Glacial–interglacial ocean climate variability from planktonic foraminifera during the Mid-Pleistocene transition in the temperate Southwest Pacific, ODP Site 1123

Crundwell, Martin P.; Scott, G. H.; Naish, T.; Carter, Lionel

doi:10.1016/j.palaeo.2007.08.023

Cited by 127 publications

(182 citation statements)

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“…At Site 1123, the ANN-25 transfer function removes taxa which emerge and/or largely disappear through the Pleistocene (Truncorotalia truncatulinoides (S) and Tr. crassula; Crundwell et al, 2008), and Ruddiman et al (1989) could not distinguish whether the absence of the polar foraminifera N. pachyderma (s.) between 1.25 and 1.1 Ma at ODP607 was the result of climate or evolutionary factors. A recently published alkenone-derived SST record from the same site (Lawrence et al, 2011) depicts both the same absolute SSTs and timing of SST change as the foraminifera transfer function data; however, we use the ODP607…”

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confidence: 90%

“…Core-top calibrations are the preferred method of transfer function generation, as they incorporate temporal and spatial variability in production and diagenetic impacts upon initial sedimentation (Kucera et al, 2005). The three transfer function data sets used here are those used in the original publications (Table 1): the Imbrie-Kipp (1971) method based on Atlantic core-tops for Site 607 (Ruddiman et al, 1989), the FP-12E function from the western north Pacific (Thompson, 1981) for Site GIK17957-2 (Jian et al, 2000), and an artificial neural network (ANN) technique for Site 1143 (Crundwell et al, 2008). Of importance for all applications of transfer function proxies is the potential for nonanalogue situations to arise as a result of evolutionary events within the foraminiferal assemblage, particularly prior to 1 Ma (Kucera et al, 2005).…”

Section: Transfer Functions In Planktonic Foraminiferamentioning

confidence: 99%

“…The planktonic foraminifera transfer function records are presented as originally published (Crundwell et al, 2008;Jian et al, 2003;Ruddiman et al, 1989), in recognition of the regional calibrations used and the absence of non-analogue situations that might introduce increased uncertainties into the calibrations. Evolutionary effects on all three records appear to be minor.…”

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confidence: 99%

“…"GRAPE" refers to the gamma-ray attenuation porosity evaluator recorded in sediments, which reflects sediment density and can be used to record climate-related properties such as carbonate content. For foraminifera transfer functions the following approaches are noted: * FP-12E linear transfer function (Thompson, 1981), § Artificial neural network (Crundwell et al, 2008), ‡ (Imbrie and Kipp, 1971 A C C E P T E D M A N U S C R I P T…”

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confidence: 99%

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Pleistocene sea-surface temperature evolution: Early cooling, delayed glacial intensification, and implications for the mid-Pleistocene climate transition

McClymont

Sosdian

Rosell-Melé

et al. 2013

Earth-Science Reviews

180

172

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Citation for published item:w glymontD iFvF nd osdi nD FwF nd osellEwel¡ e D eF nd osenth lD F @PHIQA 9i rly leisto ene se Esurf e temper ture trends X e rly oolingD gl i l intensi( tionD nd impli tions for the midE leisto ene lim te tr nsitionF9D i rthEs ien e reviewsFD IPQ F ppF IUQEIWQF Further information on publisher's website:httpXGGdxFdoiForgGIHFIHITGjFe rs irevFPHIQFHRFHHT Publisher's copyright statement: NOTICE: this is the author's version of a work that was accepted for publication in Earth-science reviews. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be re ected in this document. Changes may have been made to this work since it was submitted for publication. A de nitive version was subsequently published in Earth-science reviews. 123, 2013, 10.1016/j.earscirev.2013.04.006 Additional information: Use policyThe full-text may be used and/or reproduced, and given to third parties in any format or medium, without prior permission or charge, for personal research or study, educational, or not-for-pro t purposes provided that:• a full bibliographic reference is made to the original source • a link is made to the metadata record in DRO • the full-text is not changed in any way The full-text must not be sold in any format or medium without the formal permission of the copyright holders.Please consult the full DRO policy for further details. This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting proof before it is published in its final form. Please note that during the production process errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain.A C C E P T E D M A N U S C R I P T A C C E P T E D M A N U S C R I P T ACCEPTED MANUSCRIPT2 AbstractThe mid-Pleistocene climate transition (MPT) is defined by the emergence of high amplitude, quasi-100 ka glacial-interglacial cycles from a prior regime of more subtle 41 ka cycles. This change in periodicity and amplitude cannot be explained by a change in 'external' astronomical forcing. Here, we review and integrate published records of sea-surface temperatures (SSTs) to assess whether a common global expression of the MPT in the surface ocean can be recognized, and examine our findings in light of mechanisms proposed to explain climate system reorganization across the MPT. Weshow that glacial-interglacial variability in SSTs is superimposed upon a longer-term cooling trend in oceanographic systems spanning the low-to high-latitudes. Regional Alongside the long-term SST cooling trends, quasi-100 ka cycles begin to emerge in both the SST and  18 O records at 1.2 Ma, and become dominant with the expansion of the ice-sheets at 0.9 Ma. We show that the intensified glacial-stage cooling is accompanied by...

