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L <- lipdR::readLipd("https://lipdverse.org/data/SNfJB8GaMm4ZoWOZjKcR/1_0_6/LS03RUED.lpd")Report an issue (include datasetId and version)
In compilations: (only most recent versions are shown)
iso2k-1_1_2
archiveType: LakeSediment
originalDataUrl: this compilation
lipdVersion: 1.3
author: list(name = "Russell, J.M. , Johnson, T.C. , Talbot, M.R.")
journal: Geol
volume: 31
pages: 677
title: A 725 yr cycle in the climate of central Africa during the late Holocene
doi: 10.1130/G19449.1
latitude: -0.5
longitude: 29.5
elevation: 913
siteName: Edward
TSid: MAT1c8907d664
variableName: year
units: yr AD
description: Year AD
rank: NA
scope: climate
rank: NA
scope: climate
rank: NA
scope: climate
rank: NA
scope: climate
TSid: MAT4e0b49cf47
variableName: depth
units: cm
description: depth
rank: NA
scope: climate
rank: NA
scope: climate
rank: NA
scope: climate
rank: NA
scope: climate
TSid: LS03RUED
variableName: d18O
units: permil
description: carbonate
scope: climate
variable: circulationVariable
variableGroup: Monsoon strength
scope: climate
scope: climate
basis: The d18O, d13C, and Mg percentage in calcite are highly covariant (Fig. 2), a relationship that indicates that Mg and d18O are strongly controlled by the P/E ratio as opposed to other environmental variables (Talbot, 1990).
direction: negative
inferredMaterial: lake water
integrationTimeUnits: Years
rank: 1
scope: isotope
variable: effectivePrecipitation
variableGroup: EffectiveMoisture
variableGroupDirection: negative
variableGroupOriginal: P_E
coefficient: NA
fraction: NA
direction: negative
inferredMaterial: Lake wtaer
integrationTimeUnits: Years
rank: 2
scope: isotope
variable: temperature
variableGroup: Temperature
variableGroupDirection: negative
variableGroupOriginal: T_water
coefficient: NA
fraction: NA
scope: isotope
coefficient: NA
fraction: NA
rank: NA
TSid: chron1
variableName: depth
units: cm
description: mid-point depth
TSid: chron2
variableName: age14C
units: yr14C BP
description: 14C years before 1950
TSid: chron3
variableName: SD
units: yr14C BP
description: 14C years uncertainty
TSid: chron4
variableName: fractionModern
description: fraction of modern 14C activity
TSid: chron5
variableName: fractionModernUncertainty
description: fraction of modern 14C activity uncertainty
TSid: chron6
variableName: delta13C
units: permil
description: delta13C of material analyzed for 14C
TSid: chron7
variableName: delta13Cuncertainty
units: permil
description: delta13C uncertainty
TSid: chron8
variableName: thickness
units: cm
description: thickness of sample (along depth axis)
TSid: chron9
variableName: labID
description: laboratory ID from radiocarbon facility
TSid: chron10
variableName: materialDated
description: material analyzed
TSid: chron11
variableName: activity
units: Bq g-1
description: 210Pb, 239+240Pu or 137Cs activity
TSid: chron12
variableName: activityUncertainty
units: Bq g-1
description: 210Pb, 239+240Pu or 137Cs activity uncertainty
TSid: chron13
variableName: supportedActivity
description: Y if supported 210Pb activity, N if unsupported 210Pb activity
TSid: chron14
variableName: x210PbModel
description: model used to convert 210Pb activity to age (e.g., constant rate of supply)
TSid: chron15
variableName: age
units: yr BP
description: years before 1950 (calibrated age, or ages that dont need calibration)
TSid: chron16
variableName: SD
units: yr BP
description: uncertainty in age
TSid: chron17
variableName: reservoirAge14C
units: yr14C BP
description: 14C reservoir age
TSid: chron18
variableName: reservoirAge14CUncertainty
units: yr14C BP
description: 14C reservoir age uncertainty
TSid: chron19
variableName: useInAgeModel
description: was this date used in the age model?
TSid: chron20
variableName: coreInfo
description: which core/section was sampled?
root
pub
pub1
geo
PaleoData columns
year (yr AD)
interpretation
1
2
3
4
depth (cm)
interpretation
1
2
3
4
d18O (permil)
interpretation
1
2
3
4
5
6
ChronData columns
depth (cm)
age14C (yr14C BP)
SD (yr14C BP)
fractionModern ()
fractionModernUncertainty ()
delta13C (permil)
delta13Cuncertainty (permil)
thickness (cm)
labID ()
materialDated ()
activity (Bq g-1)
activityUncertainty (Bq g-1)
supportedActivity ()
x210PbModel ()
age (yr BP)
SD (yr BP)
reservoirAge14C (yr14C BP)
reservoirAge14CUncertainty (yr14C BP)
useInAgeModel ()
coreInfo ()