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searching for Δ13C 161 found (274 total)

alternate case: δ13C

Mulde event (367 words) [view diff] exact match in snippet view article find links to article

extinction. Higher resolution δ13C isotope analysis identifies differences in the organic and carbonate carbon isotope curves (Δ13C), allowing the inference

Cholestane (1,835 words) [view diff] exact match in snippet view article find links to article

m/z 217 fragment in order to improve identification of specific isomers. δ13C values of cholestane reflect the carbon isotope composition of the animals

Piauhytherium (991 words) [view diff] exact match in snippet view article find links to article

Intertropical Region: isotopic diet (δ13C), niche differentiation, guilds and paleoenvironmental reconstruction (δ13C, δ18O)". Historical Biology. 33 (10):

Thanetian (786 words) [view diff] exact match in snippet view article find links to article

Stage (the base of the Ypresian) is defined at a strong negative anomaly in δ13C values at the global thermal maximum at the Paleocene-Eocene boundary. The

Ypresian (1,334 words) [view diff] exact match in snippet view article find links to article

The base of the Ypresian Stage is defined at a strong negative anomaly in δ13C values at the PETM. The official reference profile (GSSP) for the base of

Toarcian Oceanic Anoxic Event (11,601 words) [view diff] exact match in snippet view article find links to article

positive carbon isotope excursion as measured by δ13C values, the TOAE is preceded by a global negative δ13C excursion recognised in fossil wood, organic

Carrara marble (1,886 words) [view diff] exact match in snippet view article find links to article

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

Calculation of radiocarbon dates (3,335 words) [view diff] exact match in snippet view article find links to article

normalizing δ13C values, is Pee Dee Belemnite (PDB), a fossil which has a 13 C/12 C ratio of 1.12372%. A related standard is the use of wood, which has a δ13C of

Soil respiration (5,597 words) [view diff] exact match in snippet view article find links to article

has a slightly higher abundance of 13C (δ13C ≈ −10‰) than the endogenous (natural) carbon in a C3 ecosystem (δ13C=−25 to −28‰). Cane sugar can be sprayed

Stable isotope composition of amino acids (2,882 words) [view diff] exact match in snippet view article find links to article

single organism. In cyanobacteria, Macko et al. observed a ~30‰ range in δ13C values amongst the amino acids. Amino acids produced from the same precursors

Catonyx (1,780 words) [view diff] exact match in snippet view article find links to article

Intertropical Region: isotopic diet (δ13C), niche differentiation, guilds and paleoenvironmental reconstruction (δ13C, δ18O)". Historical Biology. 33 (10):

Toxodon (2,401 words) [view diff] exact match in snippet view article find links to article

Pleistocene megamammals from the Brazilian Intertropical Region: Feeding ecology (δ13C), niche breadth and overlap". Quaternary Science Reviews. 170: 152–163. doi:10

Evolution of photosynthesis (3,689 words) [view diff] exact match in snippet view article find links to article

denoted δ13C. C3 plants are on average around 14‰ (parts per thousand) lighter than the atmospheric ratio, while C4 plants are about 28‰ lighter. The δ13C of

Andean-Saharan glaciation (6,718 words) [view diff] exact match in snippet view article find links to article

marked by a similarly meteoric shift in δ18O towards more negative values. δ13C values likewise fall sharply at the beginning of the Silurian. Following

Kinetic isotope effects of RuBisCO (2,412 words) [view diff] exact match in snippet view article find links to article

isotope fractionation (represented by Δ13C), with larger values of Sc/o corresponding with a larger values of Δ13C. It has been theorized that because increasing

Valgipes (1,449 words) [view diff] exact match in snippet view article find links to article

Intertropical Region: isotopic diet (δ13C), niche differentiation, guilds and paleoenvironmental reconstruction (δ13C, δ18O)". Historical Biology. 33 (10):

Per mille (899 words) [view diff] exact match in snippet view article find links to article

symbol. Per mille may be used to express stable-isotope ratios—for example: "δ13C was measured at −3.5‰" In Italy, it is possible to nominate a charity or

Γ-Carotene (1,271 words) [view diff] exact match in snippet view article find links to article

Chromatiaceae is generally found to be depleted in δ13C as where Chlorobiaceae are enriched in δ13C in comparison to typical oxygenic bacteria by 7-8 ppm

Delia Oppo (1,128 words) [view diff] exact match in snippet view article find links to article

