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20170913-usgs-halemaumau-02

Wispy fumes provided a clear view of the western wall of the Overlook crater this morning. Just above the lake surface (bottom of photo), a "bathtub ring" extends up the wall several meters, marking a recent high stand of the lake. Above that, a thick span of red, white and yellow rock is exposed in the crater wall. The colors originate from oxidation and alteration of older lava that filled Halema‘uma‘u in the 1960s and 1970s. Above the colorful rocks is an 8 m (26 ft) thick section of darker rock layers, which were formed by lava overflowing the vent rim in April and May 2015. The top of the photo shows the flat floor of Halema‘uma‘u, blanketed in a continuous layer of Pele's hair. Photo taken Wednesday, September 13, 2017 courtesy of USGS/HVO

Wispy fumes provided a clear view of the western wall of the Overlook crater this morning. Just above the lake surface (bottom of photo), a “bathtub ring” extends up the wall several meters, marking a recent high stand of the lake. Above that, a thick span of red, white and yellow rock is exposed in the crater wall. The colors originate from oxidation and alteration of older lava that filled Halema‘uma‘u in the 1960s and 1970s. Above the colorful rocks is an 8 m (26 ft) thick section of darker rock layers, which were formed by lava overflowing the vent rim in April and May 2015. The top of the photo shows the flat floor of Halema‘uma‘u, blanketed in a continuous layer of Pele’s hair. Photo taken Wednesday, September 13, 2017 courtesy of USGS/HVO

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