May 2, 2016
Monday Geology Picture: Granite Boulder in the Forest
Posted by Evelyn Mervine
Beautiful granite bolder.
For this week’s “Monday Geology Picture” here’s a shot of a pretty granite boulder that I spotted during a forest hike in the Constantia region of the Cape Town, South Africa. No doubt, this boulder consists of ~550 million year old Cape Granite. There’s no scale in this picture, but the boulder is about 2 meters wide.
If you go to Indonesia, especially on the island of Papua, you can find granite gravel 1250 million years old (pre-Cambrian – Meso-Proterozoic: Ectasian).