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Im Gegensatz zu anderen GSSPs, die in marinen oder terrestrischen Sedimentabfolgen liegen, dient in diesem Fall der Eisbohrkern des North Greenland Ice Core Project (NGRIP) als Referenzprofil.Die Grenze wurde auf 11700 Jahre vor dem Jahr 2000 (b2k) datiert.S"; // It works //String timestamp Format = "YYYY-MM-DD HH:mm:ss.S AM/PM"; //String timestamp Format = "YYYY-MM-DD HH:mm:ss.

Wissenschaftlich beschrieben wurde der GSSP zum ersten Mal von Mike Walker u. Die Bohrung durchfuhr 3085 Meter an Eis, bevor sie auf anstehendes Gestein traf. Hughen, Peter Kershaw, Bernd Kromer, Thomas Litt, David J. Newnham and Jakob Schwander The Greenland ice core from North GRIP (NGRIP) contains a proxy climate record across the Pleistocene– Holocene boundary of unprecedented clarity and resolution.A timescale based on multi-parameter annual layer counting provides an age of 11,700 yr b2k (before AD2000) for the base of the Holocene, with an estimated 2s uncertainty of 99 yr.Cosmic-ray produced radionuclides, such as C which are stored in polar ice cores and tree rings, offer the unique opportunity to reconstruct the history of cosmic radiation and solar activity over many millennia.Although records from different archives basically agree, they also show some deviations during certain periods.

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