(Appendix A) Radiolarian abundances in ODP Hole 175-1084A ...

• Main Authors: Lazarus, David B, Bittniok, Beatrice, Diester-Haass, Lieselotte, Billups, Katharina, Ogawa, Yujiro, Takahashi, Kozo, Meyers, Philip A
• Format: Dataset
• Language: English
• Published: PANGAEA 2008
• Subjects: Sample code/label; AGE; DEPTH, sediment/rock; Phelodinium cranwelliae; Uvigerina spp., δ18O; Radiolarians, intermediate/radiolarians, warm ratio; Radiolarians, warm; Radiolarians, temperate; Radiolarians, intermediate water depth; Radiolarians, upwelling; Carbon, organic, total; Accumulation rate, mass; Accumulation rate, benthic foraminifera by number; Primary production of carbon; Uvigerina spp.; Calcium carbonate; Opal, biogenic silica; Radiolarians; Acrosphaera murrayana; Actinomma antarcticum; Actinomma leptodermum; Actinomma popofskii; Actinomma boreale; Acanthosphaera corlocae; Cladococcus sp.; Heliodiscus asteriscus; Didymocyrtis tetrathalamus; Amphirhopalum ypsilon; Dictiocoryne profunda; Spongocore cylindrica; Spongopyle osculosa group; Spongotrochus venustum; Octopyle stenozona; Larcopyle buetschlii; Lithelius minor; Ommatodiscus irregularis; Arachnocorys circumtexta; Plectacantha cresmastoplegma; Helotholus histricosa; Lithomelissa setosa; Lithomelissa hystrix; Antarctissa spp.; Pseudodictyophimus gracilipes; Botryocyrtis scutum; Carpocaniidae indeterminata; Saccospyris antarctica; Cornutella profunda; Peripyramis circumtexta; Cycladophora bicornis; Cycladophora conica; Antarc*; Antarctica
• Online Access: https://dx.doi.org/10.1594/pangaea.773654; https://doi.pangaea.de/10.1594/PANGAEA.773654

The changing composition of radiolarian faunas from late Neogene deep-sea sediments has been used in recent years as a proxy for changes in marine paleoproductivity. We examine radiolarian faunas, organic carbon content (TOC), opal and coarse-fraction components over the last 270,000 years in sediments from ODP Hole 1084A, drilled in a high productivity upwelling region within the Benguela Upwelling System off the west coast of Africa. Age control is provided by stable oxygen isotope measurements of benthic foraminifera. Prior research has established that late Pleistocene glacial intervals in this upwelling system generally had higher productivity than interglacials. The radiolarian WADE (water-depth ecology) paleoproductivity index correlates well with TOC and opal in these samples, and all three parameters change in synchrony with the benthic isotope curve over all but the MIS 5e–6 time interval. WADE inferred productivity is significantly higher in glacials than interglacials. We conclude that the WADE ... : Supplement to: Lazarus, David B; Bittniok, Beatrice; Diester-Haass, Lieselotte; Billups, Katharina; Ogawa, Yujiro; Takahashi, Kozo; Meyers, Philip A (2008): Radiolarian and sedimentologic paleoproductivity proxies in late Pleistocene sediments of the Benguela Upwelling System, ODP Site 1084. Marine Micropaleontology, 68(3-4), 223-235 ...