Planktonic foraminiferal flux and shell geochemistry data in the sediment trap time series JAM 1-3 off south Java


Autoria(s): Mohtadi, Mahyar
Cobertura

MEDIAN LATITUDE: -8.284420 * MEDIAN LONGITUDE: 108.067024 * SOUTH-BOUND LATITUDE: -8.291700 * WEST-BOUND LONGITUDE: 108.033300 * NORTH-BOUND LATITUDE: -8.268300 * EAST-BOUND LONGITUDE: 108.141700 * DATE/TIME START: 2000-11-11T00:00:00 * DATE/TIME END: 2003-07-06T00:00:00

Data(s)

16/02/2010

Resumo

Results from sediment trap experiments conducted in the seasonal upwelling area off south Java from November 2000 until July 2003 revealed significant monsoon-, El Niño-Southern Oscillation-, and Indian Ocean Dipole-induced seasonal and interannual variations in flux and shell geochemistry of planktonic foraminifera. Surface net primary production rates together with total and species-specific planktonic foraminiferal flux rates were highest during the SE monsoon-induced coastal upwelling period from July to October, with three species Globigerina bulloides, Neogloboquadrina pachyderma dex., and Globigerinita glutinata contributing to 40% of the total foraminiferal flux. Shell stable oxygen isotopes (d18O) and Mg/Ca data of Globigerinoides ruber sensu stricto (s.s.), G. ruber sensu lato (s.l.), Neogloboquadrina dutertrei, Pulleniatina obliquiloculata, and Globorotalia menardii in the sediment trap time series recorded surface and subsurface conditions. We infer habitats of 0-30 m for G. ruber at the mixed layer depth, 60-80 m (60-90 m) for P. obliquiloculata (N. dutertrei) at the upper thermocline depth, and 90-110 m (100-150 m) for G. menardii in the 355-500 mm (>500 µm) size fraction corresponding to the (lower) thermocline depth in the study area. Shell Mg/Ca ratio of G. ruber (s.l. and s.s.) reveals an exponential relationship with temperature that agrees with published relationships particularly with the Anand et al. (2003) equations. Flux-weighted foraminiferal data in sediment trap are consistent with average values in surface sediment samples off SW Indonesia. This consistency confirms the excellent potential of these proxies for reconstructing past environmental conditions in this part of the ocean realm.

Formato

application/zip, 3 datasets

Identificador

https://doi.pangaea.de/10.1594/PANGAEA.733785

doi:10.1594/PANGAEA.733785

Idioma(s)

en

Publicador

PANGAEA

Direitos

Access constraints: access rights needed

Fonte

Supplement to: Mohtadi, Mahyar; Steinke, Stephan; Groeneveld, Jeroen; Fink, Hiske G; Rixen, Tim; Hebbeln, Dierk; Donner, Barbara; Herunadi, Bambang (2009): Low-latitude control on seasonal and interannual changes in planktonic foraminiferal flux and shell geochemistry off south Java: A sediment trap study. Paleoceanography, 24, PA1201, doi:10.1029/2008PA001636

Palavras-Chave #>500 µm; 250-355 µm; 355-500 µm; Calculated; Calculated, see reference(s); Center for Marine Environmental Sciences; Date/Time; DATE/TIME; Date/time end; Date/time start; DEPTH, water; Depth water; Duration; Duration, number of days; Event; Foraminifera, planktic flux; Foram plankt flux; Fragm; Fragments; G. adamsi; G. bulloides flux; G. calida flux; G. conglobatus flux; G. digitata flux; G. falconensis flux; G. glutinata flux; G. hexagona; G. hirsuta flux; G. menardii d18O; G. menardii flux; G. ruber d18O; G. ruber flux; G. ruber s.l. 250-355 µm; G. ruber s.s. 250-355 µm; G. rubescens flux; G. sacculifer flux; G. scitula flux; G. siphonifera flux; G. theyeri; G. tumida flux; G. ungulata flux; G. uvula flux; Globigerina bulloides flux; Globigerina falconensis flux; Globigerinella adamsi; Globigerinella calida flux; Globigerinella digitata flux; Globigerinella siphonifera flux; Globigerinita glutinata flux; Globigerinita uvula flux; Globigerinoides conglobatus flux; Globigerinoides ruber, d18O; Globigerinoides ruber flux; Globigerinoides sacculifer flux; Globoquadrina hexagona; Globorotalia hirsuta flux; Globorotalia menardii, d18O; Globorotalia menardii flux; Globorotalia scitula flux; Globorotalia theyeri; Globorotalia tumida flux; Globorotalia ungulata flux; Globoturborotalita rubescens flux; H. digitata; Hastigerina digitata; JAM-1; JAM-2; JAM-3; Label; Magnesium/Calcium ratio; MARUM; Mass spectrometer Finnigan MAT 251; Mg/Ca; Monsoon; MOOR; Mooring; N. conglomerata; N. dutertrei d18O; N. dutertrei flux; N. pachyderma d flux; N. pachyderma s flux; Neogloboquadrina conglomerata; Neogloboquadrina dutertrei, d18O; Neogloboquadrina dutertrei flux; Neogloboquadrina pachyderma dextral flux; Neogloboquadrina pachyderma sinistral flux; O. universa flux; off south Java; Orbulina universa flux; P. obliqu. d18O; P. obliqu. flux; Pulleniatina obliquiloculata, d18O; Pulleniatina obliquiloculata flux; S. dehiscens; Sample code/label; Sphaeroidinella dehiscens; Unit: mmol/mol, >500 µm; Unit: mmol/mol, 250-355 µm; Unit: mmol/mol, 355-500 µm; Unit: mmol/mol, G. ruber s.l. 250-355 µm; Unit: mmol/mol, G. ruber s.s. 250-355 µm; Wind dir descr; Wind direction description
Tipo

Dataset