Oxygen-17 (17 O) is a stable isotope of oxygen with a low isotopic abundance of about 0.038%. 17 O is primarily made by burning hydrogen into helium in the CNO cycle, making it a common isotope in the …

Ice in glaciers has less 18 O than the seawater, but the proportion of heavy oxygen also changes with temperature. To understand why this might be so, we need to think about the process of glacier …

Jun 21, 2025 · Oxygen-18 (¹⁸O) is a stable isotope of oxygen with a nucleus containing 8 protons and 10 neutrons, giving it a higher atomic mass than the more abundant Oxygen-16.

May 6, 2005 · Water vapor gradually loses 18 O as it travels from the equator to the poles. Because water molecules with heavy 18 O isotopes in them condense more easily than normal water …

Oxygen-18 (δ^18O) is defined as a stable isotope of oxygen that is used for isotope analysis, reflecting the water an individual ingests during life and serving as an indicator of climate and diet. It can …

Oxygen-16 is the dominant isotope, making up more than 99 percent of all natural oxygen; oxygen-18 makes up 0.2 percent. However, the exact concentration of oxygen-18 in precipitation, particularly at …

May 25, 2024 · An in-depth exploration of Oxygen-18, a stable isotope used in climatology, medical diagnostics, and research, focusing on its separation methods and applications.

Oxygen's two most abundant stable isotopes are oxygen-18 and oxygen-16. A water molecule contains a single oxygen atom, which may be either isotope.

Dec 6, 2022 · The origin of the 17,18 O-rich composition observed in some lunar samples is yet unresolved. However, it is tempting to speculate that it represents the oxygen composition of comets …

Dec 16, 2024 · Oxygen isotopes are variations of the oxygen element that differ in the number of neutrons within their nuclei, resulting in different masses. The most common isotopes are oxygen-16 …