Earth - Earth Sciences news

How a change in slope affects lava flows

As soon as lava flows from a volcano, exposure to air and wind causes it to start to cool and harden. Rather than hardening evenly, the energy exchange tends to take place primarily at the surface. The cooling ...

Sep 15, 2014 4 / 5 (1) 0

A cold case heats up again

Twenty-five years ago, a U of A professor together with a newly minted alumnus, John Geiger, '81 BA, published Frozen in Time, a shocking and influential account of the Franklin expedition's disastrous final ...

Sep 10, 2014 4.5 / 5 (2) 1