Lavarosette

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The lavarosette Piedra de la Rosa on Tenerife.
Basalt rosette in Jökulsárgljúfur National Park

A lavarosette (also lava rose or lava flower) is a formation of volcanic rock with radially arranged lava columns . The alignment of the lava columns is always perpendicular to the cooling surface, i.e. the outer surface of a lava tunnel or an intrusion .

Often these formations are also called basalt rosette, basalt rose or basalt flower, even if they are not made of basalt.

Occurrence

  • The Rosette Rock in Organ Pipes National Park .
  • The Hirtstein in the Ore Mountains, a basalt fan in the cross section of a spring crest.
  • The lavarosette Piedra de la Rosa on Tenerife.

Web links

Individual evidence

  1. ↑ Hans-Ulrich Schmincke: Vulcanism . Primus-Verlag, Darmstadt 2010, ISBN 978-3-89678-690-6 . Page 114.