DescriptionAsh Fall Deposits and Debris Flow at Nevado del Ruiz volcano in Colombia.jpg
English: Volcanic deposits of Nevado del Ruiz volcano in Colombia - the top of the 11,000 yr (before present) ash fall deposits interstratified with paleosols overlying a channelized debris flow and a sequence of wet surges. The age of the surge deposits is unknown.
Figure 18 in Vargas, C.A.; Mann. P.; and Borrero, C. (2011) Field guides for excursions to the Nevado del Ruiz Volcano and to the Romeral Fault System (Colombia), in the frame of the Neotectonics of arc-continent collision concepts, Earth Sciences Research Journal, Volume 15, Number 1, pages 47-74, excursion stop 6.
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