Publikationsdatum:
2012-08-22
Beschreibung:
Answer to Blaauw et al. (I.I.-A., J.L.B., R.B.F., J.P.K., A.W.)Blaauw et al. (1) take issue with our age–depth model for the Cuitzeo core. They state that no offset for our accelerator mass spectrometry (AMS) 14C dates was quantified, that our identification of the Cieneguillas tephra is doubtful, that we used an outdated calibration model, and they object to our rejection of six AMS dates in the anomalous zone.Regarding the offset question, dissolved HCO3 in modern Lake Cuitzeo water precipitated in the laboratory as CaCO3 yielded a modern age (US Geological Service laboratory #WW 5645), so the offset is deemed to...
Schlagwort(e):
Letters
Print ISSN:
0027-8424
Digitale ISSN:
1091-6490
Thema:
Biologie
,
Medizin
,
Allgemeine Naturwissenschaft
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