Definition of Alkenones. Meaning of Alkenones. Synonyms of Alkenones

- Alkenones are long-chain unsaturated methyl and ethyl n-ketones produced by a few phytoplankton species of the class Prymnesiophyceae. Alkenones typically...
- compounds, known as alkenones, can be found in marine sediments long after other soft parts of the organisms have decomposed. Alkenones are most commonly...
- last 16,000 years from records of planktonic stable oxygen isotopes and alkenone unsaturation ratios". Palaeogeography, Palaeoclimatology, Palaeoecology...
- isotopic composition of alkenones often reflect the isotopic enrichment or depletion of the surrounding environment, and δDs of alkenones in different regions...
- the summer thermocline. and for its production of molecules known as alkenones that are commonly used by earth scientists as a means to estimate past...
- characteristic of certain climatic zones. Biomarker molecules such as the alkenones may yield information about their temperature of formation. Chemical signatures...
- Several geochemical proxy tools include long-chain organic molecules (e.g. alkenones), stable and radioactive isotopes, and trace metals. Additionally, sediment...
- temperatures from the presence or absence of certain lipids and long chain alkenones, as these molecules are very sensitive to temperature. This analysis provides...
- citric acid cycle, which is of great importance in bioenergy. An enone (or alkenone) is an organic compound containing both alkene and ketone functional groups...
- considerations (especially δ18O); the Mg/Ca ratio of foram tests, and alkenones, are also useful. Often, many are used in conjunction to get a multi-proxy...