L <- lipdR::readLipd("https://lipdverse.org/data/r4T2kpdTpTP0WWVrEReP/1_0_6/LS11BACH.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 = "Barker, P. A. , Hurrell, E. R. , Leng, M. J. , Wolff, C. , Cocquyt, C. , Sloane, H. J. , Verschuren, D.")
journal: Geology
volume: 39
title: Seasonality in equatorial climate over the past 25 k.y. revealed by oxygen isotope records from Mount Kilimanjaro
doi: 10.1130/G32419.1
latitude: 3.32
longitude: 37.7
elevation: 880
siteName: Challa
TSid: MAT89320ea750
variableName: year
units: yr AD
description: Year AD
rank: NA
scope: climate
rank: NA
scope: climate
TSid: MAT773b31ece1
variableName: depth
units: cm
description: depth
rank: NA
scope: climate
rank: NA
scope: climate
TSid: LS11BACH
variableName: d18O
units: permil
description: silica
scope: climate
scope: climate
scope: climate
basis: Therefore, the Challa ?18Odiatom record is tuned to the underlying processes of local precipitation and, especially, seasonal evaporative losses from the lake surface, only modifi ed by small temperature effects.
coefficient: NA
direction: negative
fraction: NA
inferredMaterial: lake water
integrationTimeUnits: Years
rank: 1
scope: isotope
variable: effectivePrecipitation
variableGroup: EffectiveMoisture
variableGroupDirection: negative
variableGroupOriginal: P_E
basis: An adjustment of ?0.2?/i¿½C increases d18Odiatom by 1? from 25 ka to 16 ka and by 0.5? during the late-glacial period and Younger Dryas, values still less than that during the late Holocene (Fig. 3).
coefficient: NA
direction: negative
fraction: NA
rank: 2
scope: isotope
variable: temperature
variableGroup: Temperature
variableGroupDirection: negative
variableGroupOriginal: T_air
coefficient: NA
fraction: NA
rank: NA
scope: isotope
TSid: chron2
variableName: age14C
units: yr14C BP
description: 14C years before 1950
TSid: chron3
variableName: age14Cuncertainty
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: chron16
variableName: ageUncertainty
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?
root
pub
pub1
geo
PaleoData columns
year (yr AD)
interpretation
1
2
depth (cm)
interpretation
1
2
d18O (permil)
interpretation
1
2
3
4
5
6
ChronData columns
age14C (yr14C BP)
age14Cuncertainty (yr14C BP)
fractionModern ()
fractionModernUncertainty ()
delta13C (permil)
delta13Cuncertainty (permil)
thickness (cm)
labID ()
materialDated ()
activity (Bq g-1)
activityUncertainty (Bq g-1)
supportedActivity ()
x210PbModel ()
ageUncertainty (yr BP)
reservoirAge14C (yr14C BP)
reservoirAge14CUncertainty (yr14C BP)
useInAgeModel ()