Deciphering the geology of some Darriwilian–Sandbian (Ordovician) ‘ghost’ formations in the UK and North America using olistoliths in marine debris flows

• Published in: Geological Magazine
• Main Authors: Bergström, Stig M., FERRETTI, Annalisa
• Other Authors: Ferretti, Annalisa
• Format: Article in Journal/Newspaper
• Language: English
• Published: 2018
• Subjects: Conodont biostratigraphy; Ordovician; olistoliths; palaeobiogeography; Recurrent Species Associations; Cobbs Arm; Garn; Newfoundland
• Online Access: http://hdl.handle.net/11380/1136597; https://doi.org/10.1017/S0016756817000383

Olistostromes with calcareous olistoliths are rare components in the Ordovician successions inNWEurope and North America, having been described from only a small number of localities. One of the best exposed, but least known, is in the Garn Formation in coastal outcrops in Anglesey in northwestern W...