Iceland's Reykjanes volcanism - tectonic setting
Fissure eruptions - while making dramatic fire-shows - threaten to overwhelm the town of Grindavik, on Iceland's Reykjanes peninsula. They testify to active splitting apart of the crust - part of a process that has opened the Atlantic ocean over the past 55-60 million years. Find out a about the tectonics, how tectonics makes the magma that erupts and how Icaland, and the World lives with these volcanoes. Part of The Shear Zone Channel.
#tectonics #Iceland #volcanoes #geohazards #geology
Пікірлер: 15
Brilliant video!
Very informative, and timely too. I've been watching the eruption there the last couple of days and this gives the context of it.
Thank you
Back in the early 70's< I spent hours in lecture theatres learning what you just told me. Well done!
Great video :) Looking at the sea floor map, is that a failed rift to the west of Greenland?
@robbutler2095
26 күн бұрын
Yes indeed - stopped rather than failed...rifting got as far as creating oceanic lithosphere ... so it appears with agers on the map.... worth pulling down the .kmz files and adding to GoogleEarth ... a great resource to play with...
@malcolmanon4762
26 күн бұрын
@@robbutler2095 ooo I'll go and look that up - ta muchly.
great job, thank you for answering one of my hottest questions. For what does these volcano activity is great to use? to use zero carbon "fuel" for our lives... thank you so much, greetings Crissy
@robbutler2095
26 күн бұрын
Yes - Iceland are fright on top of this - other "volcanic" nations so do more too....
"... recent fissures ... formed over the past decades ...", well that's quite a statement! - They are all much older = many 100's of years to many 1000's of years (many of which formed below the ice during the last ice age).
@robbutler2095
23 күн бұрын
Sorry if I've confused by my (geological) use of "recent") ...
Dreams of Scottish independence are millions of years old!
@Ian-vj5pv
23 күн бұрын
Organise and just do it in years
I’m a big fan of all your videos, but FYI it’s pronounced: RAKE-yahn-ace (more technically, /ˈreiːcaˌnɛːs/).
@robbutler2095
26 күн бұрын
Yes - apologies! Never expect a Brit to pronouce place-names correctly...