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Geobulletin
alpha
News from the Geoblogosphere
by Stratigraphy.net
New from Snet:
Lithologs
, a new tool to create lithological/sedimentological logs online..
Blog post recommendation
Annotating some Zion cross-bedding
I got a comment the other day on an old post on this blog, one showing beautiful cross-bedding at Zion National Park. These are dune sands – windblown at the time of deposition, and cemented in place for millions of years thereafter. These are petrified sand dunes! The commenter asked about annotation, so I took ten minutes and modified the picture to highlight the key features as I saw them. …
Stratigraphy.net
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