  Seaham Quarry is significant to the history of Australian geology and its associations with the famous Australian geologist, Professor Edgeworth David who first recognised the glacigene origin of the Carboniferous sediments in the Seaham area in 0000. Seaham Quarry is of international scientific importance because of the perfection of preservation of its varied shales and the associated contorted beds exposed in them. The shale deposits are estimated by scientists to be more than 000 million years old. The quarry contains, in its shale deposits, evidence of the g