NT9521 : Red ochre deposit, Housey Crags

taken 9 years ago, near to Langleeford, Northumberland, Great Britain

Red ochre deposit, Housey Crags
Red ochre deposit, Housey Crags
This vivid deposit caught my eye on the rocky summit of Housey Crags. The chalky rock readily stained my fingers when touched as it has stained the grasses around. The view is east to Langlee Crags.

"Red ochre with nodules of hematite occur in a small vein traversing the rocks above Langley-ford. The shepherds use the latter for marking their sheep." LinkExternal link
Chemically, it is hydrated iron (III) oxide, mineralogically known as limoniteLinkExternal link

Many pieces of red ochre were found during the excavation of a mesolithic round house on the Northumberland coast at Howick NU2516 : Reconstructed Mesolithic round-house where it may have been valued due to its antiseptic qualities and aid to staunch bleeding, or for use as a natural pigment for body ornamentation.
Cheviot 'tors'

Long Crags, Housey Crags, Langlee Crags and Tathey Crags, and Cunyan Crags are prominent isolated rock outcrops situated to the east and south of Hedgehope Hill and Cheviot. They were formed by metamorphic changes to the volcanic lavas caused by the eruption of a mass of molten rock from the Cheviot and Hedgehope volcanoes some 400 million years ago. This eventually cooled to form the granite which comprises the central part of the Cheviot massive. This part is today typically covered by heather within a surrounding area of andesite larvas. The circle of harder andesite rocks around Hedgehope and Cheviot make up a 'metamorphic aureole' which provided more resistance to natural weathering than the surrounding softer unchanged rocks leaving rocky 'tors' that were later sculptured by ice.

Great & Little Standrop and other rocky tors to the west of Cheviot which are composed of granite may have similar origin to those of other granite areas of the UK.

Northumberland National Park Geodiversity Audit & Action Plan: LinkExternal link

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NT9521, 46 images   (more nearby search)
Photographer
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Date Taken
Friday, 30 March, 2012   (more nearby)
Submitted
Wednesday, 4 April, 2012
Geographical Context
Geological interest  Uplands  Moorland  Rocks, Scree, Cliffs 
Subject Location
OSGB36: geotagged! NT 9570 2179 [10m precision]
WGS84: 55:29.3934N 2:4.1763W
Camera Location
OSGB36: geotagged! NT 9570 2179
View Direction
EAST (about 90 degrees)
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