1 2 3 4 5 6 7 8

 

A rock collected in yesterday’s dredge looks like it has ropes on its surface. Called ropy lava, this rock still retains the original shape of the fast-moving lava surface when it was erupted. The dull gray coating on the surface is a manganese oxide that tells us the rock is old - new rock is covered in shiny volcanic glass.


« Previous | Next »

A rock collected in yesterday’s dredge looks like it has ropes on its surface. Called ropy lava, this rock still retains the original shape of the fast-moving lava surface when it was erupted. The dull gray coating on the surface is a manganese oxide that tells us the rock is old - new rock is covered in shiny volcanic glass.

« Back to today's update