For those who think about how volcanic rocks connect to the magmas that do not quite make it to the surface, here is a nice photo from Jim Webster’s door @AMNH
— Ben Black (@magmatist) April 30, 2019
(photo by Marion Tippmann-Böge, taken on Jan Mayen Island) pic.twitter.com/Gg2JpMiyxm
via Twitter https://twitter.com/magmatist
April 30, 2019 at 07:39PM
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