(Table 2) Relative abundance of planktonic foraminifera species in Pliocene - Early Quaternary sediments from ODP Hole 111-677A ...

• Main Author: Bubenshchikova, N V
• Format: Dataset
• Language: English
• Published: PANGAEA 2003
• Subjects: Sample code/label; DEPTH, sediment/rock; Depth, top/min; Depth, bottom/max; Planktic foraminifera zone; Globoquadrina venezuelana; Globigerina nepenthes; Globorotalia margaritae; Sphaeroidinellopsis kochi; Sphaeroidinellopsis seminulina; Sphaeroidinellopsis paenedehiscens; Dentoglobigerina altispira; Globorotalia puncticulata; Globorotalia exilis; Globorotalia multicamerata; Globorotalia pertenuis; Globorotalia limbata; Globigerinoides extremus; Globigerinoides obliquus; Globigerinella praecalida; Globigerina decoraperta; Globorotalia flexuosa; Neogloboquadrina acostaensis; Neogloboquadrina humerosa; Pulleniatina primalis; Beella praedigitata; Globoquadrina pseudofoliata; Globorotalia menardii; Globorotalia scitula; Globorotalia pumilio; Globigerinoides ruber; Globigerinoides conglobatus; Globigerinoides quadrilobatus; Globigerinoides sacculifer; Globigerina bulloides; Globigerina falconensis; Globigerina quinqueloba; Globigerinita uvula; Neogloboquadrina pachyderma sinistral; Neogloboquadrina pachyderma dextral; Neogloboquadrina pseudopima; Orbulina suturalis; Orbulina universa; Orbulina bilobata; Candeina nitida; Globorotaloides hexagonus; Globigerinella aequilateralis; Streptochilus tokelauae; Turborotalia humilis; Sphaeroidinella dehiscens; Neogloboquadrina pachyderma; Planktonic foraminifera
• Online Access: https://dx.doi.org/10.1594/pangaea.778847; https://doi.pangaea.de/10.1594/PANGAEA.778847

Planktonic foraminifera from Pliocene - Early Quaternary sediments of ODP Hole 111-677A were studied in detail. It was shown that the majority of detected zonal taxa are reliable biostratigraphic reference points. Between 30 and 210 m in the core zones of planktonic foraminifera from PL1b to Pt1 (according to the W.A. Berggren scale) were distinguished. Changes of planktonic foraminifera complexes from sediments of Hole 111-677A are closely associated with climate-controlled development of surface water masses of the Eastern Equatorial Pacific during 4.6-0.65 million years ago. Sharp decrease in equatorial-tropical species about 3.4 million years ago correlated with cessation of surface water exchange between tropical regions of the Pacific and Atlantic oceans due to formation of the Central American isthmus. The paleotemperature method of M.S Barash was used for reconstructing surface temperatures. Maximum temperatures were reconstructed in late Early Pliocene (26.4°C) and in Late Pliocene (26.6°C) and ... : >0 = species is present. ...