Stratigrafiya i planktonnyye foraminifery pliotsen-chetvertichnykh otlozheniy teplovodnoy oblasti Severnoy Atlantiki  [Stratigraphy and planktonic foraminifers of Pliocene-Quaternary deposits from the low latitude North Atlantic]

Alternate Title(s): Stratigraphy and planktonic foraminifers of Pliocene-Quaternary deposits from the low latitude North Atlantic
Author(s): Krasheninnikov, V. A.; Bylinskaya, M. Ye.
Volume Title: Byulleten' Komissiy po Izucheniyu Chetvertichnogo Perioda
Source: Byulleten' Komissiy po Izucheniyu Chetvertichnogo Perioda, Vol.63, p.46-63. Publisher: Nauka, Moscow, Russian Federation. ISSN: 0366-0907 CODEN: BKICAR
Note: In Russian with English summary. 28 refs.; illus., incl. 3 tables
Summary: The available data on Pliocene-Quaternary planktonic foraminifers from different sites of Legs 4, 41, 45, 46, and 47 DSDP were analyzed. Foraminifer assemblages from equatorial, tropical, and southern subtropical belts were distinguished and compared. In these regions, the single zonal biostratigraphic scheme of H. Bolli (1985) was used. It includes the zones Globorotalia margaritae margaritae, Globorotalia margaritae evoluta, Globorotalia miocenica, Globorotalia tosaensis, Globorotalia truncatulinoides. The latter includes the subzones Globorotalia crassaformis viola, Globorotalia crassaformis hessi, Globigerina calida calida, Globigerina bermudezi, Globorotalia fimbriata. Paleoenvironments of the studied regions were strongly complicated by cold currents and upwelling near the eastern continental margin, which resulted in the formation of strongly variable taxonomic composition of foram assemblages. Frequently the evolutionary datum planes were replaced by local levels of the foraminifer appearance and disappearance. The stratigraphic ranges of species are often interrupted, and this demands the consideration of the total taxonomic composition of an assemblage in order to distinguish correctly biostratigraphic zones.
Year of Publication: 1999
Research Program: DSDP Deep Sea Drilling Project
IPOD International Phase of Ocean Drilling
Key Words: 12 Stratigraphy, Historical Geology and Paleoecology; Antilles; Assemblages; Atlantic Ocean; Biofacies; Biostratigraphy; Biozones; Caribbean Sea; Caribbean region; Cenozoic; Deep Sea Drilling Project; Equatorial region; Faunal studies; Foraminifera; Globigerina; Globigerina bermudezi; Globigerina calida; Globigerinacea; Globigerinidae; Globorotalia; Globorotalia crassaformis; Globorotalia evoluta; Globorotalia fimbriata; Globorotalia margaritae; Globorotalia miocenica; Globorotalia tosaensis; Globorotalia truncatulinoides; Globorotaliidae; Greater Antilles; IPOD; Invertebrata; Jamaica; Leg 4; Leg 41; Leg 45; Leg 46; Microfossils; Neogene; North Atlantic; Planktonic taxa; Pliocene; Protista; Quaternary; Rotaliina; Scale factor; South America; Stratification; Stratotypes; Taxonomy; Tertiary; Upper Cenozoic; Venezuela; West Indies
Coordinates: N050000 N330000 W0100000 W0220000
N220000 N230000 W0430000 W0470000
N225200 N230300 W0442700 W0443700
Record ID: 2003040974
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