GeologyRocksStrange rock formation
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John
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This is a bit tricky. Much
Wed, 05/16/2012 - 21:04This is a bit tricky. Much depends on what the rock actually is. You say its black, and I'm wondering if it is a basalt with included xenoliths of country rock, and the lines are simply cooling cracks.
What do you others reckon?
John
“Civilisation exists by geological consent, subject to change without notice.” - Will Durant
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Strange rock formation
Submitted by kalahari on Wed, 05/16/2012 - 19:50.I live in Windhoek and I am not very familiar with geology. I came across this formation in Windhoek (Khomas-Hochland):
Unfortunately I did not put something down to indicate the size. However, I estimate that the leaf in the right corner on top is about 3 cm long, the blades of grass in the centre are betwen 10 -15 cm long.
I was fascinated by the criss cross pattern an the smaller rocks embedded in the solid looking black material.
Does anybody have an explanation?