Map #19: Isopach

http://www.volcano.si.edu/volcanoes/region15/andes_n/lascar/15las14f.png

http://www.volcano.si.edu/world/volcano.cfm?vnum=1505-10=&volpage=var

Isopachs show the thickness of rock in the area. This is an isopach map of the lighter volcanic rock called tephra, after the eruption of Lascar on April 19-20, 2004. The depths are in centimeters.

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