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Teacher's Guide to Valles Caldera: The Science

An Earth Systems Approach

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Formation of Travertine

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Microbial life helps to cement the layers of travertine.

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Valles Caldera Images

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These materials were developed with support from the National Science Foundation awards #EPS-0814449, #EPS-0918653 and DRL-1038654. Any opinions, findings, conclusions, or recommendations expressed in the material are those of the author(s) and do not necessarily reflect the views of the National Science Foundation. VCNP Contact