L <- lipdR::readLipd("https://lipdverse.org/data/3sneXJXGkJAe6jcXbR0e/1_0_18/MacalChasm.Akers.2016.lpd")Report an issue (include datasetId and version)
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SISAL-LiPD-2_1_1
archiveType: Speleothem
originalDataUrl: https://doi.org/10.17864/1947.256
lipdVersion: 1.3
author: list(list(name = "Pete D. Akers and George A. Brook and L. Bruce Railsback and Fuyuan Liang and Gyles Iannone and James W. Webster and Philip P. Reeder and Hai Cheng and R. Lawrence Edwards"))
journal: Palaeogeography, Palaeoclimatology, Palaeoecology
pages: 268--288
title: An extended and higher-resolution record of climate and land use from stalagmite {MC}01 from Macal Chasm, Belize, revealing connections between major dry events, overall climate variability, and Maya sociopolitical changes
doi: 10.1016/j.palaeo.2016.07.007
doi: 10.1016/j.palaeo.2007.02.022
latitude: 16.883
longitude: -89.108
elevation: 530
siteName: Macal Chasm
TSid: S2LRaekMKaZQxo
variableName: depth
units: mm
description: Distance in mm from a reference point
TSid: S2LRyW6OF9xwWN
variableName: age
units: yr BP
description: Original published calibrated age of the sample in years BP
TSid: S2LRbDf26igq0I
variableName: age
units: yr BP
description: Calendar age in years BP, method = linInterp
TSid: S2LR98NJRr1Jy5
variableName: age
units: yr BP
description: Calendar age in years BP, method = Bchron
TSid: S2LR8jtbWV1Y2A
variableName: age
units: yr BP
description: Calendar age in years BP, method = copRa
TSid: S2LRAZhf4859ko
variableName: sampleID
units: unitless
description: Refers to the unique identifier for the sample (as given in sample table)
scope: climate
scope: climate
scope: climate
scope: isotope
scope: isotope
scope: isotope
TSid: S2LRmoKawXbvpm
variableName: thickness
units: mm
description: Thickness of the sample analysed (mm)
scope: climate
scope: climate
scope: climate
scope: isotope
scope: isotope
scope: isotope
TSid: S2LRpLFGK9HqWh
variableName: mineralogy
units: unitless
description: Description of the mineralogy of the sample
scope: climate
scope: climate
scope: climate
scope: isotope
scope: isotope
scope: isotope
TSid: S2LRx5OBxKN1aB
variableName: correction
units: unitless
description: Indication of whether the isotope measurements have been corrected in aragonite samples
scope: climate
scope: climate
scope: climate
scope: isotope
scope: isotope
scope: isotope
TSid: S2LR9DSUVgi2FG
variableName: d18O
units: permil
description: Original d18O measurement
direction: negative
variable: precipitation
variableDetail: amount@surface
seasonalityGeneral: Annual
scope: climate
seasonality: Annual
variableGroup: P
scope: climate
scope: climate
scope: isotope
scope: isotope
scope: isotope
TSid: S2LRLp2doS8RlW
variableName: uncertainty
units: permil
description: Laboratory precision on the d18O measurement
scope: climate
scope: climate
scope: climate
scope: isotope
scope: isotope
scope: isotope
TSid: S2LR1EJaw1fqZ9
variableName: uncertainty
units: unitless
description: Description of isotopic standard used
scope: climate
scope: climate
scope: climate
scope: isotope
scope: isotope
scope: isotope
TSid: S2LRE5ZXEOA0gV
variableName: d13C
units: permil
description: Original d13C measurement
direction: negative
variable: effectivePrecipitation
variableDetail: @surface
seasonalityGeneral: Annual
