02457nas a2200409   4500000000100000000000100001008004100002260002900043653001200072653001600084653001400100653001400114653002300128653001500151653002300166653001200189653002200201100002200223700001700245700002200262700001800284700001900302700001700321700002200338700001900360700002100379700003100400700001900431700001900450700001700469245014000486856005500626300001200681490000700693520133300700020001402033       2009                            d  bBlackwell Publishing Ltd10aAntigua10adebris flow10ageohazard10alandslide10amicropalaeontology10aMontserrat10aradiocarbon dating10aRedonda10aturbidity current1 aJessica Trofimovs1 aJodie Fisher1 aHeather Macdonald1 aPeter Talling1 aStephen Sparks1 aMalcolm Hart1 aChristopher Smart1 aGeorges Boudon1 aChristine Deplus1 aJean-Christophe Komorowski1 aAnne Le Friant1 aSteven Moreton1 aMelanie Leng00aEvidence for carbonate platform failure during rapid sea-level rise; ca 14 000 year old bioclastic flow deposits in the Lesser Antilles  uhttp://dx.doi.org/10.1111/j.1365-3091.2009.01117.x  a735-7590 v573 aBioclastic flow deposits offshore from the Soufrière Hills volcano on Montserrat in the Lesser Antilles were deposited by the largest volume sediment flows near this active volcano in the last 26 kyr. The volume of these deposits exceeds that of the largest historic volcanic dome collapse in the world, which occurred on Montserrat in 2003. These flows were most probably generated by a large submarine slope failure of the carbonate shelf comprising the south-west flank of Antigua or the east flank of Redonda; adjacent islands that are not volcanically active. The bioclastic flow deposits are relatively coarse-grained and either ungraded or poorly graded, and were deposited by non-cohesive debris flow and high density turbidity currents. The bioclastic deposit often comprises multiple sub-units that cannot be correlated between core sites; some located just 2 km apart. Multiple sub-units in the bioclastic deposit result from either flow reflection, stacking of multiple debris flow lobes, and/or multi-stage collapse of the initial landslide. This study provides unusually precise constraints on the age of this mass flow event that occurred at ca 14 ka. Few large submarine landslides have been well dated, but the slope failures that have been dated are commonly associated with periods of rapid sea-level change.  a1365-3091