Thurston Lava Tube | the Big Island, Hawai’i
The lava tube at Volcanoes National Park in Hawai’i has always felt straight out of the Myst games for me- metal walkway through the jungle that leads you into a dramatically lit cave? Yeah, I need more of that in my life.
Lava fountain frozen during eruption.
The rarest lava on Earth, has some unusual properties. Unlike most lavas, this is a carbonate rather than a silicate, and erupts from Oldoinyo Lengai, a volcano in Tanzania. It comes out at a very low temperature, roughly 500 Celsius, runs like water and freezes rapidly. Its minerals and elements provide the fertility for the Masai Mara, that famous nature reserve filled with grazers and their predators. The fountains can solidify in the air in a short time, creating fragile and ephemeral ‘lavafalls’, the volcanic equivalent of a sandcastle.
Image credit: Carsten Peter and Tineke Speelman via Geomorfologia para todos.
Hawaii Volcanoes Timelapse
An Icelandic volcano that has been dormant for nearly 200 years has just erupted near the Eyjafjallajoekull glacier sending lava flows down into the valley. These falls are aproximatly had just been created by tha lava flow and was sending thousands of tonnes of lave down into the Thorsmörk valley.
A reservoir of water three times the volume of all the oceans has been discovered deep beneath the Earth’s surface. The finding could help explain where Earth’s seas came from.
The water is hidden inside a blue rock that lies 700 kilometres underground in the mantle, the layer of hot rock between Earth’s surface and its core.
Some geologists think water arrived in comets as they struck planets, but the new discovery supports an alternative idea that the ocean oozed out of Earth’s interior layer.