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Mt. Lascar   In April 1993, Mt. Lascar (1) in northern Chile erupted, sending a plume of ash many thousands of feet into the air. The deposited ash was immediately picked up again by the high winds whipping across the Altiplano. Tendrils of resuspended volcanic ash (2) were photographed by the STS-55 crew about one week after the Lascar eruption. By June 1993, all traces of the newly-deposited ash were gone, suggesting that the speed and volume of transport of unconsolidated volcanic material off the Andes to the east is tremendous. The only visible signs of the April 1993 eruption are the light gray flows down the NW flank of the mountain. (STS055-151-058)
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[[image: Picture of Mt. Lascar from space]]