MacalChasm.Akers.2016 - v1.0.15

Dataset Id: 3sneXJXGkJAe6jcXbR0e

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R code to load dataset:

L <- lipdR::readLipd("https://lipdverse.org/data/3sneXJXGkJAe6jcXbR0e/1_0_15/MacalChasm.Akers.2016.lpd")

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Download PaleoData only (csv)

Download ChronData only (csv)

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In compilations: (only most recent versions are shown)

SISAL-LiPD-2_0_1

SISAL-LiPD-2_0_0

root

archiveType: Speleothem

originalDataUrl: https://doi.org/10.17864/1947.256

lipdVersion: 1.3

pub
pub1

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

pub2

doi: 10.1016/j.palaeo.2007.02.022

geo

latitude: 16.883

longitude: -89.108

elevation: 530

siteName: Macal Chasm

PaleoData columns
depth (mm)

TSid: S2LRaekMKaZQxo

variableName: depth

units: mm

description: Distance in mm from a reference point

age (yr BP)

TSid: S2LRyW6OF9xwWN

variableName: age

units: yr BP

description: Original published calibrated age of the sample in years BP

age (yr BP)

TSid: S2LRbDf26igq0I

variableName: age

units: yr BP

description: Calendar age in years BP, method = linInterp

age (yr BP)

TSid: S2LR98NJRr1Jy5

variableName: age

units: yr BP

description: Calendar age in years BP, method = Bchron

age (yr BP)

TSid: S2LR8jtbWV1Y2A

variableName: age

units: yr BP

description: Calendar age in years BP, method = copRa

sampleID (unitless)

TSid: S2LRAZhf4859ko

variableName: sampleID

units: unitless

description: Refers to the unique identifier for the sample (as given in sample table)

interpretation
1

scope: climate

thickness (mm)

TSid: S2LRmoKawXbvpm

variableName: thickness

units: mm

description: Thickness of the sample analysed (mm)

interpretation
1

scope: climate

mineralogy (unitless)

TSid: S2LRpLFGK9HqWh

variableName: mineralogy

units: unitless

description: Description of the mineralogy of the sample

interpretation
1

scope: climate

correction (unitless)

TSid: S2LRx5OBxKN1aB

variableName: correction

units: unitless

description: Indication of whether the isotope measurements have been corrected in aragonite samples

interpretation
1

scope: climate

d18O (permil)

TSid: S2LR9DSUVgi2FG

variableName: d18O

units: permil

description: Original d18O measurement

interpretation
1

direction: negative

variable: precipitation

variableDetail: amount@surface

seasonalityGeneral: Annual

scope: climate

seasonality: Annual

variableGroup: P

uncertainty (permil)

TSid: S2LRLp2doS8RlW

variableName: uncertainty

units: permil

description: Laboratory precision on the d18O measurement

interpretation
1

scope: climate

uncertainty (unitless)

TSid: S2LR1EJaw1fqZ9

variableName: uncertainty

units: unitless

description: Description of isotopic standard used

interpretation
1

scope: climate

d13C (permil)

TSid: S2LRE5ZXEOA0gV

variableName: d13C

units: permil

description: Original d13C measurement

interpretation
1

direction: negative

variable: effectivePrecipitation

variableDetail: @surface

seasonalityGeneral: Annual

scope: climate

seasonality: Annual

variableGroup: P-E

uncertainty (permil)

TSid: S2LRYvhu4IB1a0

variableName: uncertainty

units: permil

description: Laboratory precision on the d13C measurement

interpretation
1

scope: climate

uncertainty (unitless)

TSid: S2LRaZEDsWzhgR

variableName: uncertainty

units: unitless

description: Description of isotopic standard used

interpretation
1

scope: climate

uncertaintyHigh (yr BP)

TSid: S2LRrupH1S23Sm

variableName: uncertaintyHigh

units: yr BP

description: Positive age uncertaintyin years BP, method = linInterp

interpretation
1

scope: climate

uncertaintyLow (yr BP)

TSid: S2LRNXIANjxG6j

variableName: uncertaintyLow

units: yr BP

description: Negative age uncertaintyin years BP, method = linInterp

interpretation
1

scope: climate

uncertaintyHigh (yr BP)

TSid: S2LRo5y4V8WLt3

variableName: uncertaintyHigh

units: yr BP

description: Positive age uncertaintyin years BP, method = Bchron

interpretation
1

scope: climate

uncertaintyLow (yr BP)

TSid: S2LReVbTDNXVO3

variableName: uncertaintyLow

units: yr BP

description: Negative age uncertaintyin years BP, method = Bchron

interpretation
1

scope: climate

uncertaintyHigh (yr BP)

TSid: S2LRmz3bfJ9Ryv

variableName: uncertaintyHigh

units: yr BP

description: Positive age uncertaintyin years BP, method = copRa

interpretation
1

scope: climate

uncertaintyLow (yr BP)

