Sheepy Dalek – Name that Lava IV!

Last week I was too lazy. I learned to make it far more tricky so that google searches don’t help. I got a lot of nice pictures from the crowd that I will use. Please keep on sending them in.

The Score is:
2 Talla
1 Schteve
1 Jim
1 Luisport
1 Heather B
1 Birgit

Photograph by our own Ursula. Click on the pic to get a larger version.

Here is this weeks instalment. 1 point for the volcano, 1 point for the vent, and 1 point for the lavas. To get the lava point you need to give more than one, and describe them. So, 3 points to grab!

Sissels video

Sissel has made a video of my last post on Bob. Check it out!

Spica

As you might have noticed there are 3 new Dragons (Moderators) around keeping things tidy. So, all say hello to Rockjanitor, Shadow and Spica.

Spica has been tidying up the pages above, and now wants you all to help fill in links about all things volcanic under the new page entitled “Treasury”. This is the new treasure throve of links to various sites with more information. So put in all the links you have up there. It will help the newcomers as they arrive a lot.

CARL

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388 thoughts on “Sheepy Dalek – Name that Lava IV!

  1. I’m away from home for the next few days, but will be popping in to catch up when I can. Good weekend to all.

  2. Ok, my turn.
    If Etna doesn’t erupt tonight, it will be me who is eating his hat.
    I mean, all night (April fools included). 🙂

  3. OMG
    Richard Branson launches journeys to the centre of the Earth
    Only 500 people have been to space, only three people have been to the bottom of the ocean, but no one has ever attempted to journey to the core of an active volcano. Until now.
    Using patented carbon-carbon materials pioneered for deep space exploration, Virgin is proud to announce a revolutionary new vehicle, VVS1, which will be capable of plunging three people into the molten lava core of an active volcano.
    more at http://www.virgin.com/travel/news/richard-branson-launches-journeys-to-the-centre-of-the-earth-through-virgin-volcanic

    *this is dated the 31st, but I’m keeping in mind that tomorrow is April 1st…

    • I wonder what time zone he is on?
      Definitly a april fools.

      “Republic of Vanuatu
      Richard Branson launches journeys to the centre of the Earth through Virgin Volcanic. Academy Award winning actor Tom Hanks to join first expedition.”
      Yeah, right… Tom Hanks is a scientologist so he believs the earth is flat…

    • Definitely April fools.
      They aren’t yet even able to safely dip a cauldron to collect lava from shallow depths… hilarious, indeed… 🙂

  4. Something to watch while waiting for Etna:

    Plenty of stuff for thought there: oldest rocks on the planet, rifting and opening up of Atlantic that moved Scotland away from Greenland, slip fault like the San Andreas one, glaciation and its effects and even dinosaurs! 🙂
    Seriously though, I had no idea Scotland was geologically this complicated!

    • no idea Scotland was geologically this complicated
      My dear Ursula………….Scotland is magnificently complicated!!!
      Plus the Achanaris Fish Bed!!! Devonian superb!!!
      Devonian/Carboniferous/Tertiary volcanoes
      lower Cambrian trilobites related to those found in the US
      OH where do I stop….graptolites, Rhynie Chert, mylonite, garnet schist, vents Loch ness monster, whisky haggis Arbroath Smokies, agates……….
      🙂 🙂

      • Well, go and laugh at me, but you don’t learn that when you study maths and computer science… 😛
        At least now I know.

        • Now we could arrange a field trip………………?
          There’s lots in the NW highlands I’ve never seen or visited……
          Have you seen the film Local Hero – a lot of the beach scenes were filmed in West Scotland near Isle of Skye, but the harbour scenes were in NE Scotland……. films artistic licence, mmm? {-)
          Ah Skye – gabbro, granite, dolerite, u/basics, magnificent amygdaloidal lavas – + gorgeous minerals, ammonites, sea otters………..bliss (except for midges and RAF)….

          • I was there last year on a solo camping holiday – that’s where I discovered the amazing rocks, although my nephew had told me it was famous. Stunning beaches and great campsites. I went from Smoo Caves (limestone) down to Torridon and then on to Skye. Weather can be a bit iffy and the wee midge has to be experienced to be understood! Lots of seafood places etc. Heaven on earth!

          • Loved the film Local Hero – and Skye is so amazingly varied geologically – but when is the best time to visit Scotland, and have warm weather and no wee beasties? Is such a combination possible???

          • @ Alyson : Best months to avoid the wee beasties and possibly get good weather (!) are May or September. I was there early September last year and had good weather to start with but there was a steady breeze so no bites, then a couple of gales set in. The year before was hot and still so thousands of bites. The very far north-west doesn’t have as many midges as the Highlands proper. Any time of year can be stunning or horrendous really. Last week they had a record breaking heatwave, this week snow is forecast! 😀

      • The North West Highlands have their own UNESCO Geopark – the Moine Thrust and so on – amazing stuff. Mmmmm! Lewisian Gneiss! 😉

        • That’s one thing I’ve never seen in the flesh, nor the Moine Thrust and mylonite, Durness Limestone, Scourian Dykes………….Stac Polliadh too much now tho’ ….shame…. 😦

    • I put a link about the subject on the 26th of March 12 in Gems about a new research proves existence of super volcano beneath Loch Ness, would complement the video

  5. Not an April joke. Today we had again some kind of sulphur smell coming from Hengill, now reaching all the way to my house, which is about 20km east, due to some wind (not strong wind, so its unusual). Second time, in about a month, and about third time within the 2 years I am here.

