10.1594/PANGAEA.706057
Keller, Gerta
Gerta
Keller
0000-0001-5518-2014
Distribution of planktonic foraminifera in DSDP Hole 31-296 (Table III)
PANGAEA
1979
ORDINAL NUMBER
Sample code/label
Epoch
Planktic foraminifera zone
Foraminifera, planktic preservation
Foraminifera, planktic indeterminata
Globigerina apertura
Globigerina bulloides
Globigerina bulbosa
Globigerina decoraperta
Globigerina druryi
Globigerina falconensis
Globigerina foliata
Globigerina praebulloides
Globigerina praedigitata
Globigerina quadrilatera
Globigerina quinqueloba
Globigerina rubescens
Globigerina umbilicata
Globigerina woodi
Globigerinella siphonifera
Globigerinita glutinata
Globigerinita iota
Globigerinita tenellus
Globigerinita uvula
Globigerinoides bollii
Globigerinoides conglobatus
Globigerinoides fistulosus
Globigerinoides obliquus
Globigerinoides obliquus extremus
Globigerinoides quadrilobatus
Globigerinoides ruber
Globigerinoides sacculifer
Globoquadrina altispira
Globoquadrina venezuelana
Globorotalia bononiensis
Globorotalia cibaoensis
Globorotalia conoidea
Globorotalia conomiozea
Globorotalia cf. conomiozea
Globorotalia crassaformis
Globorotalia crassaformis oceanica
Globorotalia crassaformis ronda
Globorotalia crassula viola
Globorotalia cultrata
Globorotalia hirsuta
Globorotalia inflata
Globorotalia inflata praeinflata
Globorotalia margaritae
Globorotalia menardii neoflexuosa
Globorotalia miozea
Globorotalia cf. miozea
Globorotalia miocenica
Globorotalia multicamerata
Globorotalia parkerae
Globorotalia plesiotumida
Globorotalia praehirsuta
Globorotalia praemiocenica
Globorotalia cf. praemiocenica
Globorotalia praescitula sinistral
Globorotalia praescitula
Globorotalia cf. puncticulata
Globorotalia scitula
Globorotalia tosaensis
Globorotalia truncatulinoides
Globorotalia tumida
Globorotalia tumida flexuosa
Globorotalia ungulata
Globorotaloides hexagonus
Hastigerina aequilateralis
Neogloboquadrina acostaensis
Neogloboquadrina cf. acostaensis
Neogloboquadrina cf. continuosa
Neogloboquadrina dutertrei
Neogloboquadrina humerosa
Neogloboquadrina aff. humerosa
Globigerina nepenthes
Neogloboquadrina pachyderma
Globoquadrina asanoi
Neogloboquadrina pachyderma sinistral
Orbulina biloba
Orbulina glomerosa
Orbulina suturalis
Orbulina universa
Pulleniatina obliquiloculata
Pulleniatina obliquiloculata finalis
Pulleniatina primalis
Sphaeroidinella dehiscens
Sphaeroidinellopsis subdehiscens
Sphaeroidinellopsis seminulina
Sphaeroidinellopsis seminulina kochi
Foraminifera, planktic
Drilling/drill rig
DSDP/ODP/IODP sample designation
Visual description
Counting >62 µm fraction
Leg31
Glomar Challenger
Deep Sea Drilling Project (DSDP)
1973-07-10T00:00:00
en
Supplementary Dataset
10.1016/0031-0182(79)90097-X
5757 data points
text/tab-separated-values
Creative Commons Attribution 3.0 Unported
Late Neogene planktonic foraminiferal biostratigraphy of DSDP Site 296, Leg 31, reveals this site as an ideal reference section for correlation of Blow's low-latitude zonation with the mid-latitude zonation for temperate faunal assemblages developed in this paper and earlier for DSDP Site 310, Leg 31 (Keller). Abundance of temperate species of Globorotalia (G. inflata, G. puncticulata, G. crassaformis, G. conomiozea) permit correlation with the zonal subdivision developed at Site 310 based on these species. Evolutionary changes within the Globorotalia inflata group also appear to be consistent biostratigraphie markers in mid latitudes; a primitive variety of this species first appears at about 3.3-3.1 Ma, G. inflata praeinflata appears at about 2.6 Ma, and the modern form appears at about 2.2-2.1 Ma.
Quantitative analyses of planktonic foraminifera at DSDP Site 296 reveal an inversely reciprocal frequency oscillation between species of Globorotalia and the Globigerina-Globigerinita group. Cool climatic periods are characterized by high frequencies in the Globigerina-Globigerinita group and low frequencies in the Globorotalia group, whereas warm intervals are marked by high frequencies in the Globorotalia group and low frequencies in the Globigerina-Globigerinita group. Five cool paleoclimatic events can be recognized between early Pliocene and late Pleistocene: 4.4 Ma, 3.2-3.1 Ma, 2.4-2.2 Ma, 1.2 Ma, and 0.7 Ma. These paleoclimatic/paleoceanographic events have also been recognized in planktonic foraminifera of the Central and Northeast Pacific DSDP Sites 310 and 173 and also correlate to cold events recognized in oxygen isotope measurements of DSDP Site 310 and in equatorial Pacific cores.
Sample 31-296-20-4,100-102 was contaminated and therefore not included in the investigation
Supplement to: Keller, Gerta (1979): Late Neogene planktonic foraminiferal biostratigraphy and paleoceanography of the Northwest Pacific DSDP Site 296. Palaeogeography, Palaeoclimatology, Palaeoecology, 27, 129-154
133.5253
29.3402
North Pacific/Philippine Sea/RIDGE