TSid: S2LRgK1TKE7twV

variableName: uncertaintyLow

units: yr BP

description: Negative age uncertaintyin years BP, method = copRa

interpretation
1

scope: climate

ChronData columns
depth (depth_sample)

TSid: S2LcRe2Fn8L7w69

variableName: depth

units: depth_sample

description: Distance in mm from a reference point

sisalDatingId (unitless)

TSid: S2LcR2zCyFG5IpS

variableName: sisalDatingId

units: unitless

description: Unique identifier for each date

labID (unitless)

TSid: S2LcR3viMMy4hnX

variableName: labID

units: unitless

description: The laboratory number of the dated sample

materialDated (unitless)

TSid: S2LcRUIl5LvSodQ

variableName: materialDated

units: unitless

description: Mineralogy of the dated sample

ageUncorr (yr BP)

TSid: S2LcRMAIQTzDm7r

variableName: ageUncorr

units: yr BP

description: Uncorrected age of the dated sample in years

ageUncorrUncertaintyHi (yr BP)

TSid: S2LcR0spNK2AP6b

variableName: ageUncorrUncertaintyHi

units: yr BP

description: Positive uncertainty of the uncorrected age of the dated sample in years

ageUncorrUncertaintyLow (yr BP)

TSid: S2LcRxLZrVUbiG1

variableName: ageUncorrUncertaintyLow

units: yr BP

description: Negative uncertainty of the uncorrected age of the dated sample in years

retained (unitless)

TSid: S2LcRJd7dDkf8vf

variableName: retained

units: unitless

description: Indication of whether the date is used in the original age model (opposite of rejected)

U238 (ppb)

TSid: S2LcRDhTJ4bcBzg

variableName: U238

units: ppb

description: 238U content of the dated sample in ppb

U238Uncertainty (ppb)

TSid: S2LcRxAXN9D9DEW

variableName: U238Uncertainty

units: ppb

description: 238U 2-sigma uncertainty of dated sample in ppb

Th232 (ppt)

TSid: S2LcRtw5PwEuoiA

variableName: Th232

units: ppt

description: 232Th content of the dated sample in ppt

Th232Uncertainty (ppt)

TSid: S2LcRbBiUvQ2U0a

variableName: Th232Uncertainty

units: ppt

description: 232Th 2-sigma uncertainty of the dated sample in ppt

Th230/Th232 (unitless)

TSid: S2LcR7NRovarG3F

variableName: Th230/Th232

units: unitless

description: 230Th/232Th activity ratio of the dated sample

Th230/Th232Uncertainty (unitless)

TSid: S2LcR1dYU2Dfj7f

variableName: Th230/Th232Uncertainty

units: unitless

description: 230Th/232Th activity ratio 2-sigma uncertainty of the dated sample

Th230/U238 (unitless)

TSid: S2LcRIxmeKjlnGT

variableName: Th230/U238

units: unitless

description: 230Th/238U activity ratio of the dated sample

Th230/U238Uncertainty (unitless)

TSid: S2LcRiskq3LeFyR

variableName: Th230/U238Uncertainty

units: unitless

description: 230Th/238U activity ratio 2-sigma uncertainty of the dated sample

U234/U238 (unitless)

TSid: S2LcR1Xk5fq5dQt

variableName: U234/U238

units: unitless

description: 234U/238U activity ratio of the dated sample

U234/U238Uncertainty (unitless)

TSid: S2LcRoTriD66nSk

variableName: U234/U238Uncertainty

units: unitless

description: 234U/238U activity ratio 2-sigma uncertainty of the dated sample

Th230/Th232Initial (unitless)

TSid: S2LcRrjoeOhi5Ne

variableName: Th230/Th232Initial

units: unitless

description: Initial 230Th/232Th activity ratio for the detrital correction

Th230/Th232InitialUncertainty (unitless)

TSid: S2LcR40TQc429ES

variableName: Th230/Th232InitialUncertainty

units: unitless

description: Initial 230Th/232Th activity ratio uncertainty for the detrital correction

decayConstant (unitless)

TSid: S2LcRqQLMEEB9r4

variableName: decayConstant

units: unitless

description: Description of the half-life used for 230Th and 234U for U/Th samples

age (yr BP)

TSid: S2LcRcROsa5jLuC

variableName: age

units: yr BP

description: Corrected age of the dated sample in years

ageUncertaintyHigh (yr BP)

TSid: S2LcR6usfKNQjWg

variableName: ageUncertaintyHigh

units: yr BP

description: Positive uncertainty of corrected age of the dated sample in years

ageUncertaintyLow (yr BP)

TSid: S2LcRFwhlvRUcA6

variableName: ageUncertaintyLow

units: yr BP

description: Negative uncertainty of corrected age of the dated sample in years

age_type (unitless)

TSid: S2LcR8h1p8UpYRM

variableName: age_type

units: unitless

description: broad class of age control