River valley filled in by pyroclastic flows from 1991 eruption of Mt. Pinatubo. Aerial views of Maloma and Marella River valleys comparing preeruption terrain (A) and posteruption terrain with fill of pyroclastic-flow deposits (B). Orientation of both views is northeast toward Mount Pinatubo, but B was taken from a position slightly east of and at higher altitude than that of A. Note hill surrounded by pyroclastic-flow deposits near center of B and compare with A. Main (east fork) channel of Marella River to east (right) of knob has been filled to a depth of about 200 m.
River valley filled in by pyroclastic flows from 1991 eruption of Mt. Pinatubo. Source: [http://pubs.usgs.gov/pinatubo/wescott/fig2.jpg Fig.2] on [http://pubs.usgs.gov/pinatubo/wescott] {{PD-USGov-Interior-USGS}}
Mount Pinatubo
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