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TitlePilot study of fossil evidence of onshore-directed storm events in estuarine sediments: Chezzetcook Inlet, Nova Scotia
AuthorSchafer, C T; Medioli, F S
SourceCanadian Journal of Earth Sciences vol. 46, no. 3, 2009 p. 193-205,
Alt SeriesEarth Sciences Sector, Contribution Series 20090027
PublisherCanadian Science Publishing
Mediapaper; on-line; digital
File formatpdf
ProvinceNova Scotia
AreaChezzetcook Inlet
Lat/Long WENS-63.5000 -63.0000 44.7500 44.5000
Subjectspaleontology; geochronology; Nature and Environment; fossil assemblages; fossil distribution; fossils; depositional environment; depositional history; sedimentary rocks; sedimentation; estuarine deposits; Foraminfera
Illustrationslocation maps; photographs; tables
ProgramClimate Change Geoscience
Released2009 03 01
AbstractSediment cores collected from the landward side of a baymouth barrier in a lower estuarine environment of Chezzetcook Inlet contain proxy "signals" of onshore-directed storms that are manifested by the sudden appearance of benthic and planktic Foraminifera species. These taxa have been eroded and transported from adjacent inner shelf open-marine environments. One relatively strong onshore-directed storm (hurricane?) event appears to have caused a reduction in seawater exchange in the southeastern part of the inlet that persisted for at least several decades. In this particular barrier-protected lower estuarine depositional environment, foraminiferal storm-indicator species distributions in older sediments seem to be spatially patchy. Consequently, in this Chezzetcook depositional setting, the successful reconstruction of a complete proxy storm record will require replicate coring and high-frequency core subsampling strategies.

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