Tsarin dutsen wuta na Hofsjökull

**Tsarin dutsen wuta na Hofsjökull** (kuma tsarin dutsen mai wuta ya Hofsjöull-Kerlingarfjöll) ya ƙunshi mafi girman dutsen wuta mai aiki a Iceland. An kira shi Hofsjökull (Icelandic: "gidan Haikali haikalin", furcin Icelandic: [] i), bayan kankara na wannan sunan. Tsarin yana a yammacin Highlands na Iceland da arewacin dutsen wuta na tsakiya na Kerlingarfjöll Icelandic pronunciation: [ˈchɛ (r) tliŋkarˌfjœtl] i), wanda yawanci ana ɗaukarsa a matsayin wani ɓangare na wannan tsarin dutsen wuta.

## Ayyuka
Tsarin volcanic yana da ga Iceland, ƙananan aiki.] Akwai wurare masu zafi na geothermal da ke da alaƙa da tsakiyar Hofsjökull dutsen mai fitad da wuta, arewacin fissure swarm, da Kerlingarfjöll zuwa kudu maso gabas gefen Hofsjökull tsakiyar volcano caldera. An sami girgizar ƙasa a cikin lokacin 1996 zuwa 2013 a gefen yamma da arewa na babban dutsen mai aman wuta na Hofsjökull, wanda ya kai har zuwa gungun fissure na arewa amma kawai girgizar ƙasa keɓe ƙarƙashin Kerlingarfjöll zuwa kudu.[8]. Fashewar fashewa ta ƙarshe ta faru ne a arewacin tsaunin Hofsjökull tsakanin shekaru 3000 zuwa 4500 da suka wuce.

Dutsen tsaunukan tsakiyar good biyu manyan manyan ne. Hofsjökull baki yashi 20-30 km (12-19 mi) a diamita. Daga Hofsjökull, fissure na bayyanar fissure swarms ya fito daga NNW-SSE kuma ana kiransa SW-NE. Rikicin ya tashi ne daga Nisan mai nisan kilomita 40 (mita 25).  Babban Volcanic Caldera na Hofsjökull yana da nisan kilomita 6 - 7 (3.7 - 4.3 mi) sama da matakin teku da 600 m (2,000 ft).  Tsawon tsaunuka na caldera ya kai tsayin 1,628 m (5,341 ft) amma bakin ruwa ya tashi zuwa tsayin 1,650 m (5,410 ft) kuma Taswirar ƙasa yana so ya kai zurfin 700 m (2,300 ft).  Aquatic lava in the Bayan ƙan hangena is a good source of water, the result of the Live Babban Dutsen Dutsen Hofsjökull. Kerlingarfjöll, mafi ƙasƙanci na tsaunuka, yana da kusan kilomita 15-20 (9.3–12.4 mi) a diamita.

## Ilimin ƙasa
Dutsen tsaunuka na tsakiya suna da basalt tholeiite da abubuwan rhyolite. A game da Dutsen Kerlingar wanda ba ya rufe da 600 m (2,000 ft) na kankara, ana samun rhyolite kusa da tsakiyar calderas guda biyu. Kerlingarfjöll, yana tsakanin 68 da 350 shekaru dubu A game da Hofsjökull basaltic hyaloclastite adibas da rhyolite outcrops a margins na glacier, a kan wasu daga cikin Nunataks gabas da caldera, kuma a Arnarfell kololuwa. Fissure vents da suka fashe basalts sun zama tuya zuwa kudu.

The largest tholeiite basalt lava flow that originates in the southern fissure swarm to the south of Hofsjökull is the 4500 to 7000 years old Illahraun lava, with a composition distinct from Kerlingarfjöll (to its south–west) and covers about .

Fissure swarms da radial tsarin kutsawar dike da alama suna haskakawa daga babban dutsen mai aman wuta na Hofsjökull yana nuna cewa filin damuwa ne na gida. Zuwa kudu nisan kilomita 6 (3.7 mi) nisan yammacin ɓangaren ɓarkewar ɓarke ​​yana da yawa galibi galibin kurakuran tashin hankali waɗanda ke daidaitawa a 30 ° waɗanda ake iya gano su yayin da suke faɗaɗa tsarin dutsen dutsen Langjökull shekaru 10,000 da suka gabata asalin garkuwar Kjalhraun lava. Yankin kudu maso yamma na kudanci fissure swarm yana daidaitawa a 40 ° kuma bayan inuwa zuwa kudu wanda tsohuwar Kerlingarfjöll ta samar da sauran gungun fissure na kudanci yana da nisan kilomita 9 (5.6 mi).  Yankin fissure na arewa yana karkata watakila a -10° daga arewa tare da shimfidawa mai faɗi

### Tectonics
Tsarin volcanic na Hofsjökull yana gefen arewa maso gabashin Hreppar microplate. An rarraba shi da kasancewa a cikin bel ɗin tsakiyar Iceland wanda ke haɗa yankin dutsen mai aman wuta na Yamma zuwa mahaɗar yankin tsaunuka na Arewa da yankin tsaunukan Gabas. Moho yana da zurfin kilomita 30 (mita 19) a ƙarƙashin tsaunin Kerlingar kuma a arewa maso gabas na tsarin yana da zurfin kilomita 40 (25 mi). Hreppar microplate yana kusa da tsarin dutsen Hofsjökull. Wannan yana nuna ta hanyar lissafi cewa saurin farantin dangi a fadin wannan yanki karami ne wanda masana ilimin kasa sukan yi hasashen cewa yana nufin karamin girgizar kasa ko volcanic. Duk da haka, tsarin ya kuma wuce yankin arewa maso gabas na yanzu na yankin Iceland..

## Gilashin ƙanƙara
The icecap covers an area of about , with the icecap top being .