elbe, Hamburg is home to Europe's second-largest port and a broad corporate base. In media, the major regional broadcasting firm NDR, the printing and publishing firm italic and the newspapers italic and italic are based in the city. Hamburg remains an important financial center, the seat of Germany's oldest stock exchange and the world's oldest merchant bank, Berenberg Bank. Media, commercial, logistical, and industrial firms with significant locations in the city include multinationals Airbus, italic, italic, italic, and Unilever. The city is a forum for and has specialists in world economics and international law with such consular and diplomatic missions as the International Tribunal for the Law of the Sea, the EU-LAC Foundation, and the UNESCO Institute for Lifelong Learning. In recent years, the city has played host to multipartite international political conferences and summits such as Europe and China and the G20. Former German Chancellor italic, who governed Germany for eight years, and Angela Merkel, German chancellor since 2005, come from Hamburg. The city is a major international and domestic tourist destination. It ranked 18th in the world for livability in 2016. The Speicherstadt and Kontorhausviertel were declared World Heritage Sites by UNESCO in 2015. Hamburg is a major European science, research, and education hub, with several universities and institutions. Among its most notable cultural venues are the italic and italic concert halls. It gave birth to movements like Hamburger Schule and paved the way for bands including The Beatles. Hamburg is also known for several theatres and a variety of musical shows. St. Pauli's italic is among the best-known European entertainment districts.

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Hekla 3 eruption

The Hekla 3 eruption (H-3) circa 1000 BC is considered the most severe eruption of Hekla during the Holocene.

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Heklina

Heklina is the stage name of Stefan Grygelko, who founded Mother (formerly Trannyshack) in 1996, is an American actor, drag queen, and entrepreneur in San Francisco.

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Hekluskógar

Hekluskogar is a reforesting project in Iceland near the volcano Hekla.

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Hell

Hell, in many religious and folkloric traditions, is a place of torment and punishment in the afterlife.

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Helsinki

Helsinki (or;; Helsingfors) is the capital city and most populous municipality of Finland.

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Helsinki Philharmonic Orchestra

The Helsinki Philharmonic Orchestra (Finnish: Helsingin kaupunginorkesteri, Swedish: Helsingfors stadsorkester) is a Finnish orchestra based in Helsinki.

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Herman Melville

Herman Melville (August 1, 1819 – September 28, 1891) was an American novelist, short story writer, and poet of the American Renaissance period.

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HMS Hecla

Seven ships of the Royal Navy have been named HMS Hecla, after the volcano Hekla in Iceland.

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Holocene

The Holocene is the current geological epoch.

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Hvítárvatn

Hvítárvatn (also known as Hvítárlón) is a lake in the Highlands of Iceland and the source of the glacial river Hvítá.

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Ice age

An ice age is a period of long-term reduction in the temperature of Earth's surface and atmosphere, resulting in the presence or expansion of continental and polar ice sheets and alpine glaciers.

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Iceland

Iceland is a Nordic island country in the North Atlantic, with a population of and an area of, making it the most sparsely populated country in Europe.

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Iceland hotspot

The Iceland hotspot is a hotspot which is partly responsible for the high volcanic activity which has formed the island of Iceland.

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Iceland plume

The Iceland plume is a postulated upwelling of anomalously hot rock in the Earth's mantle beneath Iceland.

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Icelandair

Icelandair is the flag carrier of Iceland, headquartered at Keflavík International Airport in Iceland.

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Icelandic language

Icelandic (íslenska) is a North Germanic language, and the language of Iceland.

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Icelandic sheep

The Icelandic sheep (sauðkindin) is a breed of domestic sheep.

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Icing (food)

Icing, often called frosting in the United States, is a sweet, often creamy glaze made of sugar with a liquid, such as water or milk, that is often enriched with ingredients like butter, egg whites, cream cheese, or flavorings.

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Ignimbrite

Ignimbrite is a variety of hardened tuff.

