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“Basalt Columns” Resulted from Prehistoric Civil Engineering
Wednesday, May 27, 2015 6:29
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After examining many photos of “basalt columns”, I found they were actually concrete columns constructed by prehistoric humans for the purpose of using them as wave breakers, campshed, cave support, etc.
Example 1: Wave Breakers: https://www.flickr.com/photos/fossil_lin/15779731268/
Example 2: Campshed: https://www.flickr.com/photos/fossil_lin/16415174996/
https://www.flickr.com/photos/fossil_lin/16090320958/in/photostream/
https://www.flickr.com/photos/fossil_lin/16090320958/in/photostream/
Example 3: Cave support: https://www.flickr.com/photos/fossil_lin/16236947575/
Read more at http://wretchfossil.blogspot.tw/
Source: http://wretchfossil.blogspot.com/2015/02/prehistoric-humans-constructed-concrete.html
