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Beautiful boulders
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A puddingstone and sarsen boulder at Berkhamsted
Description of features
:
This puddingstone boulder is interesting because it shows sarsen quartzite grading into a puddingstone matrix. It is thought to have formed in tropical climatic conditions in the Palaeocene period, about 55 million years ago.
Location
:
Castle Hill, Berkhamsted, Herts.
OS grid reference
:
TL 993085
Date of photo
:
2009
Copyright holder ©
:
TD Holt-Wilson
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Geo-East Gallery
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Beautiful boulders
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