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Incendiary device

Incendiary weapons, incendiary devices or incendiary bombs are weapons designed to start fires or destroy sensitive equipment using fire (and sometimes used as anti-personnel weaponry), that use materials such as napalm, thermite, magnesium powder, chlorine trifluoride, or white phosphorus.

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Is (novel)

Is, known in the United States as Is Underground, is the eighth book in the series of novels by Joan Aiken normally called the Wolves Chronicles and sometimes the James III sequence.

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Jón Leifs

Jón Leifs (born Jón Þorleifsson on 1 May 1899 – 30 July 1968) was an Icelandic composer, pianist, and conductor.

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Joan Aiken

Joan Delano Aiken MBE (4 September 1924 – 4 January 2004) was an English writer specialising in supernatural fiction and children's alternative history novels.

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Judas Iscariot

Judas Iscariot (died AD) was a disciple and one of the original Twelve Apostles of Jesus Christ.

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Katla (volcano)

Katla is a large volcano in southern Iceland.

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Lahar

A lahar (from wlahar) is a violent type of mudflow or debris flow composed of a slurry of pyroclastic material, rocky debris and water.

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Laki

Laki or Lakagígar (Craters of Laki) is a volcanic fissure in the south of Iceland, not far from the canyon of Eldgjá and the small village of Kirkjubæjarklaustur.

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Landmannalaugar

Landmannalaugar is a place in the Fjallabak Nature Reserve in the Highlands of Iceland.

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Latin

Latin (Latin: lingua latīna) is a classical language belonging to the Italic branch of the Indo-European languages.

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Lava

Lava is molten rock generated by geothermal energy and expelled through fractures in planetary crust or in an eruption, usually at temperatures from.

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Lava tube

A lava tube is a natural conduit formed by flowing lava which moves beneath the hardened surface of a lava flow.

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Leif Segerstam

Leif Selim Segerstam (born 2 March 1944) is a Finnish conductor, composer, violinist, violist and pianist, especially known for writing 319 symphonies as of April 2018, along with other works in his extensive œuvre.

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List of volcanoes in Iceland

This list of volcanoes in Iceland includes 130 active and extinct volcanic mountains, of which 18 have erupted since human settlement of Iceland began circa 900 CE.

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Los Últimos Días

Los Últimos Días (also known The Last Days) is a 2013 Spanish science fiction thriller film directed by David and Àlex Pastor.

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Mafic

Mafic is an adjective describing a silicate mineral or igneous rock that is rich in magnesium and iron, and is thus a portmanteau of magnesium and '''f'''err'''ic'''.

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Magma chamber

A magma chamber is a large pool of liquid rock beneath the surface of the Earth.

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Mercalli intensity scale

The Mercalli intensity scale is a seismic intensity scale used for measuring the intensity of an earthquake.

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Middle Ages

In the history of Europe, the Middle Ages (or Medieval Period) lasted from the 5th to the 15th century.

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Moby-Dick

Moby-Dick; or, The Whale is an 1851 novel by American writer Herman Melville.

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Moment magnitude scale

The moment magnitude scale (MMS; denoted as Mw or M) is one of many seismic magnitude scales used to measure the size of earthquakes.

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Moss

Mosses are small flowerless plants that typically grow in dense green clumps or mats, often in damp or shady locations.

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Mountaineering

Mountaineering is the sport of mountain climbing.

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Murrain

Murrain is an antiquated term for various infectious diseases affecting cattle and sheep.

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NASA

The National Aeronautics and Space Administration (NASA) is an independent agency of the executive branch of the United States federal government responsible for the civilian space program, as well as aeronautics and aerospace research.

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Oddi

Oddi is a town and church at Rangárvellir in Rangárvallasýsla, Iceland.

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Olivine

The mineral olivine is a magnesium iron silicate with the formula (Mg2+, Fe2+)2SiO4.

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Ondine (record label)

Ondine is a Finnish classical record label founded in 1985 in Helsinki, Finland, where the company is still based, and today offers an extremely eclectic catalogue of both contemporary Finnish music, as well as recordings with major Finnish and international artists.

