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L <- lipdR::readLipd("https://lipdverse.org/data/BzeIEqw0JiqjSdbmhCzO/1_0_5/LS99LASI.lpd")Report an issue (include datasetId and version)
In compilations: (only most recent versions are shown)
iso2k-1_1_1
archiveType: LakeSediment
originalDataUrl: this compilation
lipdVersion: 1.3
author: Lamb, Henry , Roberts, Neil , Leng, Melanie , Barker, Philip , Benkaddour, Abdelfattah , van der Kaars, Sander
journal: Journal of Paleolimnology
volume: 21
pages: -18
doi: 10.1023/A:1008099602205
latitude: 33.05
longitude: 5
elevation: 2080
siteName: Lake Sidi Ali
TSid: MAT9a198008cb
variableName: year
units: yr AD
description: Year AD
rank: NA
scope: climate
rank: NA
scope: climate
TSid: MAT36a5d199c9
variableName: depth
units: cm
description: depth
rank: NA
scope: climate
rank: NA
scope: climate
TSid: LS99LASI
variableName: d18O
units: permil
description: carbonate
scope: climate
scope: climate
scope: climate
basis: interpreting the data as a record of changing seasonality and/or isotopic composition (and therefore source) of precipitation, are therefore preferred
direction: positive
inferredMaterial: lake water
rank: 1
scope: isotope
variable: precipitationIsotope
variableGroup: P_isotope
variableGroupDirection: positive
basis: higher d18O values should correlate with lower water levels, as inferred from the diatoms, indicating periods of reduced precipitation. In fact, the opposite appears to be the case - these two indicators tend to have a slight positive correlation rather than a negative one.
inferredMaterial: Lake water
rank: 2
scope: isotope
variable: effectivePrecipitation
variableGroup: EffectiveMoisture
variableGroupDirection: negative
variableGroupOriginal: P_E
scope: isotope
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: RzhXejyQLOZk0QP1h
variableName: reject
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
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 ()
reject ()