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Chocolate lava?

August 1, 2014
Mmmm! Or Hmmmm? Chocolate-frosted lava, or geology lesson? Both! Did you know that Hawaiian basalt starts out black, and becomes red or brown as it oxidizes, like this chunk of "chocolate lava" illustrates? On Kīlauea lava, when you find red and brown colors like this, it means oxidation occurred extra early, instead of having to wait for weathering processes. This yummy-looking piece was found near the spatter ramparts along the fissure eruption from Mauna Ulu -- and it was left there for future generations to enjoy and marvel over. (NPS Photo/J.Ferracane, geology lesson courtesy of Darcy Bevens, Center for the Study of Active Volcanoes, UH Hilo).

Chocolate-frosted lava, or geology lesson? NPS Photo/J.Ferracane

Mmmm! Or Hmmmm? Chocolate-frosted lava, or geology lesson? Both! Did you know that Hawaiian basalt starts out black, and becomes red or brown as it oxidizes, like this chunk of “chocolate lava” illustrates? On Kīlauea lava, when you find red and brown colors like this, it means oxidation occurred extra early, instead of having to wait for weathering processes. This yummy-looking piece was found near the spatter ramparts along the fissure eruption from Mauna Ulu — in Hawai‘i Volcanoes National Park, and it was left there for others to enjoy and marvel over. (NPS Photo/J.Ferracane, geology lesson courtesy of Darcy Bevens, Center for the Study of Active Volcanoes, UH Hilo).

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