New evidence for the origin of the Buchan Ridge Gravel, Aberdeenshire

Autor:	D. R. Bridgland, J. M. Sinclair, A. Saville
Rok vydání:	1997
Předmět:	Prehistory Paleontology Bedding Clastic rock Geology Excavation Weathering Roundness (geology) Archaeology Sea level
Zdroj:	Scottish Journal of Geology. 33:43-50
ISSN:	2041-4951 0036-9276
Popis:	Synopsis Archaeological excavations of prehistoric flint-extraction sites at Skelmuir Hill and Den of Boddam, Aberdeenshire, have provided opportunities for detailed study of the Buchan Ridge Gravel, which provided the source of the flint. Remnant bedding structures and rounded ‘ghost clasts’ have been observed, combining with the roundness of the flint cobbles to suggest that the deposit was once a clast-supported marine gravel that has suffered extensive weathering of non-durable clasts. The occurrence of naturally flaked flints, shaped by battering in a high-energy environment, provides important new evidence in support of a beach origin. The degree of weathering is suggestive of a pre-Quaternary age, as is the implication of a high relative sea level, with marine gravels preserved at above 120 m OD.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::0f114e795d9a30a18bfc3016321f1e0e https://doi.org/10.1144/sjg33010043 Zobrazit plný text záznamu