File:Cross sections of African elephant and woolly mammoth tusks.png
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Summary
| Description | Cross sections of the tusk samples with positions of samples for XRD and positions of measurement (red dots) marked. (a,b) Loxodonta africana. Note the annual growth rings and the >90° angle of the Schreger pattern. (c,d) Mammuthus primigenius. Note the annual growth rings and the <90° angle of the Schreger pattern (Photographs S. Döring, Senckenberg Research Institute, Research Station of Quaternary Palaeontology Weimar). |
| Date | |
| Source | https://www.nature.com/articles/s41598-019-38779-1?f |
| Author | Sebastian J. Pfeifer, Wolfram L. Hartramph, Ralf-Dietrich Kahlke & Frank A. Müller |
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 02:27, 19 December 2020 | | 1,496 × 1,420 (1.35 MB) | FunkMonk | {{Information |description=Cross sections of the tusk samples with positions of samples for XRD and positions of measurement (red dots) marked. (a,b) Loxodonta africana. Note the annual growth rings and the >90° angle of the Schreger pattern. (c,d) Mammuthus primigenius. Note the annual growth rings and the <90° angle of the Schreger pattern (Photographs S. Döring, Senckenberg Research Institute, Research Station of Quaternary Palaeontology Weimar). |date=2019 |source=https://www.nature.com/a... |
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