Multiple thermometry in Paleo Climate and Historic Climate
R AND D ASSOCIATES MARINA DEL REY CA
Pagination or Media Count:
The principle of isotope thermometry is that isotope ratios are temperature dependent. It is proposed that isotope ratios in bio-organic material may have independent temperature coefficients, so that by measuring ratios for several elements, e.g. hydrogen, carbon and oxygen, it may be possible to show that a temperature change occurred. Assuming that cellulose is formed almost at equilibrium, temperature coefficients for C, H and O are computed and found measurable size. The coefficients computed for C13C12 and DH agree to be of with measured values. Thus indications are that temperature changes in past climates may be measured in old tree rings, using this principle of multiple thermometers.
- Geology, Geochemistry and Mineralogy