Geology

  • Deeply buried continental crust under Iceland

    T.H. Torsvik, Centre for Earth Evolution and Dynamics  and Dept. of Geosciences, Univ. of Oslo R.G. Trønnes, Centre for Earth Evolution and Dynamics and Natural History Museum, Univ. of Oslo   The thick crust of Iceland and the surrounding ... Read more
  • The Bárðarbunga-Nornahraun eruption - an ongoing demonstration of rifting and volcanism

    The basaltic lava emission from a fissure system connected to the the Bárðarbunga central volcano under Vatnajökull is now the largest eruption in Iceland in the past 230 years.  Although the central volcano is located in the Eastern Rift Zone, ... Read more
  • The Gravity Expedition

    This is part two, a follow up from the last entry to this blog in November, Preparing for gravity. Now we are here to do the work in earnest. A group of five people are now living in the tunnel for a week to measure positions to place gravimeters, and perform ... Read more
  • The Gravity Expedition - Part II

    We have finally finished the subglacial work! Indeed, we were able to perform the first ever absolute gravity value measured underneath a glacier! But, as expected when we wrote Part I of this contribution, hard work and long working days continued throughout the ... Read more
  • Preparing for gravity

    By: Christian Gerlach A team from Norway and Germany has visited the sub-glacial lab, preparing for a gravity campaign next spring. This will be (as far as we know) the very first absolute gravity measurement ever to be carried out underneath a glacier. Why gravity? ... Read more
  • Long day, short story

    Monday 15th April. By Pierre-Marie Lefeuvre. Finally, after several months of preparation, we are set to travel to the Svartisen-Saltfjellet natural park. We are going to install newly developed GPS platforms at the surface of Engabreen as well as melt an ice cave ... Read more
  • A visit to Brelabben by someone who has no place being there

    Brelabben, April 2013. Posted by Erik Rose Johnsen, communication advisor at NVE. Midnight. I’m about to start my 6 hour shift melting ice beneath the glacier Engabreen. To be where I am, I had to walk almost 1, 5 kilometers through a tunnel in the ... Read more
  • The descent

    Saturday 17th November - by Pierre-Marie Lefeuvre The snow had melted severely during the week and there was little remaining at lower elevations. Nevertheless, on the mountain sides we got stuck into deep and slushy patches. Luckily, we avoided most of it following ... Read more
  • Last day in the tunnel

    Friday 16th November - Written by Miriam Jackson Our last full day in the tunnel. As usual, the days seem go by quicker and quicker as we get closer to the end of our stay. Pim and Thomas head up to the lab after breakfast to do some measurements. Paul, the ... Read more
  • The second cave

    Thursday 15th November – Thomas Schellenberger Our first cave has shrunk quite a bit during the last two days due to the movement of the glacier and the weight of roughly 200m of ice which lies on top of us. We start melting again, which means another four ... Read more

Bloggers on Geology

Henrik Svensen

senior researcher at Physics of Geological Processes (PGP)
Geology

Nanna B Karlsson

Nanna B. Karlsson
Geology

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