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Cross sections
showing relations of stratigraphic units:
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1.9 ky pyroclastic flow;
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2. 13 ky banded
ignimbrite
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3. Tetelzingo
deposit- foming flat terraces with veneer deposits up to 60 m above the thick
fill deposits (section B-B’), and showing small hummocks, about 5-15 m high
(section C-C’) similar to those found at the Osceola lahar (Mount Rainier).
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4. Old Debris
flows
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5. Andesite
block and ash flows
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6. Cretaceous
limestone
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Green square
indicates location of next slide.
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Veneer deposits
suggest peak levels of the flow passing through the barranca.
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