2021

SJ9818 : Glacial Boulder and Trigpoint, Cannock Chase

taken 2 years ago, near to Brocton, Staffordshire, England

Glacial Boulder and Trigpoint, Cannock Chase
Glacial Boulder and Trigpoint, Cannock Chase
Set upon a pedestal of Triassic pebbles, the boulder is of Granite which is out of place here on the Moorlands of South Staffordshire, there being no granite outcrops anywhere in the Midlands. The boulder has been matched however, to the intrusive rock outcrop at Cniffel in Dumfries & Galloway, which is over 170 miles (280km) away from the Chase in the Southern Uplands of Scotland. This granite 'erratic' is marked on the OS map as the "Glacial Boulder", which gives some idea how it got here. The boulder was ripped from its parent mountain sometime during the last Ice-Age, and was transported by glacial action to its present location, the journey perhaps taking ten-thousand years during which the edges of the rock were worn down, giving its present rounded appearance.

Creative Commons Licence [Some Rights Reserved]   © Copyright Brian Deegan and licensed for reuse under this Creative Commons Licence.
Geographical Context: Historic sites and artefacts Village, Rural settlement Woodland, Forest Moorland Primary Subject: Glacial Feature other tags: Glacial Deposits Glacial Boulder Glacial Erratic Glacial Erratics Click a tag, to view other nearby images.
1:50,000 Modern Day Landranger(TM) Map © Crown Copyright
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1:50,000 Modern Day Landranger(TM) Map © Crown Copyright
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SJ9818, 75 images   (more nearby 🔍)
Photographer
Brian Deegan   (more nearby)
Date Taken
Saturday, 20 November, 2021   (more nearby)
Submitted
Saturday, 20 November, 2021
Subject Location
OSGB36: geotagged! SJ 9800 1818 [10m precision]
WGS84: 52:45.6732N 2:1.8646W
Camera Location
OSGB36: geotagged! SJ 98002 18163
View Direction
NORTH (about 0 degrees)
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Image Type (about): geograph 
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