At almost 5,000 feet heklas distinctive cone towers above the landscape. Shes one of icelands most active volcanoes, erupting over 20 times in the last thousand years. Hekla last erupted in 2000 and recently her eruptions have been mild. But thors discovered a place that shows just how explosive she can be. And with hekla its all about ash. The snowcovered mountain in the background there is the hekla volcano itself. And here in the foreground this lightcolored layer there at the top was erupted from hekla 3,000 years ago. Narrator these ash layers tell thor a great deal about heklas explosive past. Thordarson the reason why we spend our time studying these ash layers is that we can get information about the nature of the eruption, its intensity, its explosive power, and how widely it affected the environment. Narrator hes discovered one particular eruption from hekla 3,000 years ago which threw out a tremendous amount of ash. If you look at the landscape around us, all the surface is
Yeah, coming. [ excited whispering ] [ starts vehicle ] once you see your first wild tiger its an experience that stays with you. You shouldnt have an apex in evolution but if there was one its got to be the tiger. We had to explore the area get to see where the tigers were moving and then choose a tiger. So we started following this tigress that we called machli. And because we spent every day on her trail she became very tame. Lets go, come on, come on lets keep moving. Keep it close. I remember coming up to christmas and machli started acting strangely. And we thought, salim and i, she must be looking for a man. On a Christmas Morning the sun was just coming up beautifully over the hill. Machli came walking up with her suitor. He was a great big male called bomburam. They spent the next few days together, mating continuously. Sure enough, out came these two little bundles. The bundles that we were going to call broken tail and slant ear. Broken tail was just special. He was adventur
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The "plumbing systems" that lie under volcanoes, the location and behavior of magma chambers on the Earth s mid-ocean ridge system, a vast chain of volcanoes along which the Earth forms new crust, could bring scientists closer to predicting large eruptions. Researchers worked in Afar (Ethiopia) and Iceland, the only places where mid-ocea
Magma flow in the magmatic dike near Grindavík was among the fastest recorded. The processes driving that flow could be at play at volcanoes in Hawaii, off the African coast, and anywhere crustal plates split apart.