The geology superimposed on the photo. The geology has been taken from Plate 3 on pages 28 and 29 of the Memoir. I have not studied the rocks of the quarry. I am not a climber and hammering is forbidden, so I have taken the work of the Survey as being correct. I think I have put the contacts in the correct places but replicating the Surveys contacts onto my photographs is subject to error. The Gully exists because the Gully Oolite is more easily erodible than the dolomite.Black Rock Quarry and Gully Quarry with the Gulley between them. The Gully is often called the Goat Gully as it has a population of goats used for vegetation management purposes.A panorama of Black Rock Quarry taken from the crest of the gorge opposite the quarry. The geology superimposed on the photo. The geology has been taken from Plate 3 on pages 28 and 29 of the Memoir. I think (and hope!) that I have put the contacts in the places suggested by the Survey but this is a different photo from that used by the survey. The only mention of “Fish Beds” is on the photo, equivalent to this one, in the Memoir and the vertical section in Fig. 8.A panorama of Black Rock Quarry taken from the crest of the gorge opposite the quarry. The combining of the photos was successful as far as the rocks were concerned, less so for the nearby tree branches.A panorama of Black Rock Quarry taken from the pavement of The Portway.A panorama of Black Rock Quarry taken from the pavement of The Portway.A panorama of Black Rock Quarry taken from the pavement of The Portway.A panorama of Gully Quarry taken from the pavement of The Portway.Gully Quarry, showing the contact between the Gulley Oolite and the overlying Clifton Down Mudstone.Gully Quarry, showing the contact between the Gulley Oolite and the overlying Clifton Down Mudstone.Black Rock Quarry from within the trees on the opposite side of the gorge.
