Our proxies,
including oxygen isotopes and annual ring widths (MAT = — 0.5 ± 1.9 °C), coexistence of paleovegetation (MAT = — 0.4 ± 4.1 °C), and bacterial tetraether composition in paleosols (MAT = — 0.6 ± 5.0 °C), yield estimates that are statistically indistinguishable.
Not exact matches
As part of that effort, a team
including UChicago cosmochemist Nicolas Dauphas performed the largest study to date of
oxygen isotopes in lunar rocks, and found a small but measurable difference in the makeup of the moon and Earth.
The paleoclimate data, which
included mainly changes in the
oxygen isotopes of the calcium carbonate deposits, were then compared to similar records from other caves, ice cores, and sediment records as well as model predictions for water availability in the Middle East and west central Asia today and into the future.
What's Next: The team also is developing techniques that would work with other
isotopes,
including nitrogen and
oxygen.
There are also a number of paleoclimatic recorders of
oxygen isotopes,
including lake / ocean records, speleothems (in caves), corals, ice cores, etc..
There are also a number of paleoclimatic recorders of
oxygen isotopes,
including lake / ocean records, speleothems (in caves), corals, ice cores, etc..