NDLI: Modern benthic foraminifera on Banco Chinchorro, Quintana Roo, Mexico

Content Provider	Springer Nature Link
Author	Gischler, Eberhard Möder, Andrea
Copyright Year	2008
Abstract	Benthic foraminiferal assemblages may be used as environmental indicators on Banco Chinchorro, an isolated carbonate platform off the eastern coast of the Yucatan Peninsula. Seventy-seven species from 44 genera were identified in 14 surface sediment samples, which were collected along an E–W windward-to-leeward transect across the platform. A total of 15,493 foraminiferal tests (max. 1,200 tests per sample) were investigated and served as the basis of this study. As many taxa range throughout several platform zones, assemblages are better environmental indicators as compared to individual species. Four foraminiferal assemblages were identified using statistical methods including (1) a Homotrema assemblage, which occurs at the windward platform margin, (2) an Archaias-Homotrema assemblage which is found on the leeward margin and on platform interior coral patch reefs, (3) a Quinqueloculininae-Archaias-Rosalina assemblage of the western platform, and (4) an Archaias-Quinqueloculininae assemblage characteristic of the eastern platform interior. Environmental factors which influence variation in foraminiferal distribution and diversity on Banco Chinchorro include exposure to waves and currents and substrate (plant and algal growth). Sediment transport does not play a major role in Banco Chinchorro based on the observation that there are only limited amounts of taxa found outside their typical habitats, and, that mean grain-size and sorting of foraminiferal tests do not exhibit clear patterns.
Starting Page	27
Ending Page	35
Page Count	9
File Format	PDF
ISSN	01729179
Journal	Facies
Volume Number	55
Issue Number	1
e-ISSN	16124820
Language	English
Publisher	Springer-Verlag
Publisher Date	2008-10-07
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Reef Mexico Chinchorro Foraminifera Holocene Ecology Paleontology Geochemistry Biogeosciences Sedimentology
Content Type	Text
Resource Type	Article
Subject	Geology Stratigraphy Paleontology

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