Data/hora: 06/06/2024 03:28:12

Provedor de dados: 	16	
País: 	Netherlands	
Título: 	Wood opals from Yakuplu, Turkey: their properties and genesis	
Autores: 	Buurman, P.	
Data: 	1975	
Ano: 	1975	
Palavras-chave: 	38.30.	
Resumo: 	Fossil driftwood from Sarmatian (Late Miocene) gravel deposits near Yakuplu, Turkey, ranges between lignitic and opaline. Opalization occurred in various stages of decay. The stage of decay of the wood and the eventual admixture of detritic clay influenced the crystallinity and the dehydration characteristics of the opal. Opals influenced by the host rock seem to have montmorillonitic suprastructures. Opalization was probably the result of the weathering of volcanic ash layers in the overlying strata.	
Tipo: 	Article / Letter to the editor	
Identificador: 	http://www.repository.naturalis.nl/record/317409

http://dare.uva.nl/cgi/arno/show.cgi?fid=148695	
Formato: 	application/pdf	
Fonte: 	Scripta Geologica (0375-7587) vol.30 (1975) p.1	
Fonte: 	(c) Naturalis