Download LiPD file without ensemble tables
Download LiPD file as JSON-LD (no ensemble data)
Download LiPD file with ensemble data
L <- lipdR::readLipd("https://lipdverse.org/data/1wFFfRVqD04EHIiT7jWP/1_1_1/Qalluuraq.Elvert.2016.lpd")Report an issue (include datasetId and version)
In compilations: (only most recent versions are shown)
HoloceneAbruptChange-0_11_0
archiveType: LakeSediment
lipdVersion: 1.3
author: list(list(name = "Elvert, Marcus"))
journal: The Holocene
pages: 1766-1777
title: Methane turnover and environmental change from Holocene lipid biomarker records in a thermokarst lake in Arctic Alaska
agency: Deutsche Forschungsgemeinschaft
grant: DFG-Research Center/Excellence Cluster MARUM ‘The Ocean in the Earth System’
country: Germany
agency: US Department of Energy
grant: DE-NT000565
country: USA
agency: National Science Foundation
grant: ARC-0909523
country: USA
agency: USGS Gas Hydrates Project and US Department of Energy Methane Hydrates R&D Program
grant: DE-FE0002911
country: USA
latitude: 70.379
longitude: -157.348
elevation: 19
siteName: Qalluuraq
TSid: WEB1709b0d8
variableName: depth
units: cm
TSid: WEB465fbbe5
variableName: age
units: yr BP
TSid: WEB02283642
variableName: C25_2n-alkanoicAcid
units: ug/g
description: Freshwater diatom-derived highly branched isoprenoid
TSid: WEBd26896d3
variableName: C21n-alkanoicAcid
units: ug/g
description: Concentration of C21 n-alkane produced by aquatic submerged plants including mosses
TSid: WEB550f179b
variableName: C23n-alkanoicAcid
units: ug/g
description: Concentration of C23 n-alkane produced by aquatic submerged plants including mosses
TSid: WEBce3e9d77
variableName: C25n-alkanoicAcid
units: ug/g
description: Concentration of C25 n-alkane produced by aquatic submerged plants including mosses and terrestrial vascular plants, including sedges
TSid: WEB3626ba1f
variableName: C27n-alkanoicAcid
units: ug/g
description: Concentration of C27 n-alkane produced dominantly by terrestrial plants including sedges
TSid: WEBa7dbd60b
variableName: C29n-alkanoicAcid
units: ug/g
description: Concentration of C29 n-alkane produced by terrestrial plants including sedges
TSid: WEB689bcc34
variableName: C31n-alkanoicAcid
units: ug/g
description: Concentration of C31 n-alkane produced by terrestrial plants including sedges
TSid: WEB473ee0cb
variableName: ACL
units: unitless
description: Average chain length of n-alkanes C21-C31
TSid: WEBcdcffa56
variableName: needsToBeChanged
units: ug/g
description: Concentration of triterpenoid produced by higher plants, including Ericaceae
TSid: WEBd2ea22fc
variableName: concentration
units: ug/g
description: Concentration of hopanoid produced by aerobic bacteria, including methanotrophs
TSid: WEBcd1be94f
variableName: concentration
units: ug/g
description: Concentration of triterpenoid produced by higher plants, including Ericaceae
TSid: WEB5b130da2
variableName: depth
units: cm
description: Sample depth
TSid: WEBe869c105
variableName: age
units: yr BP
TSid: WEB2fe32ae5
variableName: d13C
units: permil
description: d13C of diatom-derived highly branched isoprenoid
TSid: WEB880da661
variableName: d13C
units: permil
description: d13C of C21 n-alkane
TSid: WEB10e22b1c
variableName: d13C
units: permil
description: d13C of C23 n-alkane
TSid: WEB72f695b2
variableName: d13C
units: permil
description: d13C of C25 n-alkane
TSid: WEBb2c31ea2
variableName: d13C
units: permil
description: d13C of C27 n-alkane
TSid: WEB14256166
variableName: d13C
units: permil
description: d13C of C29 n-alkane
TSid: WEBce2f7d77
variableName: d13C
units: permil
description: d13C of C31 n-alkane
TSid: WEB1ae83538
variableName: d13C
units: permil
description: d13C of triterpenoid
TSid: WEBdd2b5038
variableName: d13C
units: permil
description: d13C of hopanoid
TSid: WEB0269d00f
variableName: d13C
units: permil
description: d13C of triterpenoid
TSid: WEBc1f412b1
variableName: depth
units: cm
description: Sample depth
TSid: WEB8c248eee
variableName: age
units: yr BP
TSid: WEBf8955865
variableName: d2H
units: permil
description: d2H of diatom-derived highly branched isoprenoid
TSid: WEB80eb0029
variableName: d2H
units: permil
description: C21 n-alkane d2H
TSid: WEB71c65a42
variableName: d2H
units: permil
description: C23 n-alkane d2H
TSid: WEBeceb94e4
variableName: d2H
units: permil
description: C25 n-alkane d2H
TSid: WEB9d34a904
variableName: d2H
units: permil
description: C27 n-alkane d2H
TSid: WEB154d536f
variableName: d2H
units: permil
description: C29 n-alkane d2H
TSid: WEBf3ca3b5d
variableName: d2H
units: permil
description: C31 n-alkane d2H
TSid: WEB6ba82c76
variableName: d2H
units: permil
description: d2H of triterpenoid
TSid: WEBfcb4f8b8
variableName: d2H
units: permil
description: d2H of hopanoid
TSid: WEBfc4c1f51
variableName: d2H
units: permil
description: d2H of triterpenoid
TSid: WEBec25ae21
variableName: age
units: yr BP
TSid: WEB832044aa
variableName: temperature
units: degC
description: Mean annual air temperature; derived from CBT/MBT calibration of Weijers et al., 2007
basis: Based on SIM peak areas of extracted ions, the cyclisation ratio (CBT) and the methylation index (MBT) of brGDGTs were calculated and trends in MAT were estimated according to Weijers et al. (2007) MAT= (MBT−0.122−0.187*CBT) 0.02 The analytical errors of the MBT index and the CBT ratio were determined at ±0.01 units, leading to a variance in MAT estimates of ±0.6°C.
