3 Columnar jointed limestone 052118

May 21st, 2018

2 Responses to “3 Columnar jointed limestone 052118”

  1. Liangtai Linon 11 Jan 2019 at 11:55 am

    Please advise:
    Are the rocks in the photo limestones? How did limestones form columnar joints?

  2. Mark Wilsonon 11 Jan 2019 at 11:59 am

    Yes, they are micritic limestones. I think the columnar jointing is a function of the hexagonal desiccation cracks throughout the beds.

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