Assessing kinetic fractionation in brachiopod calcite using clumped isotopes
نویسندگان
چکیده
منابع مشابه
Assessing Avian Diets Using Stable Isotopes Ii: Factors Influencing Diet-tissue Fractionation’
Studies using stable-isotope analysis to infer diet require a knowledge of how stable-isotope ratios in consumer tissues are related to dietary values. We determined 6°C and VN diet-tissue fractionation factors for blood, liver, muscle, bone collagen and feathers of domestic chickens (Gallus gullus), Japanese Quail (Coturnix juponica) and Ring-billed Gulls (Lams deluwarensis) and for blood and ...
متن کاملMicrobiological Fractionation of Sulphur Isotopes.
A fractionation of sulphur isotopes was found in all hetabolic processes investigated except those in which elemental sulphur was the starting substrate for growth of Thiobacillus concretivorus and Chromatiurn sp. and for reduction by Saccharomyces cerevisiae. Except for polythionates formed during sulphide oxidation by T. concretivorus or Chromatiurn sp., the products of metabolism were enrich...
متن کاملKinetic Fractionation of Stable Isotopes in Carbonates on Mars: Terrestrial Analogs
An ancient Martian hydrosphere consisting of an alkali-rich ocean would likely produce solid carbonate minerals through the processes of evaporation and/or freezing. We postulate that both (or either) of these kinetically-driven processes would produce carbonate minerals whose stable isotopic compositions are highly fractionated (enriched) with respect to the source carbon. Various scenarios ha...
متن کاملDolomitization processes in hydrocarbon reservoirs: insight from geothermometry using clumped isotopes
Clumped isotopes geothermometry was applied to two dolomitic hydrocarbon reservoirs. Results indicate that late burial dolomitization occurred at ~110°C in the Albian Pinda dolostone (offshore Angola) and ~90°C in the Mano-Meillon dolostone (Aquitaine Basin, France), and did not continue on during subsequent burial/thermal evolution to present-day conditions (150160°C). This study illustrates t...
متن کاملFractionation of hydrogen isotopes in lipid biosynthesis
Isotopic compositions of carbon-bound hydrogen in individual compounds from eight dierent organisms were measured using isotope-ratio-monitoring gas chromatography±mass spectrometry. This technique is capable of measuring D/H ratios at natural abundance in individual lipids yielding as little as 20 nmol of H2, and is applicable to a wide range of compounds including hydrocarbons, sterols, and ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Scientific Reports
سال: 2018
ISSN: 2045-2322
DOI: 10.1038/s41598-017-17353-7