L <- lipdR::readLipd("https://lipdverse.org/data/476q5ONxxmBc5wZcLXy2/1_0_11/TalismanCave.Tan.2021.lpd")Report an issue (include datasetId and version)
In compilations: (only most recent versions are shown)
archiveType: Speleothem
originalDataUrl: https://doi.org/10.1016/j.scib.2020.10.011
lipdVersion: 1.3
author: list(list(name = "Tan, Liangcheng"))
journal: Science Bulletin
volume: 66
pages: 603-611
title: Megadrought and cultural exchange along the proto-silk road
doi: 10.1016/j.scib.2020.10.011
latitude: 40.39
longitude: 72.35
elevation: 1516
siteName: Talisman Cave (F11)
TSid: WEB0b6a807a
variableName: age
units: yr BP
TSid: WEBcbb13563
variableName: PC1
units: unitless
description: principal component #1 of d18O and d13C and Sr/Ca; positive values are drier conditions
variable: precipitation
direction: negative
scope: climate
variableDetail: @surface
seasonality: Nov-May
basis: "Significant positive correlations betweend13C,d18O, and Sr/Casuggest local precipitation exerts a common control on all. As aresult, we applied principal components analysis (PCA) to the threeproxy records (Table S3online). PC1, which explains 62% of thetotal variance, was then used as a drought index for this region,with higher values representing less precipitation, and lower val-ues representing more precipitation. Considering high evaporationand low precipitation in summer and autumn, we infer that ourrecord largely reflects changes in winter/spring precipitation"
seasonalityGeneral: winterOnly
variableGroup: P
TSid: WEBbed385aa
variableName: age
units: yr BP
TSid: WEBa6853b5b
variableName: d18O
units: permil
variable: precipitation
direction: negative
scope: climate
variableDetail: @surface
seasonality: Nov-May
basis: ""However, the significantly positive correlation between thed18O andd13C of F11 suggests precipitation as the primary control-ling factor...decreased winter/spring precipitation will enrich δ18O values in a speleothem.""
seasonalityGeneral: winterOnly
variableGroup: P
TSid: WEB9423a3ce
variableName: d13C
units: permil
scope: climate
TSid: WEBeb20435e
variableName: growthRate
units: mm/yr
scope: climate
TSid: WEB4495bba7
variableName: age
units: yr BP
TSid: WEBfc273ca6
variableName: Sr/Ca
units: permil
scope: climate
TSid: WEBcf167609
variableName: depth (mm)
units: unitless
TSid: WEB7452dbed
variableName: Sample
units: unitless
TSid: WEB7f1a90e6
variableName: 238U (ppb)
units: unitless
TSid: WEBc4aa4461
variableName: 238U error (ppb)
units: unitless
TSid: WEB790603fe
variableName: 232Th (ppt)
units: unitless
TSid: WEBbad5bc36
variableName: 232Th error (ppt)
units: unitless
TSid: WEBab9ed315
variableName: 230Th / 232Th (atomic x10-6)
units: unitless
TSid: WEB7bd5dda6
variableName: 230Th / 232Th error (atomic x10-6)
units: unitless
TSid: WEB11ee1b23
variableName: d234U* (measured)
units: unitless
TSid: WEB5ac84d90
variableName: d234U* error (measured)
units: unitless
TSid: WEBbd9288ce
variableName: 230Th / 238U (activity)
units: unitless
TSid: WEB8ff0a4a9
variableName: 230Th / 238U error (activity)
units: unitless
TSid: WEBcc2b7702
variableName: 230Th Age (yr) (uncorrected)
units: unitless
TSid: WEBe49155ca
variableName: 230Th Age (yr) error (uncorrected)
units: unitless
TSid: WEB7849819e
variableName: 230Th Age (yr) (corrected)
units: unitless
TSid: WEB7eb260b9
variableName: 230Th Age (yr) error (corrected)
units: unitless
TSid: WEB85d8c976
variableName: d234UInitial** (corrected)
units: unitless
TSid: WEB6a515a14
variableName: d234UInitial** error (corrected)
units: unitless
TSid: WEB70441bba
variableName: 230Th Age (yr BP)*** (corrected)
units: unitless
TSid: WEBd7ada14b
variableName: 230Th Age (yr BP)*** error (corrected)
units: unitless
root
pub
pub1
geo
PaleoData columns
age (yr BP) [1-1]
PC1 (unitless) [1-1]
interpretation
1
age (yr BP) [1-2]
d18O (permil) [1-2]
interpretation
1
d13C (permil) [1-2]
interpretation
1
growthRate (mm/yr) [1-2]
interpretation
1
age (yr BP) [1-3]
Sr/Ca (permil) [1-3]
interpretation
1
ChronData columns
depth (mm) (unitless)
Sample (unitless)
238U (ppb) (unitless)
238U error (ppb) (unitless)
232Th (ppt) (unitless)
232Th error (ppt) (unitless)
230Th / 232Th (atomic x10-6) (unitless)
230Th / 232Th error (atomic x10-6) (unitless)
d234U* (measured) (unitless)
d234U* error (measured) (unitless)
230Th / 238U (activity) (unitless)
230Th / 238U error (activity) (unitless)
230Th Age (yr) (uncorrected) (unitless)
230Th Age (yr) error (uncorrected) (unitless)
230Th Age (yr) (corrected) (unitless)
230Th Age (yr) error (corrected) (unitless)
d234UInitial** (corrected) (unitless)
d234UInitial** error (corrected) (unitless)
230Th Age (yr BP)*** (corrected) (unitless)
230Th Age (yr BP)*** error (corrected) (unitless)