Sources and distributions of branched and isoprenoid tetraether lipids on the Amazon shelf and fan: Implications for the use of GDGT-based proxies in marine sediments

Zell, Claudia; Kim, Jung-Hyun; Hollander, David J.; Lorenzoni, Laura; Baker, Paul A.; Silva, Cleverson Guizan; Nittrouer, Charles A.; Damsté, Jaap S. Sinninghe

doi:10.1016/j.gca.2014.04.038

Cited by 96 publications

(64 citation statements)

References 75 publications

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“…The samples were previously studied for Glycerol Dialkyl Glycerol Tetraether (GDGT) lipids and bulk parameters by Kim et al (2006Kim et al ( , 2007Kim et al ( , 2010Kim et al ( , 2014Kim et al ( , 2015 …”

Section: Gulf Of Lionmentioning

confidence: 99%

“…The mean annual SST for the Atlantic Ocean offshore the Amazon River mouth is 28°C (Zell et al, 2014).The major current on the Amazon shelf is the North Brazilian Current, transporting riverine suspended matter to the northwest, along the North Brazilian coast.…”

Section: Amazon Shelfmentioning

confidence: 99%

“…1) were collected as described by Zell et al (2014). These samples have been previously studied for GDGTs by Kim et al (2012), Zell et al (2013aZell et al ( , 2013bZell et al ( , 2014 and for long chain glycolipids by Bale et al (2015).…”

Section: Amazon Shelfmentioning

confidence: 99%

“…The sediments from the Berau delta were extracted and fractionated in a similar way (see . The surface sediments and SPM of the Yenisei basin and Amazon basin have been extracted previously as described in De Jonge et al (2014) and Zell et al (2014), respectively. Briefly, the freeze-dried filters and sediments were extracted using a modified Bligh and Dyer method and separated into core GDGT lipids and intact polar lipids over a silica column.…”

Section: Diol Analysismentioning

confidence: 99%

“…The δ 13 C OM is a proxy for bulk terrigenous versus marine OM (Meyers, 1994) and the BIT index is a proxy for input from continental (riverine and soil) OM into the marine realm (Hopmans et al, 2004;Walsh et al, 2008;Zell et al, 2014 andDe Jonge et al, 14 2015). For this comparison we excluded the 1,14-diols from the data set as the 1,14 diols are known to be produced by another group of organisms (Proboscia diatoms; Sinninghe Damsté et al, 2003;Rampen et al, 2007) × 100…”

Section: Distribution Of Diols In Coastal Sediments and River Spmmentioning

confidence: 99%

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The C 32 alkane-1,15-diol as a tracer for riverine input in coastal seas

Lattaud

Kim

Jonge

et al. 2017

Geochimica et Cosmochimica Acta

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(2017). The C32 alkane-1,15-diol as a tracer for riverine input in coastal seas. Geochimica et Cosmochimica Acta, 202,[146][147][148][149][150][151][152][153][154][155][156][157][158] The NIOZ Repository gives free access to the digital collection of the work of the Royal Netherlands Institute for Sea Research. This archive is managed according to the principles of the Open Access Movement, and the Open Archive Initiative. Each publication should be cited to its original source -please use the reference as presented. When using parts of, or whole publications in your own work, permission from the author(s) or copyright holder(s) is always needed. 1The C 32 alkane-1,15-diol as a tracer for riverine input in coastal seas ABSTRACTLong chain alkyl diols are lipids that occur ubiquitously in marine sediments and are used as a proxy for sea surface temperature (SST), using the Long chain Diol Index (LDI), and for upwelling intensity/high nutrient conditions. The distribution of 1,13-and 1,15-diols has been documented in open marine and lacustrine sediments and suspended particulate matter, but rarely in coastal seas receiving a significant riverine, and thus continental organic matter, input. Here we studied the distribution of diols in four shelf seas with major river outflows: the Gulf of Lion, the Kara Sea, the Amazon shelf and the Berau delta, covering a wide range of climate conditions. The relative abundance of the C 32 1,15-diol is consistently higher close to the river mouth and particularly in the suspended particulate matter of the rivers suggesting a terrigenous source. This is supported by statistical analysis which points out a significant positive correlation between the C 32 1,15-diol and the Branched and Isoprenoid Tetraether index, a proxy reflecting soil and riverine input in marine environments. However, the C 32 1,15-diol was not detected in soils and is unlikely to be derived from vegetation, suggesting that the C 32 1,15-diol is mainly produced in rivers. This agrees with the observation that it is a dominant diol in most cultivated freshwater eustigmatophyte algae. We, therefore, suggest that the relative abundance of the C 32 1,15-diol can potentially be used as a proxy for riverine organic matter input in shelf seas. Our results also show that long chain alkyl diols delivered by rivers can substantially affect LDI-reconstructed SSTs in coastal regions close to river mouths.

