'Original entry: Lamprophyre Adjacent To Reef Of Greywacke'
Stratigraphy
Not entered
Comments
Samples collected from N to S across a 7 m thick dyke of fresh 'diorite' in Silurian greywacke. See also S. 250, 22859, 70509, 70670, 73277 - 73281, 73283 - 73286