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Viewing website implies consent to set cookies on your computer. Full details Swaledale and Arkengarthdale Archaeology Group
Registered Charitable Incorporated Organisation Number 1155775
SWAAG Honorary President:
Tim Laurie FSA

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 *****SWAAG_ID***** 706
 Date Entered 24/03/2013
 Updated on 24/03/2013
 Recorded by Tim Laurie
 Category Geological Record
 Record Type Geological HER
 Site Access Public Access Land
 Record Date 16/03/2013
 Location Orgate Scar
 Civil Parish Marske
 Brit. National Grid NZ 095 021
 Altitude 325m
 Geology Richmond Chert over The Main Limestone
 Record Name Limonite or Yellow Ochre from Orgate Scar
 Record Description Limonite or Yellow Ochre is present at many if not all mineralised faults in the Pennines and elsewhere. Limonite also occurs as Bog Iron Ore. Alteration product of other iron minerals.
 Dimensions See photos
 Additional Notes Yellow ochre and haematite, which provides a red-brown colour, both being ores of iron, were used as a pigment from the Late Palaeolithic onwards. The brownish colour of the limestone in the vicinity of lead veins is due to iron minerals. Haematite nodules have been recorded with lithic scatters of Early Mesolithic Age in Teesdale.
 Image 1 ID 4270         Click image to enlarge
 Image 1 Description Limonite from Orgate Scar.
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