Neogene planktonic foraminiferal biostratigraphy and evolution; equatorial to subantarctic, South Pacific

Author(s): Srinivasan, M. S.; Kennett, J. P.
Author Affiliation(s): Primary:
University of Rhode Island, Graduate School of Oceanography, Kingston, RI, United States
Volume Title: Cenozoic paleoceanography
Volume Author(s): Kennett, J. P., prefacer
Source: Cenozoic paleoceanography, prefaced by J. P. Kennett. Marine Micropaleontology, 6(5-6), p.499-533. Publisher: Elsevier, Amsterdam, Netherlands. ISSN: 0377-8398 CODEN: MAMIDH
Note: In English. 43 refs.; illus., incl. 1 plate, 1 table, sketch map
Summary: Detailed planktonic foraminiferal zonations have been established for the Neogene (Latest Oligocene through present) in six DSDP sites in the South Pacific ranging from equatorial to subantarctic latitudes (48 S). Two basic zonal schemes are readily recognized: tropical and temperate. The tropical zonation is best developed in DSDP Site 289 and the temperate zonation in Sites 206, 207A and 284. Tropical and temperate zonations can be linked by a warm subtropical scheme in Site 208, because this sequence includes a mixture of tropical and temperate elements. A site located close to the Subantarctic Convergence (Site 281) contains a zonation largely of temperate character, but the presence of cooler elements and some differences in biostratigraphic ranges have required a slightly different biostratigraphic scheme. Although two broad schemes are recognized, none of the biostratigraphic sequences are identical between any of the sites. This reflects differences in biogeography, evolution and diachronous extinction at various latitudes during the entire Neogene. Diachronism in biostratigraphic ranges continue to create difficulties in correlation across such wide latitudes. (Auth. mod.)
Year of Publication: 1981
Research Program: DSDP Deep Sea Drilling Project
Key Words: 12 Stratigraphy, Historical Geology and Paleoecology; Assemblages; Biostratigraphy; Biozones; Cenozoic; DSDP Site 206; DSDP Site 207; DSDP Site 208; DSDP Site 281; DSDP Site 284; DSDP Site 289; Deep Sea Drilling Project; Equatorial Pacific; Foraminifera; Invertebrata; Leg 21; Leg 29; Leg 30; Lord Howe Rise; Microfossils; Miocene; Neogene; New Caledonia Basin; Ontong Java Plateau; Pacific Ocean; Phylogeny; Planktonic taxa; Pliocene; Protista; South Pacific; South Tasman Rise; Southwest Pacific; Tasman Sea; Tertiary; West Pacific
Coordinates: S003000 S003000 E1583000 E1583000
S260600 S260600 E1611300 E1611300
S403000 S320000 E1674000 E1650000
S480000 S480000 E1474500 E1474500
Record ID: 2009022799
Copyright Information: GeoRef, Copyright 2019 American Geosciences Institute. Reference includes data from the Antarctic Bibliography, United States