SH3040 : Erratic boulder

taken 6 years ago, near to Nefyn, Gwynedd, Great Britain

Erratic boulder
Erratic boulder
This fine erratic boulder has just fallen onto the beach as part of a landslide (SH3040 : Fresh landslide). It is made of Carboniferous Limestone, and may only have travelled from Anglesey, but although it is very angular and fresh, one side has been rubbed vigorously on bedrock and flattened. This surface carries a record of its transit and abrasion in the form of dense and (mostly) parallel striations. Sadly, these features are soon lost as the limestone dissolves in the rain. A pencil gives a scale.
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SH3040, 140 images   (more nearby )
  (find more nearby)
Date Taken
Sunday, 2 September, 2012   (more nearby)
Friday, 12 October, 2012
Geographical Context
Coastal  Geological interest  Rocks, Scree, Cliffs 
Subject Location
OSGB36: geotagged! SH 3050 4092 [10m precision]
WGS84: 52:56.3302N 4:31.4233W
Camera Location
OSGB36: geotagged! SH 3050 4092
View Direction
Southeast (about 135 degrees)
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Image classification(about): Supplemental image
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