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Glassy buds

Glassy Buds AMNH/R.Mickens

Exhibition Text

These pillow buds from the East Pacific Rise formed when the magmatic pressure within a pillow caused tiny fractures through which magma seeped. The preservation of the fragile protuberances of chilled magma is evidence that the rocks are relatively young.

Provided by Prof. John Edmond, Woods Hole Oceanographic Institution

For Educators

Topic: Earth Science

Subtopic: Volcanoes

Keywords: Ocean bottom, Volcanoes, Magmas, Mid-ocean ridges, Lava, Volcanic eruptions

Audience: General