
Þróun eldstöðvakerfa
Authored by Þórhallur Halldórsson
Science
12th Grade
Used 9+ times

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13 questions
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1.
DRAG AND DROP QUESTION
1 min • 4 pts
Ef (a) , sprungur, brotalínur, siggengi og (b) á (c) eru skoðuð í samhengi kemur í ljós að þau mynda aflöng belti sem raða sér eftir skástígu kerfi um endilöng gosbeltin. Þessi belti hafa verið nefnd (d) eða gosreinar ef í þeim verða eldgos.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Í miðju sprungureinar er virknin oftast mest og hafa í mörgum þeirra hlaðist upp eldfjöll. Slík fjöll kallast?
Megineldstöðvar
Eldfjöll
Dyngjur
Móbergsstapar
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Flatir hraunskildir myndaðir úr þunnfljótandi kviku
Megineldstöðvar
Eldfjöll
Dyngjur
Móbergsstapar
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Undir megineldstöð er að finna...?
...kvikuhólf
...möttulstrók
...deighvel
...siggengi
5.
DRAG AND DROP QUESTION
1 min • 5 pts
Öll (a) sem kemur upp í eldgosum á sömu (b) virðist vera efnafræðilega skyld. Þannig er t.d. hlutfall ákveðinna (c) einkennandi fyrir kviku sem kemur upp á einni sprungurein og annað hlutfall einkennir næstu . Það hefur leitt til þeirrar hugmyndar að ein (d) (e) tilheyri hverri sprungurein.
6.
MATCH QUESTION
1 min • 5 pts
Paraðu saman
Samrek meginlands-skorpa
Eyjaröð
Flekaskil við möttulstrók
Samrek hafsbotns og meiginlands
Samrek hafsbotna
7.
DRAG AND DROP QUESTION
1 min • 5 pts
Kvikuhólf undir (a) hafa tilhneigingu til að bræða sér leið upp á við með tímanum. Þegar þau eru komin ofarlega í jarðskorpunni geta þau tæmst í (b) . Það gerist ef kvikan fær auka kraft þegar ný kvika flæðir inn í (c) . Kvikan ryður frá sér (d) fyrir ofan sig og brýst út. Þá léttir skyndilega þrýstingum af henni og (e) verður í öllum kvikuhólfinu.
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