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Section: Gulf Of Lionmentioning

confidence: 99%

Section: Amazon Shelfmentioning

confidence: 99%

Section: Amazon Shelfmentioning

confidence: 99%

Section: Diol Analysismentioning

confidence: 99%

Section: Distribution Of Diols In Coastal Sediments and River Spmmentioning

confidence: 99%

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The C 32 alkane-1,15-diol as a tracer for riverine input in coastal seas

Lattaud

Kim

Jonge

et al. 2017

Geochimica et Cosmochimica Acta

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Distribution of branched GDGTs in surface sediments from the Colville River, Alaska: Implications for the MBT′/CBT paleothermometer in Arctic marine sediments

Hanna

Shanahan

2016

JGR Biogeosciences

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Significant climate fluctuations in the Arctic over the recent past, and additional predicted future temperature changes, highlight the need for high‐resolution Arctic paleoclimate records. Arctic coastal environments supplied with terrigenous sediment from Arctic rivers have the potential to provide annual to subdecadal resolution records of climate variability over the last few millennia. A potential tool for paleotemperature reconstructions in these marine sediments is the revised methylation index of branched tetraethers (MBT′)/cyclization ratio of branched tetraethers (CBT) proxy based on branched glycerol dialkyl glycerol tetraethers (brGDGTs). In this study, we examine the source of brGDGTs in the Colville River, Alaska, and the adjacent Simpson Lagoon and reconstruct temperatures from Simpson Lagoon sediments to evaluate the applicability of this proxy in Arctic estuarine environments. The Colville catchment soils, fluvial sediments, and estuarine sediments contain statistically similar brGDGT distributions, indicating that the brGDGTs throughout the system are soil derived with little alteration from in situ brGDGT production in the river or coastal waters. Temperatures reconstructed from the MBT′/CBT indices for surface samples show good agreement with regional summer (June through September) temperatures, suggesting a seasonal bias in Arctic temperature reconstructions from the Colville system. In addition, we reconstruct paleotemperatures from an estuarine sediment core that spans the last 75 years, revealing an overall warming trend in the twentieth century that is consistent with trends observed in regional instrumental records. These results support the application of this brGDGT‐based paleotemperature proxy for subdecadal‐scale summer temperature reconstructions in Arctic estuaries containing organic material derived from sediment‐laden, episodic rivers.

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The application of GDGTs proxies to the Bohai sea

Zhang

Wei

et al. 2020

J Radioanal Nucl Chem

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Sources and distributions of branched and isoprenoid tetraether lipids on the Amazon shelf and fan: Implications for the use of GDGT-based proxies in marine sediments

Cited by 96 publications

References 75 publications

The C 32 alkane-1,15-diol as a tracer for riverine input in coastal seas

The C 32 alkane-1,15-diol as a tracer for riverine input in coastal seas

Distribution of branched GDGTs in surface sediments from the Colville River, Alaska: Implications for the MBT′/CBT paleothermometer in Arctic marine sediments

The application of GDGTs proxies to the Bohai sea

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