james_davis_nicoll: (Default)
james_davis_nicoll ([personal profile] james_davis_nicoll) wrote2012-09-19 11:16 am
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Everything is connected

A failed rift valley 1.1 billion years ago led to the Old Copper Complex appearing six thousand years ago.
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movingfinger: (Default)

[personal profile] movingfinger 2012-09-19 03:22 pm (UTC)(link)
Geology is pretty cool.

[identity profile] neowolf2.livejournal.com 2012-09-20 12:43 am (UTC)(link)
Geology is endlessly fascinating. Jonh McPhee's geology-oriented books, I strongly recommend.
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