Igneous sill intruded into sedimentary rock, Blackness
Maker
Thomas McInnes
Production date
24 Aug 1978
Description
View of fine-grained black teschenite (bottom of the image) intruded into sedimentary rocks of the Upper Oil Shale Group (upper part of the image).
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Object detail
A sill is formed by igneous rock intruded horizontally along the bedding plane of sedimentary rock. The rock next to the intrusion is metamorphosed by the heat.
See locality field card
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