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Section: Transfer Functions In Planktonic Foraminiferamentioning

confidence: 99%

mentioning

confidence: 99%

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confidence: 99%

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Pleistocene sea-surface temperature evolution: Early cooling, delayed glacial intensification, and implications for the mid-Pleistocene climate transition

McClymont

Sosdian

Rosell-Melé

et al. 2013

Earth-Science Reviews

180

172

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“…The second sediment source is of hemipelagic origin from the water column (Carter et al 2004b;Shipboard Scientific Party 2000) either carried or at least influenced by the DWBC. The DWBC itself shows cyclic variations at the obliquity and eccentricity cycles due to periodic reinforcement of the Antarctic Circumpolar Current (expressed at ODP Site 1123; Crundwell et al 2008;Hall et al 2001). The occurrence of the obliquity cycle (41 kyr duration) is unique to the sediments deposited under the influence of the DWBC in the Bounty Trough area for the last 800 kyrs.…”

Section: Introductionmentioning

confidence: 99%

The spatial extent of the Deep Western Boundary Current into the Bounty Trough: new evidence from parasound sub-bottom profiling

Horn

Uenzelmann-Neben

2016

Mar Geophys Res

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Deep currents such as the Pacific Deep Western Boundary Current (DWBC) are strengthened periodically in Milankovitch cycles. We studied periodic fluctuations in seismic reflection pattern and reflection amplitude in order to detect cycles in the sedimentary layers of Bounty Trough and bounty fan, east of New Zealand. There, the occurrence of the obliquity frequency is caused only by the DWBC. Therefore, it provides direct evidence for the spatial extent of the DWBC. We can confirm the extent of the DWBC west of the outer sill, previously only inferred via erosional features at the outer sill. Further, our data allow an estimation of the extent of the DWBC into the Bounty Trough, limiting the DWBC presence to east of 178.15°E. Using the presented method a larger dataset will allow a chronological and areal mapping of sedimentation processes and hence provide information on glacial/interglacial cycles.

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Changes in the position of the Subtropical Front south of New Zealand since the last glacial period

et al. 2015

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This study fills an important gap in our understanding of past changes in the Southern Subtropical Front (S-STF) in the southwest Pacific Ocean. Paleo-sea surface temperatures (SST) were estimated from planktic foraminiferal census counts from cores straddling the modern S-STF in the Solander Trough, south of New Zealand. The estimated SST were compared for 6 time slices; glacial period (25-21 ka), Last Glacial Maximum (LGM; 21-18 ka), early deglaciation (18-16 ka), late deglacial/early Holocene period (14-8 ka), mid-Holocene period (8-4 ka), and late Holocene period (4-0 ka). The position of the S-STF was determined by two methods:(1) the location of the 10°C isotherm and (2) the location of the highest SST gradients. These new results suggest that the S-STF was not continuous between east and west of New Zealand during the glacial period. Steep SST gradients indicate that a strong S-STF rapidly shifted south during the LGM and early deglaciation. During the late deglacial and Holocene periods the position of the S-STF differs between the two methods with reduced SST gradients, suggesting a more diffuse S-STF in the Solander Trough at this time. The glacial SST data suggest that the S-STF shifted north to the west of New Zealand, while to the east there was a stronger SST gradient across the front. This was possibly the result of an increased wind stress curl, which could have been caused by stronger, or more northerly Southern Hemisphere westerly winds (SHWW), or a merging of the SHWW split jet in this region.

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Glacial–interglacial ocean climate variability from planktonic foraminifera during the Mid-Pleistocene transition in the temperate Southwest Pacific, ODP Site 1123

Cited by 127 publications

References 96 publications

Pleistocene sea-surface temperature evolution: Early cooling, delayed glacial intensification, and implications for the mid-Pleistocene climate transition

Pleistocene sea-surface temperature evolution: Early cooling, delayed glacial intensification, and implications for the mid-Pleistocene climate transition

The spatial extent of the Deep Western Boundary Current into the Bounty Trough: new evidence from parasound sub-bottom profiling

Changes in the position of the Subtropical Front south of New Zealand since the last glacial period

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