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The Geology Forum attracts people with questions about the remarkable stones they've found. More often than not, those stones are concretions: oddly shaped bodies of fine-grained sedimentary rock that are cemented with calcite or iron minerals from chemical interactions in groundwater. Clearly no on ...

Consider the convenience of salt. Only two centuries ago, salt was a high-cost item that involved intensive human labor even in the most advanced civilizations. An example of a native American saltworks has been newly documented by the U.S. Geological Survey in the Sierra Nevada of California. It co ...

Geologists and collectors favor some unfavored places—by definition, exposures of bare rock are not where the general public likes to go—and these places have a way of being taken away for some higher and better use. In West Paterson, New Jersey, the abandoned UBC Quarry is known for its dinosaur tr ...

Have you seen the quiz yet? Go ahead and try it now . Answers below the fold: Read more... Answers to the 2009 Christmas Geology Quiz originally appeared on About.com Geology on Monday, December 28th, 2009 at 03:07:51. Permalink | Comment | Email this

By all accounts, the newest Sherlock Holmes movie makes the Great Detective something more like an action hero. But geologists have always known Holmes as an exemplar of their working lives—the real world is in the field, where every perception may be evidence and where no detail is too small to ove ...

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...

Because of an over-clouded sky I did not see the blue moon on New years Eve. Neither do I feel the warmth of the sun in the barren winter we have right now here in the northern hemisphere, in spite of the fact that these days we are the closest to the sun in the whole year - in the so-called anomali ...

Two last minute papers for 2009 from Palaeodiversity. This is an open access journal so these papers and others can be downloaded for free from here. Maisch, M.V., Vega, C.S., and R.R. Schoch. 2009. No dicynodont in the Keuper – a reconsideration of the occurrence of aff. Dinodontosaurus in the Mid ...

Photo from the San Joaquin Valley Paleontology Foundation A colleague of mine in an earlier phase of my life at Santa Barbara City College was fond of saying to field trippers that "I wouldn't take you JUST anywhere!" And a great Peanuts cartoon talked about a field trip the kids went on, and how th ...

As an addendum to Emily Green’s year-end look at Lake Mead ( High good, low bad ) I’d like to extend the analysis back a bit farther in time. Emily points out that, while population has risen over the past decade in the region served by Mead (one of the two large storage reservoirs on the Colorado), ...

I do read an awful lot of books but in general shy away from the whole popular science genre. The general stuff on major aspects of biology I find too simplistic (and often repetitive, I mean, I know a lot about evolution), the historical stuff I tend to find dull (I’m just not that interested in hi ...