Image from the Biodiversity Heritage Library.
Contributed by Yale Peabody Museum of Natural History.
| www.biodiversitylibrary.org
Transcription
Central Sequence
Lower Cambrian
Monkton quartzite 300+
Dinrosli marble 100-400
Gallett dolomite 50-800
Colchester for. 0-500
Middle Cambrian
Milton dol. 500
Upper Cambrian - Ordovician
Highgate slate-li. 300
Belleburn marble - 400
Ordovician
Dranton 30
Dillistm li. and dol. 500
Georgia slate 3500