Quote:
Originally Posted by RGClark
In the discussion I linked above I suggested some visual features were similar to columnar joints, a volcanic feature.
Let's see what the readings are on the rocks within the crater.
Bob Clark
|
Lots of rocks have presimatic jointing. They don't mean that a rock is volcanic.
On the other hand we do not see coherent volcanic rocks, graded bedding, bombs, dykes are anuthing else indicative of a proximal vent.
Jon