scope: climate
seasonality: Annual
variableGroup: P-E
scope: climate
scope: climate
scope: isotope
scope: isotope
scope: isotope
TSid: S2LRYvhu4IB1a0
variableName: uncertainty
units: permil
description: Laboratory precision on the d13C measurement
scope: climate
scope: climate
scope: climate
scope: isotope
scope: isotope
scope: isotope
TSid: S2LRaZEDsWzhgR
variableName: uncertainty
units: unitless
description: Description of isotopic standard used
scope: climate
scope: climate
scope: climate
scope: isotope
scope: isotope
scope: isotope
TSid: S2LRrupH1S23Sm
variableName: uncertaintyHigh
units: yr BP
description: Positive age uncertaintyin years BP, method = linInterp
scope: climate
scope: climate
scope: climate
scope: isotope
scope: isotope
scope: isotope
TSid: S2LRNXIANjxG6j
variableName: uncertaintyLow
units: yr BP
description: Negative age uncertaintyin years BP, method = linInterp
scope: climate
scope: climate
scope: climate
scope: isotope
scope: isotope
scope: isotope
TSid: S2LRo5y4V8WLt3
variableName: uncertaintyHigh
units: yr BP
description: Positive age uncertaintyin years BP, method = Bchron
scope: climate
scope: climate
scope: climate
scope: isotope
scope: isotope
scope: isotope
TSid: S2LReVbTDNXVO3
variableName: uncertaintyLow
units: yr BP
description: Negative age uncertaintyin years BP, method = Bchron
scope: climate
scope: climate
scope: climate
scope: isotope
scope: isotope
scope: isotope
TSid: S2LRmz3bfJ9Ryv
variableName: uncertaintyHigh
units: yr BP
description: Positive age uncertaintyin years BP, method = copRa
scope: climate
scope: climate
scope: climate
scope: isotope
scope: isotope
scope: isotope
TSid: S2LRgK1TKE7twV
variableName: uncertaintyLow
units: yr BP
description: Negative age uncertaintyin years BP, method = copRa
scope: climate
scope: climate
scope: climate
scope: isotope
scope: isotope
scope: isotope
TSid: S2LcRe2Fn8L7w69
variableName: depth
units: depth_sample
description: Distance in mm from a reference point
TSid: S2LcR2zCyFG5IpS
variableName: sisalDatingId
units: unitless
description: Unique identifier for each date
TSid: S2LcR3viMMy4hnX
variableName: labID
units: unitless
description: The laboratory number of the dated sample
TSid: S2LcRUIl5LvSodQ
variableName: materialDated
units: unitless
description: Mineralogy of the dated sample
TSid: S2LcRMAIQTzDm7r
variableName: ageUncorr
units: yr BP
description: Uncorrected age of the dated sample in years
TSid: S2LcR0spNK2AP6b
variableName: ageUncorrUncertaintyHi
units: yr BP
description: Positive uncertainty of the uncorrected age of the dated sample in years
TSid: S2LcRxLZrVUbiG1
variableName: ageUncorrUncertaintyLow
units: yr BP
description: Negative uncertainty of the uncorrected age of the dated sample in years
TSid: S2LcRJd7dDkf8vf
variableName: retained
units: unitless
description: Indication of whether the date is used in the original age model (opposite of rejected)
TSid: S2LcRDhTJ4bcBzg
variableName: U238
units: ppb
description: 238U content of the dated sample in ppb
TSid: S2LcRxAXN9D9DEW
variableName: U238Uncertainty
units: ppb
description: 238U 2-sigma uncertainty of dated sample in ppb
TSid: S2LcRtw5PwEuoiA
variableName: Th232
units: ppt
description: 232Th content of the dated sample in ppt
TSid: S2LcRbBiUvQ2U0a
variableName: Th232Uncertainty
units: ppt
description: 232Th 2-sigma uncertainty of the dated sample in ppt
TSid: S2LcR7NRovarG3F
variableName: Th230/Th232
units: unitless
description: 230Th/232Th activity ratio of the dated sample
TSid: S2LcR1dYU2Dfj7f
variableName: Th230/Th232Uncertainty
units: unitless
description: 230Th/232Th activity ratio 2-sigma uncertainty of the dated sample
TSid: S2LcRIxmeKjlnGT
variableName: Th230/U238
units: unitless
description: 230Th/238U activity ratio of the dated sample
TSid: S2LcRiskq3LeFyR
variableName: Th230/U238Uncertainty
units: unitless
description: 230Th/238U activity ratio 2-sigma uncertainty of the dated sample
TSid: S2LcR1Xk5fq5dQt
variableName: U234/U238
units: unitless
description: 234U/238U activity ratio of the dated sample
TSid: S2LcRoTriD66nSk
variableName: U234/U238Uncertainty
units: unitless
description: 234U/238U activity ratio 2-sigma uncertainty of the dated sample
TSid: S2LcRrjoeOhi5Ne
variableName: Th230/Th232Initial
units: unitless
description: Initial 230Th/232Th activity ratio for the detrital correction
TSid: S2LcR40TQc429ES
variableName: Th230/Th232InitialUncertainty
units: unitless
description: Initial 230Th/232Th activity ratio uncertainty for the detrital correction
TSid: S2LcRqQLMEEB9r4
variableName: decayConstant
units: unitless
description: Description of the half-life used for 230Th and 234U for U/Th samples
TSid: S2LcRcROsa5jLuC
variableName: age
units: yr BP
description: Corrected age of the dated sample in years
TSid: S2LcR6usfKNQjWg
variableName: ageUncertaintyHigh
units: yr BP
description: Positive uncertainty of corrected age of the dated sample in years
TSid: S2LcRFwhlvRUcA6
variableName: ageUncertaintyLow
units: yr BP
description: Negative uncertainty of corrected age of the dated sample in years
TSid: S2LcR8h1p8UpYRM
variableName: age_type
units: unitless
description: broad class of age control
root
pub
pub1
pub2
geo
PaleoData columns
depth (mm)
age (yr BP)
age (yr BP)
age (yr BP)
age (yr BP)
sampleID (unitless)
interpretation
1
2
3
4
5
6
thickness (mm)
interpretation
1
2
3
4
5
6
mineralogy (unitless)
interpretation
1
2
3
4
5
6
correction (unitless)
interpretation
1
2
3
4
5
6
d18O (permil)
interpretation
1
2
3
4
5
6
uncertainty (permil)
interpretation
1
2
3
4
5
6
uncertainty (unitless)
interpretation
1
2
3
4
5
6
d13C (permil)
interpretation
1
2
3
4
5
6
uncertainty (permil)
interpretation
1
2
3
4
5
6
uncertainty (unitless)
interpretation
1
2
3
4
5
6
uncertaintyHigh (yr BP)
interpretation
1
2
3
4
5
6
uncertaintyLow (yr BP)
interpretation
1
2
3
4
5
6
uncertaintyHigh (yr BP)
interpretation
1
2
3
4
5
6
uncertaintyLow (yr BP)
interpretation
1
2
3
4
5
6
uncertaintyHigh (yr BP)
interpretation
1
2
3
4
5
6
uncertaintyLow (yr BP)
interpretation
1
2
3
4
5
6
ChronData columns
depth (depth_sample)
sisalDatingId (unitless)
labID (unitless)
materialDated (unitless)
ageUncorr (yr BP)
ageUncorrUncertaintyHi (yr BP)
ageUncorrUncertaintyLow (yr BP)
retained (unitless)
U238 (ppb)
U238Uncertainty (ppb)
Th232 (ppt)
Th232Uncertainty (ppt)
Th230/Th232 (unitless)
Th230/Th232Uncertainty (unitless)
Th230/U238 (unitless)
Th230/U238Uncertainty (unitless)
U234/U238 (unitless)
U234/U238Uncertainty (unitless)
Th230/Th232Initial (unitless)
Th230/Th232InitialUncertainty (unitless)
decayConstant (unitless)
age (yr BP)
ageUncertaintyHigh (yr BP)
ageUncertaintyLow (yr BP)
age_type (unitless)