Saturday, February 8, 2014

"Archaeologists discover 800,000-year-old footprints on an English beach"

It wasn't me, I swear.
From the British Museum blog:

The earliest human footprints outside Africa
Nicholas Ashton, curator, British Museum
Happisburgh has hit the news again. Last time the coverage even reached the People’s Daily in China, but I’ve yet to find out which parts of the globe the latest story has reached. Whereas three years ago the news was the oldest human site in northern Europe at over 800,000 years ago, now we have the oldest footprints outside Africa. Happisburgh just keeps giving up surprises.
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We found them by pure chance in May last year. We were about to start a geophysics survey on the foreshore, when an old-time friend and colleague, Martin Bates from Trinity St David’s University, pointed out the unusual surface. The site lies beneath the beach sand in sediments that actually underlie the cliffs. The cliffs are made up of soft sands and clays, which have been eroding at an alarming rate over the last ten years, and even more so during the latest winter storms. As the cliffs erode they reveal these even earlier sediments at their base, which are there for a short time before the sea washes them away.
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Back in May, high seas had removed most of the beach sand to reveal ancient estuary mud. We’d seen these many times before and had been digging them for years. Normally they consist of flat laminated silts, but in a small area of about 12 square metres there was a jumble of elongated hollows. Martin pointed them out and said that they looked like footprints. He’d been studying similar prints on the Welsh coast near Aberystwyth, but they were just a few thousand years old; we knew the sediments at Happisburgh were over 800,000 years old.

I imagine that there will be plenty of sceptics out there, as were we initially, but the more we eliminated the other possibilities, the more convinced we became. The sediments are hard and compacted – you can jump on them today and leave little impression. And there are no erosional processes that leave those sort of hollows....MORE
HT to and headline from The Verge