Monthly Archive: December What
The ability to place man-made devices – satellites – in orbit around our planet has revolutionized the ways in which we communicate and allowed us to study our planet, our solar system and our universe in ways not otherwise possible. In fact, satillites are so useful that there is a growing lack of space in outer space. Our planet is surrounded by literally tens of millions of pieces of man-made material ranging from dust and flecks of paint, to multi-tonne satellites and spent rocket components.
The weather forecast was pretty much on the money, and a dismal dawn yields to thunder-squalls rolling across the tundra. But, after breakfast and a second cup of coffee, the rain eases and we are a shade more optimistic about our flight out later this morning. Time for one last walkabout of our temporary home.
Clear skies at last! Down to the coast to catch good morning lighting and a fortuitously low tide, so we can see in detail how fossil-bearing Upper Ordovician carbonate deposits (445 million years old) at our main locality “lap” against the elevated flanks of a much more ancient rock mass. This highly resistant Proterozoic (about 2500 million-year-old) quartzite body is the remnant of a small island that formed part of an archipelago in shallow Ordovician subtropical seas.