Shackleton, N.J.; Oppo, D.W. (1990-03-01). "Evolution of Atlantic-Pacific δ13C gradients over the last 2.5 m.y." Earth and Planetary Science Letters. 97

Lake Matano (2,232 words) [view diff] exact match in snippet view article find links to article

millennia old, and could not have been formed due to hydrothermal activity. The δ13C-CH4 in Lake Matano is around -70 permil, suggesting that the carbon in the

Medieval bioarchaeology (2,991 words) [view diff] exact match in snippet view article find links to article

individuals. Isotope analyzing can be used to study the food source through δ13C and δ15N values, as a higher in δ15N is an indication of higher reliability

Holmesina (401 words) [view diff] exact match in snippet view article find links to article

Alexander; Dantas, Mário André Trindade (December 2021). "Isotopic paleoecology (δ13C, δ18O) of two megamammals assemblages from the late pleistocene of Brazilian

Paquier Event (2,224 words) [view diff] exact match in snippet view article find links to article

Kilian subevent was defined by a negative δ13C excursion from about 2-2.5% to 0.5-1.5% followed by a gradual δ13C rise in the Atlantic Ocean, though the

Margay (2,507 words) [view diff] exact match in snippet view article find links to article

Taxonomy, radiocarbon dating, isotopic paleoecology (δ13C), and paleoenvironment reconstruction (δ13C, δ18O)". Quaternary International. 668: 7–13. doi:10

End-Botomian mass extinction (911 words) [view diff] exact match in snippet view article find links to article

M.; Derry, L. A.; Rozanov, A. Yu.; Zhuravlev, A. Yu. (1994). "Multiple δ13C excursions spanning the Cambrian explosion to the Botomian crisis in Siberia"

Capitanian (931 words) [view diff] exact match in snippet view article find links to article

isotopes in marine limestone from the Capitanian age show an increase in δ13C values. The change in carbon isotopes in the sea water reflects cooling of

Collared peccary (1,994 words) [view diff] exact match in snippet view article find links to article

Taxonomy, radiocarbon dating, isotopic paleoecology (δ13C), and paleoenvironment reconstruction (δ13C, δ18O)". Quaternary International. 668: 7–13. doi:10

Selandian (977 words) [view diff] exact match in snippet view article find links to article

Cenozoic#Paleogene Arenillas I, Molina E, Ortiz S, Schmitz B (2008). "Foraminiferal and δ13C isotopic event-stratigraphy across the Danian-Selandian transition at Zumaya

Ekorus (998 words) [view diff] exact match in snippet view article find links to article

reconstruction of a lower Pleistocene large mammal community using biogeochemical (δ13C, δ15N, δ18O, Sr:Zn) and ecomorphological approaches". Paleobiology. Turner

Sapropel (1,094 words) [view diff] exact match in snippet view article find links to article

non-sapropel times; an increase in the δ15N and corresponding decrease in δ13C tells of rising productivity as a result of nitrogen fixation. This effect

Dengying Formation (359 words) [view diff] exact match in snippet view article find links to article

PMID 15731406. S2CID 11673032. Zhou, Chuanming; Xiao, Shuhai (2006). "Ediacaran .δ13C chemostratigraphy of South China". Chemical Geology. 237 (1–2): 89–108. doi:10

Glyptotherium (10,999 words) [view diff] exact match in snippet view article find links to article

Intertropical Region: isotopic diet (δ13C), niche differentiation, guilds and paleoenvironmental reconstruction (δ13C, δ18O)". Historical Biology. 33 (10):

Arianites (ammonite) (58 words) [view diff] exact match in snippet view article

Mutterlose, Jörg; Wiedenroth, Kurt (2015-01-01). "Stable isotope data (δ18O, δ13C) of the ammonite genus Simbirskites — implications for habitat reconstructions

Dapingian (1,207 words) [view diff] exact match in snippet view article find links to article

Ordovician System and its relations to major regional series and stages and to δ13C chemostratigraphy". Lethaia. 42 (1): 97–107. Bibcode:2009Letha..42...97B

List of extinction events (1,664 words) [view diff] exact match in snippet view article find links to article

Preto, N.; Roghi, G.; Wignall, P.B. (2012). "Discovery of a major negative δ13C spike in the Carnian (Late Triassic) linked to the eruption of Wrangellia

Dolichosauridae (1,179 words) [view diff] exact match in snippet view article find links to article

; Ferguson, K.; Polcyn, M. J.; Rennison, C. (1 April 2016). "Cretaceous δ13C stratigraphy and the age of dolichosaurs and early mosasaurs". Netherlands