direction: positive
scope: climate
seasonality: Annual
variable: temperature
variableDetail: air@surface
variableGroup: Temperature
variableGroupDirection: negative
variableGroupOriginal: T
variableOriginal: temperature
TSid: WEBaef35c36
variableName: temperature
units: degC
description: Mean summer air temperature based on fractional abundances of specific GDGTs according to Foster et al. (2016), Pearson et al., 2011
basis: MST estimates, by contrast, were calculated based on an expanded global recalibration of fractional abun- dances of specific brGDGTs, previously defined by Pearson et al. (2011), according to Foster et al. (2016) MST = 32.5 + (85.4 × GDGT-Ib ) − (43.1×GDGT-II)−(32.1×GDGT-III)
direction: positive
scope: climate
seasonality: Summer
variable: temperature
variableGroup: Temperature
variableGroupDirection: negative
variableGroupOriginal: T
TSid: WEBea03ab88
variableName: depth
units: cm
TSid: WEBc8fcaa6f
variableName: sampleID
units: unitless
TSid: WEBd932c222
variableName: Material type
units: unitless
description: Dated material
TSid: WEB85550859
variableName: age14C
units: yr 14C BP
description: Uncalibrated radiocarbon age
TSid: WEBde6f8746
variableName: age14C_uncertainty1s
units: yr 14C BP
TSid: WEBa8c010be
variableName: age
units: yr BP
TSid: WEB30efb451
variableName: uncertaintyLow
units: yr BP
description: 2sig
TSid: WEBb01f641a
variableName: uncertaintyHigh
units: yr BP
description: 2sig
TSid: WEB77907f3f
variableName: Samples averaged?
units: unitless
description: Y if samples were averaged together to make one age
TSid: WEB-13f42-4a29-4035-9dbe-ce7f6
variableName: rejected
units: unitless
TSid: rcnRqeutoXM0wLOuYy98
variableName: uncertainty1s
units: yr BP
description: difference of uncertainty range divided by 2
root
pub
pub1
funding
funding1
funding2
funding3
funding4
geo
PaleoData columns
depth (cm) [1-1]
age (yr BP) [1-1]
C25_2n-alkanoicAcid (ug/g) [1-1]
C21n-alkanoicAcid (ug/g) [1-1]
C23n-alkanoicAcid (ug/g) [1-1]
C25n-alkanoicAcid (ug/g) [1-1]
C27n-alkanoicAcid (ug/g) [1-1]
C29n-alkanoicAcid (ug/g) [1-1]
C31n-alkanoicAcid (ug/g) [1-1]
ACL (unitless) [1-1]
needsToBeChanged (ug/g) [1-1]
concentration (ug/g) [1-1]
concentration (ug/g) [1-1]
depth (cm) [1-2]
age (yr BP) [1-2]
d13C (permil) [1-2]
d13C (permil) [1-2]
d13C (permil) [1-2]
d13C (permil) [1-2]
d13C (permil) [1-2]
d13C (permil) [1-2]
d13C (permil) [1-2]
d13C (permil) [1-2]
d13C (permil) [1-2]
d13C (permil) [1-2]
depth (cm) [1-3]
age (yr BP) [1-3]
d2H (permil) [1-3]
d2H (permil) [1-3]
d2H (permil) [1-3]
d2H (permil) [1-3]
d2H (permil) [1-3]
d2H (permil) [1-3]
d2H (permil) [1-3]
d2H (permil) [1-3]
d2H (permil) [1-3]
d2H (permil) [1-3]
age (yr BP) [1-4]
temperature (degC) [1-4]
interpretation
1
temperature (degC) [1-4]
interpretation
1
ChronData columns
depth (cm)
sampleID (unitless)
Material type (unitless)
age14C (yr 14C BP)
age14C_uncertainty1s (yr 14C BP)
age (yr BP)
uncertaintyLow (yr BP)
uncertaintyHigh (yr BP)
Samples averaged? (unitless)
rejected (unitless)
uncertainty1s (yr BP)