scinexx - das wissensmagazin<p>Wer schuf diese Mikrogänge? Merkwürdig parallele Bohrgänge in Marmor und Kalkstein geben Geologen Rätsel auf. <a href="https://nrw.social/tags/Marmor" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Marmor</span></a> <a href="https://nrw.social/tags/Geologie" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Geologie</span></a> <a href="https://nrw.social/tags/Mikrotunnel" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Mikrotunnel</span></a> <a href="https://nrw.social/tags/Bohrgaenge" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Bohrgaenge</span></a> <a href="https://nrw.social/tags/Marmorfresser" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Marmorfresser</span></a> <a href="https://nrw.social/tags/Kalkstein" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Kalkstein</span></a><br><a href="https://www.scinexx.de/news/geowissen/wer-schuf-diese-mikrotunnel/" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://www.</span><span class="ellipsis">scinexx.de/news/geowissen/wer-</span><span class="invisible">schuf-diese-mikrotunnel/</span></a></p>