DK: The LiPD file looks corupt. I assume that there should be data for 3 types of CaCO3 (snails, 'codes, and algae). Plus, time series should extend to 4.5 ka  MJ: LiPD file works ok in Playground, there are three core drives displayed seperately. AZ: check if chronology and/or sensor integration time. integrationTime "uncertainty type" given but no time units.

five shells of the spinose morphotype of P. coronatus were selected and crushed to open internal chambers, cleaned, and fragments re-picked prior to pretreatment...Gastropod shells were broken open and sonically cleaned to remove fine-grained particles from internal chambers...All carbonate samples were soaked in ~15% H2O2 for 30 min to remove organic matter and then rinsed with methanol. The methanol was removed with a syringe, and samples were dried in an oven at 508C for 24 h. Gastropods and Chara samples were ground to a homogeneous powder and ostracods were analyzed whole. Approximately 50?100 Ag of carbonate was loaded into individual reaction vessels for isotopic analysis

The salinity and 18O content of the lake water increased as a result of reduced precipitation and/or increased evaporation in the mid- to late 1500s

Variations in carbonate d18O in Aguada X?caamal were principally controlled by changes in the d18O of lake water that, in turn, reflect changes in the lake?s hydrologic budget (evaporation, precipitation, and outflow) and the d18O of incoming precipitation and groundwater

Chonology; multiple potential controls on d18O

integrationTime "uncertainty type" given but no time (GF)

Gastropods data used here, also ostracod and charphyte carbonate records which show the same trends.

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