olelog

Peridotite makes up a large part of the Earth, but it's very seldom seen because it lies in the mantle, underneath the crust. It took a rare combination of tectonic...

This is a local story, but indulge me: The Mother's Cookie Company, an Oakland institution for more than 90 years, filed for bankruptcy yesterday, putting an end to a variety...

I asked my newsletter subscribers for pictures of concretions, and now there are enough to fill this new gallery of concretions. These intriguing objects are often taken for fossils, but...

I've put up a photo tour of Shell Beach, on the California coast. It's no ordinary beach, although the tide pools and fishing are supposed to be good. I was...

Sunday I visited Shell Beach, on the Sonoma County coast. The trip was to collect photos for an upcoming gallery on this showcase of Franciscan rocks, like the fine boulder...

Isen omkring Nordpolen forsvinder hurtigere, end selv de mest skeptiske...

Det svenske Vattenfall overtog tre danske kulfyrede kraftværker –...

I Sverige har en mineralsamler fundet de første svenske diamanter...

Dig og klimaet Informationscenter for Miljø og Sundhed har i dag (1....

Jordskred, som det der onsdag aften rev 400 meter af motorvej E6 og 300 meter...

Unknown, that is, to the people who demand scientific evidence! But you and I are above that sort of thing, especially when there is no hope of getting that evidence, as long as the US relies on pork-barrel direct Science funding. Here is a nice long article on interior earthquakes, along with all ...

The eruption of Kasatochi was a bit of a surprise to volcanologists who study the Aleutians, to say the least. The volcano itself has been quiet for likely over 100 years, but with relatively little warning, the volcano erupted over the summer, blasting ash (and a large amount of sulfur dioxide ) i ...

On Sunday afternoon, a large ash eruption occurred at Halemaumau Caldera at Kilauea. Not only did the volcano belch more grey ash than usual, but also red-hot incandescent material can be clearly seen being thrown from the vent during the vigorous eruption. The coolest thing about the eruption is t ...

Click here to view the latest Earthlearningidea - 'Weathering - rocks breaking up and breaking down' . In this activity pupils are asked to match pictures and descriptions of weathered rocks with the processes of weathering that formed them. Weathering occurs all around us, and in all climates. It a ...

      I’m a little behind on the news after spending the weekend field tripping at Lassen Peak. I’ll be catching up soon, but to tide you over, here is a picture I took of some bubbling mudpots/springs at Bumpass Hell near Lassen Peak. The dark areas are pyrite crystals floating on the stew! ...