The Paleogene Richmond Formation of Jamaica: Not an impact-related succession
Scripta Geologica , Volume 136 p. 107- 112
James speculated that Paleogene ‘flysch-wildflysch’ deposits of the Caribbean region may all have a related genesis associated with one or more bolide impacts. The principal arguments used to promote this idea were: (1) that many successions may have been dated incorrectly and are actually related to the end Cretaceous (K/T) event and/or other bolide impacts; and (2) common olistostromes may have been transported by impact-related phenomena. The deposits discussed by James included the Richmond and Font Hill formations of Jamaica. The Richmond Formation of the Wagwater Belt is Paleogene, not Cretaceous, and olistostromic blocks are a common feature of the sedimentary succession of Jamaica. No extraterrestrial event need be invoked to support their deposition.
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Donovan, S.K, & Pickerill, R.K. (2009). The Paleogene Richmond Formation of Jamaica: Not an impact-related succession. Scripta Geologica, 136, 107–112.