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Orchestra

An orchestra is a large instrumental ensemble typical of classical music, which mixes instruments from different families, including bowed string instruments such as violin, viola, cello and double bass, as well as brass, woodwinds, and percussion instruments, each grouped in sections.

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Orkney

Orkney (Orkneyjar), also known as the Orkney Islands, is an archipelago in the Northern Isles of Scotland, situated off the north coast of Great Britain.

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Phenocryst

1 euro coin (diameter 2.3 cm) for scale. A phenocryst is an early forming, relatively large and usually conspicuous crystal distinctly larger than the grains of the rock groundmass of an igneous rock.

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Plagioclase

Plagioclase is a series of tectosilicate (framework silicate) minerals within the feldspar group.

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Plinian eruption

Plinian eruptions or Vesuvian eruptions are volcanic eruptions marked by their similarity to the eruption of Mount Vesuvius in 79 AD, which destroyed the ancient Roman cities of Herculaneum and Pompeii.

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Pumice

Pumice, called pumicite in its powdered or dust form, is a volcanic rock that consists of highly vesicular rough textured volcanic glass, which may or may not contain crystals.

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Pyroclastic flow

A pyroclastic flow (also known as a pyroclastic density current or a pyroclastic cloud) is a fast-moving current of hot gas and volcanic matter (collectively known as tephra) that moves away from a volcano reaching speeds of up to.

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Pyroxene

The pyroxenes (commonly abbreviated to Px) are a group of important rock-forming inosilicate minerals found in many igneous and metamorphic rocks.

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Reforestation

Reforestation is the natural or intentional restocking of existing forests and woodlands (forestation) that have been depleted, usually through deforestation.

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Revista de la Asociación Geológica Argentina

The Revista de la Asociación Geológica Argentina is a peer-reviewed scientific journal published by the Asociación Geológica Argentina.

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Reykjavík

Reykjavík is the capital and largest city of Iceland.

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Rhyodacite

Rhyodacite is an extrusive volcanic rock intermediate in composition between dacite and rhyolite.

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Rock ptarmigan

The rock ptarmigan (Lagopus muta) is a medium-sized gamebird in the grouse family.

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Royal Navy

The Royal Navy (RN) is the United Kingdom's naval warfare force.

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Salmon

Salmon is the common name for several species of ray-finned fish in the family Salmonidae.

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Science fiction

Science fiction (often shortened to Sci-Fi or SF) is a genre of speculative fiction, typically dealing with imaginative concepts such as advanced science and technology, spaceflight, time travel, and extraterrestrial life.

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Scoria

Scoria is a highly vesicular, dark colored volcanic rock that may or may not contain crystals (phenocrysts).

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Sedimentary rock

Sedimentary rocks are types of rock that are formed by the deposition and subsequent cementation of that material at the Earth's surface and within bodies of water.

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Shetland

Shetland (Old Norse: Hjaltland), also called the Shetland Islands, is a subarctic archipelago of Scotland that lies northeast of Great Britain.

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Sicily

Sicily (Sicilia; Sicìlia) is the largest island in the Mediterranean Sea.

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Silicon dioxide

Silicon dioxide, also known as silica (from the Latin silex), is an oxide of silicon with the chemical formula, most commonly found in nature as quartz and in various living organisms.

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Skagafjörður

Skagafjörður is a deep bay in northern Iceland.

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Skeletal fluorosis

Skeletal fluorosis is a bone disease caused by excessive accumulation of fluoride in the bones.

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Skiing

Skiing can be a means of transport, a recreational activity or a competitive winter sport in which the participant uses skis to glide on snow.

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Snowcat

A snowcat is an enclosed-cab, truck-sized, fully tracked vehicle designed to move on snow.

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Stratovolcano

A stratovolcano, also known as a composite volcano, is a conical volcano built up by many layers (strata) of hardened lava, tephra, pumice and ash.

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Strombolian eruption

Strombolian eruptions are relatively mild blasts with a volcanic explosivity index of about 1 to 3.

