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Author Archives: Chris Rowan
Where the Moon was at, 3.2 billion years ago
It may not look particularly cosmic, but the rock below not only tells us that the Moon was present back in the Archean, but also that it was orbiting the Earth at a much closer distance than it is today.
What is a greenstone belt?
The Barberton greenstone belt – one of the oldest bits of crust on the planet
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A recommendation from your friendly neighbourhood field trip instructor
Dear geology students everywhere, Should you be out on a field mapping exercise, and one of the teaching staff does any of the following: (1) Sits pointedly on or near a particular outcrop as you wander past; (2) Deliberately wanders … Continue reading
Philosophia Naturalis #11: Powers of 11
Physical Science covers a variety of disciplinary sins: particle physicists, geologists, and astronomers all fall within its remit. So, in the course of seeking out worthy entries for this months edition of Philosophia Naturalis, I’d find myself quickly moving from … Continue reading
I do spend most of my time in the office… just not at the moment
I seem to be attracting short-notice field trips at the moment. I’m off on a teaching trip to Barberton for a couple of weeks today – a fact that I wasn’t actually aware of until this weekend. It’s not that … Continue reading