Geobulletin alpha

News from the Geoblogosphere feed

by Stratigraphy.net
New from Snet: Lithologs, a new tool to create lithological/sedimentological logs online..

Blog post recommendation

How Old Is Plate Tectonics? Signals From The Mantle

A recent study has used the geochemistry of Archean basalts and komatites to suggest that plate tectonics began by 3.2 billion years ago. The chemical composition of these two volcanic rocks points to active transfer of elements from the crust into the deep mantle by this time. The authors argue that this mass transfer from surface to the interior can most efficiently be achieved only via

Stratigraphy.net | Impressum
Ads: