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L <- lipdR::readLipd("https://lipdverse.org/data/cmscKLba3BloUTHY9KGs/1_0_5/LS15JOPA.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: Jones, M. D. , Djamali, M. , Holmes, J. , Weeks, L. , Leng, M. J. , Lashkari, A. , Alamdari, K. , Noorollahi, D. , Thomas, L. , Metcalfe, S. E.
journal: The Holocene
volume: 25
pages: -10
title: Human impact on the hydroenvironment of Lake Parishan, SW Iran, through the late-Holocene
doi: 10.1177/0959683615594242
latitude: 29.514
longitude: 51.8
elevation: 820
siteName: Lake Parishan
TSid: MAT73146a795b
variableName: year
units: yr AD
description: Year AD
rank: NA
scope: climate
rank: NA
scope: climate
rank: NA
scope: climate
TSid: MAT5f789c43fc
variableName: depth
units: cm
description: depth
rank: NA
scope: climate
rank: NA
scope: climate
rank: NA
scope: climate
TSid: LS15JOPA01
variableName: d18O
units: permil
description: carbonate
scope: climate
scope: climate
scope: climate
basis: Modern lake isotoep hydrology and mineralogy change downcore
direction: negative
inferredMaterial: lake water
integrationTimeUncertaintyType: chronological; mineralogy
integrationTimeUnits: years
rank: 1
scope: isotope
variable: effectivePrecipitation
variableGroup: EffectiveMoisture
variableGroupDirection: negative
variableGroupOriginal: P_E
basis: The carbonate isotope values also show an up core trend to more positive values with a particularly marked step in d13C values at 125 cm from ~-3 per mil to ~+2 per mil, in part explained by the shift in mineralogy; aragonite is 1.9 per mil (0.6 per mil) more positive in d13C (d18O) compared with calcite precipitated in waters with the same temperature and isotopic composition (Grossman, 1984; Grossman and Ku, 1986). Oxygen and hydrogen isotope ratios of the lake waters collected in 2007 show a clear evaporative signal (Supplementary Figure 1, available online), and d18O trends to more positive values likely represents a shift to more evaporative dominant conditions given the associated change from calcite to aragonite (e.g. Jones et al., 2006).
inferredMaterial: Lake water
integrationTimeUncertaintyType: chronological; mineralogy
integrationTimeUnits: years
mathematicalRelation: non-linear
rank: 2
scope: isotope
variable: deleteMe
variableGroup: Mineralogy
direction: negative
inferredMaterial: Lake water
integrationTimeUncertaintyType: chronological; mineralogy
integrationTimeUnits: years
rank: 3
scope: isotope
variable: temperature
variableGroup: Temperature
variableGroupDirection: negative
variableGroupOriginal: T_water
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?
root
pub
pub1
geo
PaleoData columns
year (yr AD)
interpretation
1
2
3
depth (cm)
interpretation
1
2
3
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 ()