Category Archives: rocks & minerals

New at Erratics: from lahar to suevite

Posted on January 26, 2011 by Chris Rowan

In his second post at Earth Science Erratics Simon Wellings reveals a rather interesting deskcrop, collected from Scotland in his youth: Since it was picked up, this rock has changed identities: what was once thought to be a mud flow … Continue reading →

Categories: planets, Proterozoic, rocks & minerals

Using rock cubes to learn about hydrogeology

Posted on October 28, 2010 by Anne Jefferson

Dunking rocks in water – and doing some measurements and calculations – helps my students get a hands-on understanding of porosity. Continue reading →

Categories: by Anne, hydrology, rocks & minerals, science education

Glacial deposits new and old in the Scottish isles

Posted on August 5, 2010 by Chris Rowan

Islay – one of the birthplaces of the Snowball Earth. And good whisky. Continue reading →

Categories: deep time, geology, outcrops, past worlds, photos, Proterozoic, rocks & minerals

Standing up for serpentinite

Posted on July 15, 2010 by Chris Rowan

The presence of serpentinite is like a big red flag telling geologists “interesting tectonic stuff here!”. But in California, that might not be the only red flag that you will be seeing in the future, if the state government have their way. Continue reading →

Categories: antiscience, geology, public science, rocks & minerals, science education