Tag Archives: Jack Hills

An Aside – Awed by Antiquity

As an aside, before continuing on with reporting on this adventure, I think it’s worth noting that this remarkable barrier reef, heaved up from the ocean floor to become the Napier Range, is not the only stunningly ancient bit of rock in this corner of Australia. It’s all mind-bogglingly old here. In fact, the Hamersley Range, a bit south and west of here, and which I visited on my first trip Down Under, is believed to be the first part of the Earth’s crust to have cooled after the planet was formed.

Here’s one of the posts I did a few years ago about my time in the Hamersley Range, after a visit to Hamersley Gorge, one of many breaks in the range, but one that is famous for showing clearly the effects of the tremendous pressure that formed and shaped some of these ancient rocks.
https://waltzingaustralia.wordpress.com/2008/07/20/hamersley-gorge/

Then, just a few years ago, on a sheep ranch at Jack Hills, not too far from the Hamersley Range, scientists found what they believe to be the oldest chunk of rock on the planet—a zircon crystal that they estimate was formed at the planet’s dawning.

Here’s an article with more details on this ancient zircon—and a photo.
http://www.livescience.com/43584-earth-oldest-rock-jack-hills-zircon.html

So I was traveling through a region where phenomenal antiquity is the norm. One more reason to love this remarkable place.

Advertisements

1 Comment

Filed under Australia, Geography, History, Nature, Science, Travel