Dolerite sea columns of Tasman Peninsula rising up to 300 m high asl, a mafic rock that intruded beneath earth's surface as #sill or as dyke http://pic.twitter.com/QGyrVB4Lg3
— jaime s. sincioco (@jaimessincioco) August 26, 2017
via Twitter https://twitter.com/jaimessincioco
August 26, 2017 at 10:36AM
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