(Table 1) Planktonic foraminifera counts and stable oxygen isotope ratios of Pacific Ocean surface sediments

Daniel Rincón-Martínez; Silke Steph; Frank Lamy; Alan C Mix; Ralf Tiedemann

doi:10.1594/pangaea.774728

(Table 1) Planktonic foraminifera counts and stable oxygen isotope ratios of Pacific Ocean surface sediments

Citation

Rincón-Martínez D, Steph S, Lamy F, Mix A C, Tiedemann R (2011). (Table 1) Planktonic foraminifera counts and stable oxygen isotope ratios of Pacific Ocean surface sediments. PANGAEA - Data Publisher for Earth & Environmental Science. Occurrence dataset https://doi.org/10.1594/pangaea.774728 accessed via GBIF.org on 2024-11-03.

Description

Core-top samples from the eastern tropical Pacific (10°N to 20°S) were used to test whether the ratio between Globorotalia menardii cultrata and Neogloboquadrina dutertrei abundance (Rc/d) and the oxygen isotope composition (?18O) of planktonic foraminifera can be used as proxies for the latitudinal position of the Equatorial Front. Specifically, this study compares the ?18O values of eight species of planktonic foraminifera (Globigerinoides ruber sensu stricto (ss) and sensu lato (sl), Globigerinoides sacculifer, Globigerinoides triloba, Pulleniatina obliquiloculata, Neogloboquadrina dutertrei, Globorotalia menardii menardii, Globorotalia menardii cultrata and Globorotalia tumida) with the seasonal hydrography of the region, and evaluates the application of each species or combination of species for paleoceanographic reconstructions. The results are consistent with sea surface temperature and water column stratification patterns. We found that in samples north of 1°N, the Rc/d values tend to be higher and d18O values of G. ruber, G. sacculifer, G. triloba, P. obliquiloculata, N. dutertrei, and G. menardii cultrata tend to be lower than those from samples located south of 1°N. We suggest that the combined use of Rc/d and the d18O difference between G. ruber and G. tumida or between P. obliquiloculata and G. tumida are the most suitable tools for reconstructing changes in the latitudinal position of the Equatorial Front and changes in the thermal stratification of the upper water column in the eastern tropical Pacific.

Taxonomic Coverages

Chromista
rank: kingdom
Foraminifera
rank: kingdom

Geographic Coverages

Event: 202-1239A, South Pacific Ocean ; Event: ME0005A-14MC2, South Pacific Ocean ; Event: ME0005A-15MC6, South Pacific Ocean ; Event: ME0005A-20MC8, South Pacific Ocean ; Event: ME0005A-21MC3, South Pacific Ocean ; Event: ME0005A-25MC5, South Pacific Ocean ; Event: ME0005A-29MC2, South Pacific Ocean ; Event: ME0005A-35MC1, South Pacific Ocean ; Event: ME0005A-38MC2, South Pacific Ocean ; Event: ME0005A-41MC2, South Pacific Ocean ; Event: OC73-3-07, South Pacific Ocean ; Event: OC73-3-08, South Pacific Ocean ; Event: PLDS-2-33, Pacific Ocean ; Event: RP1OC70-182P, South Pacific Ocean ; Event: RP1OC70-186P, South Pacific Ocean ; Event: RR9702A-62MC3, South Pacific Ocean ; Event: RR9702A-64MC1, South Pacific Ocean ; Event: RR9702A-66MC1, South Pacific Ocean ; Event: RR9702A-76TC, South Pacific Ocean ; Event: VNTR01-10GC, Eastern Equatorial Pacific ; Event: VNTR01-11GC, ; Event: VNTR01-12GC, ; Event: VNTR01-13GC, Eastern Equatorial Pacific ; Event: VNTR01-14GC, ; Event: VNTR01-15GC, ; Event: VNTR01-20GC, ; Event: VNTR01-21GC, ; Event: W7706-47, Pacific ; Event: W7706-52, Pacific ; Event: W7706-53, Pacific ; Event: W7706-57, Pacific ; Event: W7706-58, Pacific ; Event: W7706-68GC, South Pacific Ocean ; Event: W7706-69, South Pacific Ocean ; Event: W7706-70GC, South Pacific Ocean ; Event: W7706-71GC, South Pacific Ocean ; Event: W7706-72, South Pacific Ocean ; Event: W7706-73, South Pacific Ocean ; Event: W7706-78, Pacific ; Event: Y69-75M2, Pacific ; Event: Y69-76M3, Pacific ; Event: Y69-83, South Pacific Ocean ; Event: Y69-84, South Pacific Ocean ; Event: Y69-86P, South Pacific Ocean ; Event: Y69-97, South Pacific Ocean ; Event: Y69-104MG, South Pacific Ocean ; Event: Y71-03-06, ; Event: Y71-03-08, ; Event: Y71-03-10A, ; Event: Y71-03-11, ; Event: Y71-03-13, ; Event: Y71-03-20, ; Event: Y71-03-22, ; Event: Y71-07-31, ; Event: Y71-07-33, ; Event: Y71-07-34, ; Event: Y73-03-006, ; Event: Y73-03-011, ; Event: Y73-03-015, ; Event: Y73-03-023, ; Event: Y73-04-026, ;

Bibliographic Citations

Contacts

Daniel Rincón-Martínez
originator

Silke Steph
originator

Frank Lamy
originator

Alan C Mix
originator

Ralf Tiedemann
originator

metadata author
PANGAEA - Data Publisher for Earth & Environmental Science
email: info@pangaea.de
homepage: https://www.pangaea.de

Frank-Oliver Glöckner
administrative point of contact

Robert Huber
administrative point of contact