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The AAPG/Datapages Combined Publications Database

Journal of Sedimentary Research (SEPM)

Abstract


Journal of Sedimentary Research, Section A: Sedimentary Petrology and Processes
Vol. 64A (1994)No. 1. (January), Pages 140-146

Irregular Fenestrae in Bahamian Eolianites: A Rainstorm-Induced Origin

Roger J. Bain (1), Pascal Kindler (2) (*)

ABSTRACT

Fenestrae are primary or penecontemporaneous pores in the sediment framework that are larger than grain-supported interstices. These features have long been used to characterize peritidal environments and as a sea-level indicator in ancient successions. We report the occurrence of irregular (i.e., equidimensional) fenestrae in Pleistocene eolianites on San Salvador and Eleuthera (Bahamas), as much as 35 m above the coeval sea level. A rainstorm-induced origin is proposed as the mechanism for production of such voids in eolian deposits. We suggest that fenestrae should be used as a sea-level indicator only when they are associated with other intertidal or peritidal characteristics.


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