Posted on 09/15/2022 4:24:01 PM PDT by BenLurkin
Recent Icelandic rifting events have illuminated the roles of centralized crustal magma reservoirs and lateral magma transport, important characteristics of mid-ocean ridge magmatism. A consequence of such shallow crustal processing of magmas is the overprinting of signatures that trace the origin, evolution and transport of melts in the uppermost mantle and lowermost crust.
Here we present unique insights into processes occurring in this zone from integrated petrologic and geochemical studies of the 2021 Fagradalsfjall eruption on the Reykjanes Peninsula in Iceland.
Geochemical analyses of basalts erupted during the first 50 days of the eruption, combined with associated gas emissions, reveal direct sourcing from a near-Moho magma storage zone. Geochemical proxies, which signify different mantle compositions and melting conditions, changed at a rate unparalleled for individual basaltic eruptions globally. Initially, the erupted lava was dominated by melts sourced from the shallowest mantle but over the following three weeks became increasingly dominated by magmas generated at a greater depth.
This exceptionally rapid trend in erupted compositions provides an unprecedented temporal record of magma mixing that filters the mantle signal, consistent with processing in near-Moho melt lenses containing 107–108 m3 of basaltic magma. Exposing previously inaccessible parts of this key magma processing zone to near-real-time investigations provides new insights into the timescales and operational mode of basaltic magma systems.
(Excerpt) Read more at nature.com ...
Latest data as of yesterday...
https://jardvis.hi.is/is/eldgos-vid-litla-hrut-nidurstodur-maelinga-17-juli
Darn, you beat me to it. LOL. I had to scroll down the page to see if Dr Evil had been posted yet.
Folks may have to back it up to watch since the livestream is completed.
Rely worth the watch.
I’ve probably watched that collapse about 50 times now.
Magma my @ss:
I hope they got all the correct permits to release all of that lava.
The Icelandic courts stopped a highway project a few years ago due to the adverse impacts on the local elf population.
Check out the cone. It’s got quite the upset tummy. New spew started about 9:49 local time.
It’s running at both ends now.
Oh, jeez, they’re closing the site again at 6 PM local time today thanks to the idjits.
FWIW, I think allowing a few of them to self-immolate on live stream would do more good than all the heavy handed government crap.
Is it just me...
Or is that cone starting to look like a twice baked potato?!
That is the weirdest looking thing I have ever seen.
Our favorite volcano, bless its heart, has developed an...ahem...personal problem.
You know that feeling you get when you see that the toilet is about to overflow...
🤣🤣🤣
Well, that’s not its particular problem right now.
At the moment it’s got a bad case of flatulence.
It does look like there are now holes spread around instead of just on one side.
Hows about we tell the global warming types that Lil Rooter is f@rting out kilotons of baaaaad gases and they’d better go plug those holes!
BTW, if you want to see sone awesome drone footage, check out the YouTube channel of a gent named Isak Finnbogason. He’s live right now, I think. His work is incredible and gives a great perspective that can’t be gotten from the fixed cameras.
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