6 comments on “NISYROS – (re-)Visited

  1. What a fascinating place. Great job with the photos. Looks like a location place to get a quick sunburn with all the sun and white reflecting pumice. Stark beauty. I can see why it draws you back.

    Question on uplift: You write that it Is tectonic. Is there a volcanic component (like Iwo Jima)?

    Great post. Cheers –

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    • Thanks agimarc!
      The uplift of Nisyros is to see in context with the complex geodynamic processes of the eastern end of this active Volcanic Arc. Which is the product of subduction of the African plate below the Turkish–Aegean micro plate.

      The wider Kos-Yali-Nisyros Volcanic Field had been cracked by major tectonic faults into horst & graben systems, along which uplift, down-faulting and strike-slip movements occurred.
      The Nisyros area was pushed up in the middle of the sunken part of a large graben, thus forming a tectonic horst, uplifted above sea-level. Whether that was caused by block movements or by beginning magmatic activity, I cannot say. Once volcanic activity commenced, further fracturing of the horst (former sea bottom) occurred. This was, beside ongoing tectonics, also due to inflation by rising magma. All the faults along and across the area are still very active; there have been a handful of highly devastating earthquakes in historic times. Scientists have also found a large batholith intrusion sitting below the area.

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  2. I have added a correction/update to this post (at the bottom) concerning my discovery of a small booklet that contains the description of 10 geotrails on Nisyros. Too late for me, but it’s one more reason for another visit. Meanwhile, it may help others.

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