The origin of Stonehenge's bluestones have been traced back to outcrops of natural pillars at Carn Geodog and Craig Rhos-y-felin in the Preseli Hills of Pembrokeshire Coast National Park, in Wales. The very large standing stones at Stonehenge are of ‘sarsen’, a local sandstone, but the smaller ones, known as ‘bluestones’,
A 4.4-billion-year-old gem found on an Australian sheep ranch is the oldest known piece of Earth yet found. Scientists using two different age-determining techniques have shown that a tiny zircon crystal found on a sheep ranch in Western Australia is the oldest known piece of our planet, dating to 4.4 billion
Here is an amazing video showing 650 million years of plate tectonic movement in less than 2 minutes.