Quantitative estimates of time-averaging in terebratulidbrachiopod shell accumulations from a modern tropical shelf

TitleQuantitative estimates of time-averaging in terebratulidbrachiopod shell accumulations from a modern tropical shelf
Publication TypeJournal Article
Year of Publication2003
AuthorsCarroll, M, Kowalewski, M, Simoes, MG, Goodfriend, GA
JournalPaleobiology
Volume29
Issue3
Pagination381-402
ISSN0094-8373, 0094-8373
Abstract

Quantitative estimates of time-averaging in marine shellaccumulations available to date are limited primarily toaragonitic mollusk shells. We assessed time-averaging in Holoceneassemblages of calcitic brachiopod shells by direct dating ofindividual specimens of the terebratulid brachiopod Bouchardiarosea. The data were collected from exceptional (brachiopod-rich)shell assemblages, occurring surficially on a tropical mixedcarbonate-siliciclastic shelf (the Southeast Brazilian Bight, SWAtlantic), a setting that provides a good climatic andenvironmental analog for many Paleozoic brachiopod shell beds ofNorth America and Europe. A total of 82 individual brachiopodshells, collected from four shallow (5-25 m) nearshore (

DOI10.1043/0094-8373(2003)029(0381:QEOTIT)2.0.CO;2