I'd rather thought the oldest known rocks were in Australia..

Try the link below for the story.
Part of it here:
"It is the oldest known vast expanse of surface area. In fact it is more than four times older than the confirmed next oldest desert pavement, in Nevada, according to an article at the web site of the American Association for the Advancement of Science.

The newly dated desert pavement does not represent the oldest material on Earth, however. A lot of individual rocks have been found that are much older."

Canie

• Patch of Israel Desert Is Oldest Place on Earth