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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
Earth's crust was unstable in the Archean eon and dripped down into the mantle
Model calculations indicate that the extreme density of the base of the thickened primary crust caused it to subside into the Earth's mantle Earth’s mantle temperatures during the Archean eon, which commenced some 4 billion years ago, were significantly higher than they are today. According to recent model calculations, the Archean crust that formed under these conditions was so
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