  6. Mayday – which is the best webcam for Etna please anyone – can’t seem to get any to work stream-wise?

  7. Tremor has just plummeted. No worries, it will be rising again, but it may take hours.
    Er… Carl… about the sauce you’re talking about…

  8. Hello everyone. I know I keep on starting discussions, then just leaving them. But I read everything you all write back to me. It’s just that I have a kid, and he’s kinda taking loads of time:)

    When thats said. I want to ask if anyone of you have any idea whats going on inside Hekla? There is a big change in both tremors and strain, and this change has been going on for the last week or so. I know there has been a lot of talk about Hekla, because of the quakes the other day, but I think there is more signs than just quakes, and that something is cooking in there.

    So, if any of you have any data from 1-5 months back, and can compare it to recent or occuring at the moment.. And just please go through it really good. I promise there is something going on.

    • I do keap the data.
      There are some changes, but not so that it points towards an eruption.
      Currently the magma is moving out in a westsouthwest direction. There is something happening around Saurbaer that is rather hard to understand, and then we had a bit of activity at Haukadalur. But inside Hekla itself I would say that the values are lower compared to before. So, right not nothing points to an eruption.
      Ask me again tomorrow and I might answer differently 🙂

    • Nope, me too – “Fatal error: Allowed memory size of 134217728 bytes exhausted…(etc)”

      Who’d have thought it, INGV on the wrong side of Anonymous!

      • 134 217 728
        134 Megabytes of memory? When the hell did they build a server with that little memory???
        I mean… Cave-men had larger server-space in their sacks with seven skulls.

  9. Etna and Venus (above the mountain, on the left), from RadioStudio cam, click on photo for a larger version:

  10. Hard to tell without the INGV data, but visually it looks as if activity is picking up right now.

  11. Alan C and all who posted about NW Scotland. Thanks. I’m on a filming and photography gig up on Stac Pollaidh Monday to Wednesday this week. Any more you can tell me about the formation of that magnificent little peak and the surroundings I’d be most grateful. Where might I find a good scar of Lewissian Gneiss(SP) nearby? Particularly interested in how the sandstone pinnacles came to be…erosion I guess.

    • At Knockan Crag on the A385 (just beyond the turn to Stac Pollaidh) there’s an interpretive centre and trails showing all the rock types and it looks towards the Moine Thrust so good for pictures (also glen is good for seeing effects of recent glaciation). There’s a lot of info at the Visitor Centre at Lochinver. Good campsites at Clachtoll and Achiltibuie. Assynt and Coigach are Lewissian Gneiss formed between 2900 and 1700 million years ago. Extraordinarily old landscape of tiny lochans: the road from Lochinver past Clachtoll to Stoer and Drumbeg (B869) is good for looking at it. The Torridonian Sandstone was laid down over the Gneiss between 1000 and 750 million years ago. The mountains/hills of Assynt are made of this rock which has been eroded away – by wind and ice. This part of Scotland was formed when it was part of North America. I’ll bet Alan C can explain it much better. 🙂

        • @ Ursula : Old Red Sandstone is actually much younger than Torridonian sandstone by about 600 million years. The documentary starts after the Moine Thrust. Scotland really does have some amazing geology! 😀

  12. Carl and to Icelanders readers, I am trying to start studying soil profiles here in Iceland which contain different ash layers, which vary from place to place.

    Since tephrochronology is a complicate issue, I first need to know which color is the ash from each Icelandic volcano (of course color also changes sometimes with eruptions).

    I already know that Hekla has light colored whitish to light brown tephra, Eyjafjallajokull has grey color, Katla black, Grimsvotn brown color, Askja also light colored tephra.

    Does anyone know the color of the ash for the following volcanoes or eruptions:
    Bardarbunga
    Veidivotn
    Torfajokull (I guess its light colored)
    Hengill
    Oraefajokull
    Kverfjoll

  13. One of the types of rock which is peculiar to Scotland is Volcanic Slate.
    This is a metamorphosed bed of compressed volcanic ash found only in a small area South East of Edinburgh, near the ancient settlement of Invertroll.
    Volcanic ash is composed of minerals and volcanic glass and varies in colour ( See irpsit’s post )
    Under pressure, the ash is compressed to form Slate. As a biologist this volcanic slate holds vital clues to the flora and fauna that existed around the ancient Scottish volcanoes 350 million years ago.
    As the ash fell it covered plants, insects and small animals such as cockroaches and small reptiles.
    Invertroll Slate is highly prized by architects as a roofing material for the small outbuildings of large castles that house the drums that led the clans into battle. These small rounded rooms are called Drumlins . They are always situated away from the main buildings so that the sound of the drummers practising was muffled to the ears of the Kings and nobility.
    http://www.rampantscotland.com/castles/blcastles_craigievar.htm
    Another feature of the Invertroll area are small caves, the remnants of volcanic tubes formed by the cooling magma as it flowed from the volcano. Similar to those seen on El Hierro’s coastline.
    These are called Tír na nÓg and are thought locally to be the gates to “The Other World”.
    Interestingly the Discovery Channel is planning an exploration of these during the summer of 2012.
    This should be of interest to Carl and Lurking and all those of mathematical and physical bent. Due to the anomalies found in the geomagnetic structure of the atoms making up the volcanic slates It is thought by some scientists to point towards the explanation of stories of a parallel universe and even more exciting to us biologists evidence may be found of the The Little People (Wee folk) who legends say are the dispossessed early tribes of the British Isles. They faded away into uninhabited places, growing smaller and smaller with time as they were forgotten and passed into legend. As we all know many legends are founded on a truth and hopefully the Discovery Channel expedition will throw some light on these folk tales. The program is due to be rolled out to the public on Jan 1st 2013.
    This sample of Invertroll slate was given to me years ago and does indeed show some evidence of a species now probably extinct.

  14. Diana

    Are you being a little tinker here and have you fooled me hook line and sinker or maybe are we all looking at todays date !!!!!!!

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