Image:Carbon-14-10kyr-Hallstadtzeit Cycles.png

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Red curve shows 2,000-year solar Hallstadzeit Cycles.

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This image is a work of a United States Geological Survey employee, taken or made during the course of the person's official duties. As a work of the United States Government, the image is in the public domain. For more information, see the USGS copyright policy.

Source: http://pubs.usgs.gov/fs/fs-0095-00/

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  • (del) (cur) 21:37, 21 February 2005 . . SEWilco (Talk | contribs) . . 1024×384 (55,487 bytes) (Red curve shows 2,000-year solar Hallstadzeit Cycles. {{PD-USGov-Interior-USGS}} Source: http://pubs.usgs.gov/fs/fs-0095-00/)

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