Answers to the special sunday riddle Name that Lava #18
1. Teschenite sill
2. Isle of May in the Firth of Forth in Scotland,
Google maps link
3. The puffins and the grey seals.
The original image was this one:
Teschenite is explained here.
Quoting Ursula: “The Isle of May is not a volcano, it is a sill, so an underground intrusion of magma, which happened about 300 million years ago (carboniferous period). It is not a plug, as some people guessed. The stone is teschenite, sometimes also specified as analcime bearing gabbro.”
Ursula also provided a few links:
Wikipedia Isle of May.
Dive the Isle of May:
Geology/rock type can be found on the geologyviewer (by BGS, thanks to Alan for this link!).
Ilse of May NNr blog blog of researchers who observe birds there,
here are some good puffin photos from this blog.
Puffins ( Wikipedialink) are animals which people of Volcancafe enjoy watching when they play around on the tiny icebergs of Jökulsárlón on the Mila Webcam.
Grey seals are common on the Ilse of May.
Hope you enjoyed Ursula´s riddle
Here are the results:
One point for Sissel for grey seal and one for IngeB for puffin.
Talla and Lisa each get one point each for Isle of May, because of the confusion with the split-page of comments.
Last point for teschenite sill goes to Sissel.
Oh and here are 2 lighthouses on the isle of May for Sissel.
Updated standings of Name that Lava after this riddle (by Ursula):
4 Diana Barnes
2 Doug Merson
2 Stephanie Alice Halford
1 Inge B
1 Heather B
1 Henri le Revenant
1 Alan C