palaeothermometer

I think we need to take a close look at the coral story and the use of Mg/Ca ratios as a palaeothermometer carefully.

Thompson: "Remarkably Similar" « Climate Audit 2006

Under these conditions we can think of using the Mg/Ca ratio as measured in biogenic carbonates as a palaeothermometer.

Thompson: "Remarkably Similar" « Climate Audit 2006

There is a clear need for development of a suitable palaeothermometer that can be applied to reliable archives using sound phenomenological principles and with a well understood constitutive relationship between temperature and the parameter that is measured.

Peer Review of Bürger and Cubasch « Climate Audit 2006

Out of interest my last proposal aimed at developing a new palaeothermometer wasn’t successful!

Thompson: "Remarkably Similar" « Climate Audit 2006

For myself I’m trying to develop a new palaeothermometer based on 18-O partitioning between 13-C and 12-C in the carbonate anion of carbonate minerals speleothems, shells, tufas, travertines etc.

Sciencemag on House E&C Hearing « Climate Audit 2006