Paired δ18O signals of Neogloboquadrina pachyderma (s) and Turborotalita quinqueloba show thermal stratification structure in Nordic Seas

Simstich, Johannes; Sarnthein, Michael; Erlenkeuser, Helmut

doi:10.1016/s0377-8398(02)00165-2

Cited by 238 publications

(283 citation statements)

References 47 publications

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“…307 N. pachyderma reflects/records ambient water properties at varying depths below the 308 thermocline from ca. 25-250 m water depth (e.g., Simstich et al, 2003) where modern day 309 temperature (August 2007) is 3.7-6.7°C and salinity is ~35.1 (Fig. 1B).…”

Section: Evaluation Of Proxies 303mentioning

confidence: 99%

A Late Glacial–Early Holocene multiproxy record from the eastern Fram Strait, Polar North Atlantic

et al. 2014

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21The paleoceanographic development of the eastern Fram Strait during the transition from the 22 cold Late Glacial and into the warm early Holocene was elucidated via a multiproxy study of 23 a marine sediment record retrieved at the western Svalbard slope. The multiproxy study 24 includes analyses of planktic foraminiferal fauna, bulk sediment grain size and CaCO 3 25 content in addition to Mg/Ca ratios and stable isotopes (

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Section: Evaluation Of Proxies 303mentioning

confidence: 99%

A Late Glacial–Early Holocene multiproxy record from the eastern Fram Strait, Polar North Atlantic

et al. 2014

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“…Planktic foraminifers are a useful tool to detect conditions in different water depths. While the polar species Neogloboquadrina pachyderma calcifies its tests at the base of the surface water layer in 50 to 200 m water depth the subpolar species Turborotalia quinqueloba is known as a symbiont-bearing surface dweller (Simstich et al, 2003) bound to seasonally open conditions (Kucera et al, 2005). By using the isotopic composition of planktic and benthic foraminifers, planktic foraminiferal assemblages and lithogenic parameters, our study tracks variations in the intensity of Atlantic Water inflow and changes in the sea ice extent in the eastern Fram Strait, and hence, variations of the heat transfer to the Arctic Ocean during the last two millennia.…”

Section: Accepted M Manuscriptmentioning

confidence: 99%

Atlantic Water advection to the eastern Fram Strait — Multiproxy evidence for late Holocene variability

Werner

Spielhagen

Bauch

et al. 2011

Palaeogeography, Palaeoclimatology, Palaeoecology

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A multiproxy data set of an AMS radiocarbon dated 46 cm long sediment core from the continental margin off western Svalbard reveals multidecadal climatic variability during the past two millennia. Investigation of planktic and benthic stable isotopes, planktic foraminiferal fauna, and lithogenic parameters aims to unveil the Atlantic Water advection to the eastern Fram Strait by intensity, temperatures, and salinities. Atlantic Water has been continuously present at the site over the last 2,000 years. Superimposed on the increase in sea

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“…A multi-species approach has been applied in several studies based on the stable isotope compositions of planktonic foraminifera (d 18 O and d 13 C) (e.g. Mulitza et al, 1997;Spero et al, 2003;Simstich et al, 2003). These studies demonstrate that with a suitable selection of species, it is possible to reconstruct past oceanographic conditions for both the thermocline and mixed layer.…”

Section: Calibration Of Planktonic Foraminiferal Mg/ca Versus Temperamentioning

confidence: 99%

Planktonic foraminiferal Mg/Ca as a proxy for past oceanic temperatures: a methodological overview and data compilation for the Last Glacial Maximum

Barker

Cacho

Benway

et al. 2005

Quaternary Science Reviews

235

163

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As part of the Multi-proxy Approach for the Reconstruction of the Glacial Ocean (MARGO) incentive, published and unpublished temperature reconstructions for the Last Glacial Maximum (LGM) based on planktonic foraminiferal Mg/Ca ratios have been synthesised and made available in an online database. Development and applications of Mg/Ca thermometry are described in order to illustrate the current state of the method. Various attempts to calibrate foraminiferal Mg/Ca ratios with temperature, including culture, trap and core-top approaches have given very consistent results although differences in methodological techniques can produce offsets between laboratories which need to be assessed and accounted for where possible. Dissolution of foraminiferal calcite at the sea-floor generally causes a lowering of Mg/Ca ratios. This effect requires further study in order to account and potentially correct for it if dissolution has occurred. Mg/Ca thermometry has advantages over other paleotemperature proxies including its use to investigate changes in the oxygen isotopic composition of seawater and the ability to reconstruct changes in the thermal structure of the water column by use of multiple species from different depth and or seasonal habitats. Presently available data are somewhat limited to low latitudes where they give fairly consistent values for the temperature difference between Late Holocene and the LGM (2-3.5 1C). Data from higher latitudes are more sparse, and suggest there may be complicating factors when comparing between multi-proxy reconstructions. r

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Paired δ18O signals of Neogloboquadrina pachyderma (s) and Turborotalita quinqueloba show thermal stratification structure in Nordic Seas

Cited by 238 publications

References 47 publications

A Late Glacial–Early Holocene multiproxy record from the eastern Fram Strait, Polar North Atlantic

A Late Glacial–Early Holocene multiproxy record from the eastern Fram Strait, Polar North Atlantic

Atlantic Water advection to the eastern Fram Strait — Multiproxy evidence for late Holocene variability

Planktonic foraminiferal Mg/Ca as a proxy for past oceanic temperatures: a methodological overview and data compilation for the Last Glacial Maximum

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