nemfrog:“Interior of a rhyolytic lava stream…showing broad sigmoidal folds produced by the slow movements of the mass.” Volcanoes. 1881.Internet Archive

nemfrog:“Interior of a rhyolytic lava stream…showing broad sigmoidal folds produced by the slow movements of the mass.” Volcanoes. 1881.Internet Archive

tags: Sticky Fingers,

from: https://amused-itself-to-death.tumblr.com/post/642384066353741824