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Re: Image comments for Ayers rock,Oz
Posted by: harvey
Date: 15/09/2006 05:04AM
The Rock is arkose, a course-grained sandstone rich in feldspar at least 2.5 km thick. Uplifting and folding between 400-300 million years ago turned the sedimentary layers nearly 90 degrees to their present position. The surface has then been eroded etc etc.
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