Altitudinal shifts in the branched tetraether lipid distribution in soil from Mt. Kilimanjaro (Tanzania): Implications for the MBT/CBT continental palaeothermometer

Damsté, Jaap S. Sinninghe; Ossebaar, Jort; Schouten, Stefan; Verschuren, Dirk

doi:10.1016/j.orggeochem.2007.11.011

Cited by 101 publications

(50 citation statements)

References 12 publications

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“…In the Fiesch soil transect in the upper Rhône River basin (1188-2848 m altitude, -2.8 to 6.5 • C MAAT, and 1203-2085 mm MAP), we also did not observe a positive relationship between the CL MBT' and MAAT ( Figure 8D). Hence, it is not surprising that the Fiesch transect dataset also showed no altitudinal trend of the reconstructed MAAT (data not shown) in contrast to other similar studies (e.g., Sinninghe Damsté et al, 2008;Peterse et al, 2009b;Ernst et al, 2013;Coffinet et al, 2014). We do not understand why the Fiesch transect data are different to other altitudinal transect data for the moment.…”

Section: Discussion Abundance and Distribution Of Gdgts In Soilscontrasting

confidence: 62%

Tracing tetraether lipids from source to sink in the RhÃ´ne River system (NW Mediterranean)

et al. 2015

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In this study, we investigated soils and river suspended particulate matter (SPM) collected in the Rhône and its tributary basins as well as marine surface sediments taken in the Rhône prodelta (Gulf of Lions, NW Mediterranean). Thereby, we traced the signal of branched glycerol dialkyl glycerol tetraethers (brGDGTs) from the source to sink via the Rhône River and its tributaries and identified sources of brGDGTs in rivers and marine sediments. Soil pH rather than the mean annual air temperature (MAAT) explains most of the observed variances of the brGDGT distribution in our soil dataset. The observed changes in the distribution of brGDGTs in the river SPM indicate that brGDGTs brought by the river to the sea are primarily derived from the lower Rhône and its tributary soils, even though in situ production in the river itself cannot be excluded. In marine surface sediments, it appears that the input of riverine brGDGTs is the primary source of brGDGTs in the Rhône prodelta, although the brGDGT composition may be further modified by the in situ production in the marine environment. More work is required to assess fully whether brGDGTs can be used to reconstruct the terrestrial paleoenvironmental changes using marine sediment cores taken in the Rhône prodelta close to the river mouth.

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Section: Discussion Abundance and Distribution Of Gdgts In Soilscontrasting

confidence: 62%

Tracing tetraether lipids from source to sink in the RhÃ´ne River system (NW Mediterranean)

et al. 2015

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“…Mountainous slopes therefore provide ideal places for testing the brGDGT-derived indices as a MAAT proxy in a wide temperature range within a limited distance. Indeed, studies along several mountainous slopes from Asia, Africa and South America have shown the altitudinal temperature trend from the brGDGTderived indices in soil (Sinninghe Damsté et al, 2008;Peterse et al, 2009b;Ernst et al, 2013;Liu et al, 2013;Anderson et al, 2014;Coffinet et al, 2014;Yang et al, 2015). Among them, two studies, one at Mt.…”

Section: Introductionmentioning

confidence: 99%

“…On Mt. Kilimanjaro, Tanzania, both absolute temperature values and lapse rates determined from the MBT-CBT proxy were higher than measured ones by $3.1°C (À1.1°C to +6.1°C range) and 1.6°C/km (À6.9°C/km vs. À5.3°C/km), respectively (Sinninghe Damsté et al, 2008). We estimated MAAT 0 temperature values by substituting their reported data of MBT for MBT 0 in Eq.…”

Section: Introductionmentioning

confidence: 99%

Warm season bias of branched GDGT temperature estimates causes underestimation of altitudinal lapse rate

Deng

Jia

Jin

et al. 2016

Organic Geochemistry

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“…Another group of GDGTs containing branched (br) instead of isoprenoid alkyl chains (Appendix 1) was initially discovered in peat bogs (Sinninghé Damsté et al, 2000) and subsequently shown to be ubiquitous in soils, coastal marine and lake sediments (e.g. Schouten et al, 2000;Weijers et al, 2006a Weijers et al, , 2007aSinninghe Damsté et al, 2008;Huguet et al, 2010; Loomis et al, 2011). Acidobacteria thriving in soil are a likely source of brGDGTs (Weijers et al, 2006a(Weijers et al, , 2009 Sinninghé Damsté et al, 2011, 2014.…”

