Which of the following is not an example of proxy data used for paleoclimate reconstruction?
a. |
Pollen records extracted from lake sediments. |
|
b. |
Oxygen isotopes in ice cores. |
|
c. |
Tree ring patterns from bristlecone pines. |
|
d. |
Radiocarbon isotopes from sea water. |
Proxy data includes tree ring, ice core, sediment cores(pollen) etc but not radiocarbon isotopes from sea water
Therefore D. Radiocarbon isotopes from sea water
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