In geochemistry, paleoclimatology, and paleoceanography δ13C (pronounced "delta c thirteen") is an isotopic signature, a measure of the ratio of the two...

signature of the SPICE event is a positive δ13C excursion, characterized by a 4 to 6 ‰ (per mille) shift in δ13C values within carbonate successions around...

An animal that eats food with high δ13C values will have a higher δ13C than one that eats food with lower δ13C values. The animal's own biochemical...

at any one time, δ18O and δ13C preserved in the fossil record can be affected by regional factors. Carboniferous δ18O and δ13C records show regional differences...

increases and δ13C values can be as low as −32‰. The δ13C value for animals depends on their diet. An animal that eats food with high δ13C values will have...

photosynthetic pathway that produces δ13C values averaging about −12.5‰. It follows that eating these different plants will affect the δ13C values in the consumer's...

87Sr/86Sr and δ13C. Continued erosion of the deeper levels of the Gondwanan mountain belts led to a peak in 87Sr/86Sr and linked positive δ13C and δ34S excursions...

expressed in using delta notation of δ13C ("delta thirteen C"), which is reported in parts per thousand (per mille, ‰). δ13C is defined in relation to the Vienna...

Douglas J.; Freeman, Katherine H. (September 5, 2018). "Fatty acid specific δ13C values reveal earliest Mediterranean cheese production 7,200 years ago"....

forms a substantial part of birds' eggshells, and the δ13C of the diet is reflected in the δ13C of the calcite of the shell. The largest documented single...

between minerals can be used to estimate the temperature of equilibration. The δ13C and δ34S of coexisting carbonate minerals and sulfides can be used to determine...

on 29 December 1898. Recent studies on the isotopic signature analysis of Δ13C and Nitrogen-15 in their bone collagen and hair keratin were published in...

2019). "Sea level, carbonate mineralogy, and early diagenesis controlled δ13C records in Upper Ordovician carbonates". Geology. 48 (2): 194–199. doi:10...

Period/System (2250–2060 Ma) – names are respectively for the Lomagundi–Jatuli δ13C isotopic excursion event spanning its duration, and for the (proposed) first...

Rico): Chemical characterization and organic matter provenance using bulk δ13C, C/N, alkaline CuO oxidation-GC/MS, and solid-state". Geochemistry, Geophysics...

of the earliest examples of biological control. The δ13C of the emu's diet is reflected in the δ13C of the calcite of its egg shell. Small stones are swallowed...

through kinetic fractionation. In aqueous geochemistry, by analyzing the δ13C value of carbonaceous material found in surface and ground waters, the source...

back into the ocean, raising the buried δ13C. Many of the deeper water sections show lower increases in δ13C than the shallow water sections. It's been...

which are released to meet a prospective carpogonium in its conceptacle. The δ13C values of red algae reflect their lifestyles. The largest difference results...

intensive chemical weathering in the Deccan basalts. Abrupt increase in δ13C values and decrease in TOC content accompanied with a significant increase...

upwelling of the northwestern coast of Africa, planktonic foraminiferal δ13C records show upwelling and primary productivity were not enhanced during...

Salouros H, Cawley AT, Robertson J, Heagney AC, Arenas-Queralt A (June 2010). "δ13C and δ2H isotope ratios in amphetamine synthesized from benzaldehyde and nitroethane"...

a duration of 60 ± 48 thousand years. A large, abrupt global decrease in δ13C, the ratio of the stable isotope carbon-13 to that of carbon-12, coincides...

lasted from 234 to 227 Ma. At the Carnian-Norian boundary occurred a positive δ13C excursion believed to signify an increase in organic carbon burial. From...

span formality Formal Lower boundary definition Strong negative anomaly in δ13C values at the PETM Lower boundary GSSP Dababiya section, Luxor, Egypt 25°30′00″N...

sediment hydroxyarchaeol had very depleted δ13C at methane seeps. Both the methane and DIC present also had depleted δ13C values, but not as a perfect match to...

2021). "Improved Constraints on Global Methane Emissions and Sinks Using δ13C-CH4". Global Biogeochemical Cycles. 35 (6): e2021GB007000. Bibcode:2021GBioC...

2021). "Improved Constraints on Global Methane Emissions and Sinks Using δ13C-CH4". Global Biogeochemical Cycles. 35 (6): e2021GB007000. Bibcode:2021GBioC...

P.; Hillier, C.; Riding, J. B.; Kendrick, C. (2015). "The application of δ13C, TOC, C/N geochemistry to reconstruct Holocene relative sea levels and paleoenvironments...

IAEA-603 isotopic standard in mass spectrometry for the calibration of δ18O and δ13C. Michelangelo's Pietà, St. Peter's Basilica, Vatican City Replica of the...