March-April 2016 GSA Today cover (IMAGE)

Geological Society of America

March-April 2016 GSA Today cover

Caption

Prof. Axel von Hillebrant (Technical University, Berlin) driving the golden spike into the bed that marks the base of the Jurassic System (Lower Jurassic Series; Hettangian Stage), Aug. 20, 2011. Prof. von Hillebrandt led the team that investigated the Kuhjoch section in the Northern Calcareous Alps of western Austria, where the GSSP is located, and prepared the GSSP proposal, which was subsequently approved by ICS and ratified by IUGS.

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