Charlotte L. Pearson is a researcher at Cornell University. She is a colleague and former student of Sturt W. Manning, whom I have accused of repeated research fraud. Following is a copy of an e-mail exchange that I had with Pearson, Cc'ing Manning, about a report that the two had co-authored: Pearson et al. [J.Arch.Sci., 2009].

2009-10-23 E-mail from Keenan to Pearson.

2009-10-29 Reply from Pearson.

2009-11-03 Rejoinder from Keenan.

Note: most of the references cited in the e-mails are listed below.

See also

Allegations of research misconduct
Remarks on Manning et al. [Radiocarbon, 2002]

Denton J.S., Pearce N.J.G. (2008), “Comment on "A synchronized dating of three Greenland ice cores throughout the Holocene" by B.M. Vinther et al.: no Minoan tephra in the 1642 B.C. layer of the GRIP ice core”, Journal of Geophysical Research, 113, D04303. doi: 10.1029/2007JD008970.

Eastwood W.J., Tibby J., Roberts N., Birks H.J.B., Lamb H.F. (2002), “The environmental impact of the Minoan eruption of Santorini (Thera): statistical analysis of palaeoecological data from Gölhisar, southwest Turkey”, The Holocene, 12: 431–444. doi: 10.1191/0959683602hl557rp.

Frisia S., Badertscher S., Borsato J., Susini J., Göktürk O.M., Cheng H., Edwards R., Kramers J., Tüysüz O., Fleitmann D. (2008), “The use of stalagmite geochemistry to detect past volcanic eruptions and their environmental impacts”, PAGES News, 16.3: 25–26.

Griggs C.B., Manning S.W. (2009), “A reappraisal of the dendrochronology and dating of Tille Höyük (1993)”, Radiocarbon, 51: 711–720.

Hall G.S., Yamaguchi D.K., Rettberg T.M. (1990), “Multielemental analysis of tree rings by inductively coupled plasma mass spectrometry”, Journal of Radioanalytical and Nuclear Chemistry, Letters, 146: 255–265.

Keenan D.J. (2003), “Volcanic ash retrieved from the GRIP ice core is not from Thera”, Geochemistry, Geophysics, Geosystems, 4 (2003). doi: 10.1029/2003GC000608.

Keenan D.J. (2006), “Anatolian tree-ring studies are untrustworty”, (manuscript).

Pearson C.L., Dale D.S., Brewer P.W., Kuniholm P.I., Lipton J., Manning S.W. (2009), “Dendrochemical analysis of a tree-ring growth anomaly associated with the Late Bronze Age eruption of Thera”, Journal of Archaeological Science, 36: 1206–1214. doi: 10.1016/j.jas.2009.01.009.

Robock A., Mao J. (1995), “The volcanic signal in surface temperature observations”, Journal of Climate, 8: 1086–1103.

Siklósy Z., Demény A., Vennemann T.W., Pilet S., Kramers J., Leél-Őssy S., Bondár M., Shen C.-C., Hegner E. (2009), “Bronze Age volcanic event recorded in stalagmites by combined isotope and trace element studies”, Rapid Communications in Mass Spectrometry, 23: 801–808. doi: 10.1002/rcm.3943.

Southon J. (2002), “A first step to reconciling the GRIP and GISP2 ice-core chronologies, 0–14,500 yr B.P.”, Quaternary Research, 57: 32–37. doi: 10.1006/qres.2001.2295.

Douglas J. Keenan