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TAS classification

The TAS classification can be used to assign names to many common types of volcanic rocks based upon the relationships between the combined alkali content and the silica content.

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Tephra

Tephra is fragmental material produced by a volcanic eruption regardless of composition, fragment size, or emplacement mechanism.

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Tholeiitic magma series

The tholeiitic magma series, named after the German municipality of Tholey, is one of two main magma series in igneous rocks, the other being the calc-alkaline series.

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Thunderstorm

A thunderstorm, also known as an electrical storm, lightning storm, or thundershower, is a storm characterized by the presence of lightning and its acoustic effect on the Earth's atmosphere, known as thunder.

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Timarit.is

Timarit.is (also known as Tímarit.is, Tidarrit.fo and Aviisitoqqat.gl) is an open access digital library run by the National and University Library of Iceland which hosts digital editions of newspapers and magazines published in Iceland, Faroe Islands and Greenland as well as publications in their languages elsewhere, such as Canada which had a large influx of Icelanders in the late 19th and early 20th centuries.

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Titanomagnetite

Titanomagnetite is a mineral containing oxides of titanium and iron.

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Transform fault

A transform fault or transform boundary is a plate boundary where the motion is predominantly horizontal.

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Trout

Trout is the common name for a number of species of freshwater fish belonging to the genera Oncorhynchus, Salmo and Salvelinus, all of the subfamily Salmoninae of the family Salmonidae.

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Tsunami

A tsunami (from 津波, "harbour wave"; English pronunciation) or tidal wave, also known as a seismic sea wave, is a series of waves in a water body caused by the displacement of a large volume of water, generally in an ocean or a large lake.

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University of Edinburgh

The University of Edinburgh (abbreviated as Edin. in post-nominals), founded in 1582, is the sixth oldest university in the English-speaking world and one of Scotland's ancient universities.

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Vatnafjöll

Vatnafjöll is a long, wide basaltic fissure vent system that is located southeast of Hekla, Iceland.

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Viscosity

The viscosity of a fluid is the measure of its resistance to gradual deformation by shear stress or tensile stress.

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Volcanic ash

Volcanic ash consists of fragments of pulverized rock, minerals and volcanic glass, created during volcanic eruptions and measuring less than 2 mm (0.079 inches) in diameter.

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Volcanic bomb

A volcanic bomb is a mass of molten rock (tephra) larger than 64 mm (2.5 inches) in diameter, formed when a volcano ejects viscous fragments of lava during an eruption.

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Volcanic Explosivity Index

The Volcanic Explosivity Index (VEI) is a relative measure of the explosiveness of volcanic eruptions.

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Volcanic rock

Volcanic rock (often shortened to volcanics in scientific contexts) is a rock formed from magma erupted from a volcano.

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Volcano

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.

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Volcanology of Iceland

The volcanoes of Iceland include a high concentration of active ones due to Iceland's location on the mid-Atlantic Ridge, a divergent tectonic plate boundary, and its location over a hot spot.

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Volumetric flow rate

In physics and engineering, in particular fluid dynamics and hydrometry, the volumetric flow rate (also known as volume flow rate, rate of fluid flow or volume velocity) is the volume of fluid which passes per unit time; usually represented by the symbol (sometimes). The SI unit is m3/s (cubic metres per second).

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William Blake

William Blake (28 November 1757 – 12 August 1827) was an English poet, painter, and printmaker.

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Willow

Willows, also called sallows, and osiers, form the genus Salix, around 400 speciesMabberley, D.J. 1997.

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Witchcraft

Witchcraft or witchery broadly means the practice of and belief in magical skills and abilities exercised by solitary practitioners and groups.

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Xenolith

A xenolith ("foreign rock") is a rock fragment that becomes enveloped in a larger rock during the latter's development and solidification.

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Ytri-Rangá

Ytri-Rangá is a river in Iceland popular for salmon fishing.

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Hekla 4, Hekla volcano, Mount Hekla, Mt. Hekla.

References

[1] https://en.wikipedia.org/wiki/Hekla

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