A lower ¹⁸O/¹⁶O ratio in ice core indicates a_________ climate,whereas a higher ¹⁸O/¹⁶O ratio indicates a_________ climate. A)cooler; warmer B)warmer; hot C)warmer; cooler D)cooler; cold

Question

Quizplus · Accepted Answer

The lower 18O/16O ratio in ice core indicates a cooler climate because during cooler periods, more heavy isotopes (18O) are retained in the ice, leaving the remaining water depleted in heavy isotopes. Conversely, a higher 18O/16O ratio indicates a warmer climate because during warmer periods, more heavy isotopes (18O) are evaporated from the ocean and transported to higher latitudes where they are trapped in ice, leading to a higher ratio of heavy isotopes in the ice core.

A Lower 18O/16O Ratio in Ice Core Indicates A_________ Climate,whereas

A Lower ¹⁸O/¹⁶O Ratio in Ice Core Indicates A_________ Climate,whereas