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confidence: 99%

“…seasonality, production depth and producers, can provide more accurate reconstruction for particular environments (e.g. Sinninghe Damsté et al, 2008;Tierney et al, 2010a;Zink et al, 2010;Kabel et al, 2012;Kim et al, 2015), bearing in mind that these local factors might not have been the same in the past, recent attempts have been undertaken to accommodate this issue by way of the so-called BAYSPAR calibration, which provides local calibrations by considering only data points from a specific spatial grid into account (Tierney and Tingley, 2014). However, data from the southeast Pacific and Chile are still scarce in the global calibrations of GDGT-based temperature proxies (e.g.…”

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confidence: 99%

Isoprenoid and branched GDGT-based proxies for surface sediments from marine, fjord and lake environments in Chile

Kaiser

Schouten

Kilian

et al. 2015

Organic Geochemistry

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Sinninhe Damsté, J.S. (2015). Isoprenoid and branched GDGTbased proxies for surface sediments from marine, fjord and lake environments in Chile, Organic Geochemistry,[89][90] 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. suggesting in situ production of certain br GDGTs in the water column or surface sediment.For the lakes, MBT'/CBT-based surface air temperature estimates were 3 to 6 °C below MAAT. However, temperature estimates from the lake-specific MBT/CBT global calibration were in good agreement with mean annual surface temperature for all the lakes. The results highlight the need for testing local vs. global calibrations of GDGT-based proxies before their application for palaeoenvironmental reconstruction. Key words:GDGT; TEX 86 ; BIT; MBT'; CBT; calibration; marine; fjord; lake; Chile 3 IntroductionGlycerol dialkyl glyceryl tetraethers (GDGTs) are membrane lipids of archaea and bacteria and occur ubiquitously in aquatic environments and soils (reviewed by Schouten et al., 2013).Thaumarchaeota (formerly Group 1 Crenarchaeota; Brochier-Armanet et al., 2008;Spang et al., 2010), a specific phylogenetic cluster of the Archaea domain occurring widely in marine and lake systems (e.g. Karner et al., 2001; Keough et al., 2003), biosynthesize isoprenoid (iso)GDGTs (structures in Appendix 1) containing 0-4 cyclopentane moieties and crenarchaeol, which has a cyclohexane moiety in addition to four cyclopentane moieties Sinninghe Damsté et al., 2002;Pitcher et al., 2011a). Another group of GDGTs containing branched (br) instead of isoprenoid alkyl chains (Appendix 1) was initially discovered in peat bogs (Sinninghé Damsté et al., 2000) and subsequently shown to be ubiquitous in soils, coastal marine and lake sediments (e.g. Schouten et al., 2000;Weijers et al., 2006a Weijers et al., , 2007aSinninghe Damsté et al., 2008;Huguet et al., 2010; Loomis et al., 2011). Acidobacteria thriving in soil are a likely source of brGDGTs (Weijers et al., 2006a(Weijers et al., , 2009 Sinninghé Damsté et al., 2011, 2014. Although brGDGTs occur mainly in soil and peat, they are probably also produced in situ in the water column and/or the sediments of marine and freshwater (lake and river) environments (e.g. Peterse et al., 2009;Sinninghe Damsté et al., 2009; Tierney and Russell, 2009; Tierney et al., 2010a; Pearson et al., 2011; Zhu et al., 2011; Loomis et al., 2011 Loomis et al., , 2012 Loomis et al., , 2014 Zell et al., 2013; Buckles et al., 2014; De Jonge et al., 2014a; Weijers et al., 2014). Although GDGT-based proxies are being used increasingly for palaeoclimate reconstruction (e.g. Tierney et al., 2...

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Altitudinal shifts in the branched tetraether lipid distribution in soil from Mt. Kilimanjaro (Tanzania): Implications for the MBT/CBT continental palaeothermometer

Cited by 101 publications

References 12 publications

Tracing tetraether lipids from source to sink in the RhÃ´ne River system (NW Mediterranean)

Tracing tetraether lipids from source to sink in the RhÃ´ne River system (NW Mediterranean)

Warm season bias of branched GDGT temperature estimates causes underestimation of altitudinal lapse rate

Isoprenoid and branched GDGT-based proxies for surface sediments from marine, fjord and lake environments in Chile

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