Drumian (720 words) [view diff] exact match in snippet view article find links to article

Shen, Xiaolin Zhang, Hao Zhu, Lilin Sun (2019). "A paired carbonate–organic δ13C approach to understanding the Cambrian Drumian carbon isotope excursion (DICE)"

Okenane (1,776 words) [view diff] exact match in snippet view article find links to article

biomass of the purple sulfur bacteria, Chromatiaceae is often depleted in δ13C compared to typical oxygenic phototrophs while the green sulfur bacteria

Suess effect (1,090 words) [view diff] exact match in snippet view article find links to article

Suess-Effect? The need to correct for the Suess effect in the application of δ13C in sediment of autotrophic Lake Tanganyika, as a productivity proxy in the

Save Our Seas Foundation (1,890 words) [view diff] exact match in snippet view article find links to article

Michael R. (2019). "Effects of anticoagulants on stable-isotope values (δ13C and δ15N) of shark blood components". Journal of Fish Biology. 95 (6): 1535–1539

Thiophene (2,258 words) [view diff] exact match in snippet view article find links to article

possible ancient biosignature on Mars. Detailed analyses of carbon isotopes (δ13C) at trace level by a next generation of Martian rovers, such as Rosalind

Tell Halula (1,182 words) [view diff] exact match in snippet view article find links to article

reproduction control of first domesticated cattle in PPNB tell Halula site": δ13C and δ18O values from sequential bioapatite enamel of wild and domestic populations"

Cap carbonate (658 words) [view diff] exact match in snippet view article find links to article

progression of late Neoproterozoic glaciations portrayed by substantial δ13C deviations in cap carbonates suggest out of control ice albedo. Experiments

Fiji Museum (1,008 words) [view diff] exact match in snippet view article find links to article

material from the archaeological collection was used for stable isotopic (δ13C, δ15N) analysis of bone collagen in order to identify the "percent contribution

History of cheese (2,403 words) [view diff] exact match in snippet view article find links to article

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

Maerl (1,538 words) [view diff] exact match in snippet view article find links to article

(2006) "Community structure and food web based on stable isotopes (δ15N and δ13C) analysis of a North Eastern Atlantic maerl bed". Journal of Experimental

Seaweed (3,928 words) [view diff] exact match in snippet view article find links to article

on macroalgal (Laminaria solidungula) carbon in an arctic kelp community: δ13C evidence". Marine Biology. 93 (4): 615–625. Bibcode:1987MarBi..93..615D.

Dusicyon avus (1,126 words) [view diff] exact match in snippet view article find links to article

Its diet seems to have been more carnivorous than extant foxes based on δ13C and δ15N values, probably mostly preying on small mammals but also scavenging

Diamond (14,961 words) [view diff] exact match in snippet view article find links to article

photosynthesis. The fraction is generally compared to a standard sample using a ratio δ13C expressed in parts per thousand. Common rocks from the mantle such as basalts

San Cassiano Formation (1,110 words) [view diff] exact match in snippet view article find links to article

Lopez‐Esquivel, L. (2011). Análisis geoquímico (elementos mayores, menores, traza, δ13C, δ18O y tierras raras) de microbialitas selectas provenientes de la Formación

Mbari River (644 words) [view diff] exact match in snippet view article find links to article

landscape history and palaeohydrology evidenced by stable carbon isotope (δ13C) analysis of alluvial sediments in the Mbari valley (5°N/23°E), Central African

Australopithecus bahrelghazali (2,083 words) [view diff] exact match in snippet view article find links to article

primates (including savanna chimps) avoid C4 foods. However, despite 55–80% of δ13C deriving from C4 sources similar to Paranthropus boisei and the modern gelada

Kubu Island (351 words) [view diff] exact match in snippet view article find links to article

DENDROCHRONOLOGICAL MULTIPARAMETER STUDY USING RING WIDTH AND STABLE ISOTOPES (δ13C, δ18O)". Erdkunde. 71 (1): 23–43. ISSN 0014-0015. JSTOR 44280264. "Kubu Island

Sulfate (4,496 words) [view diff] exact match in snippet view article find links to article

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

Carbon-to-nitrogen ratio (2,254 words) [view diff] exact match in snippet view article find links to article

physical variations, D/H isotopic analyses of fatty acids and alkanes, and δ13C analyses on similar biomarkers can lead to further regional climate interpretations

Ediacaran (3,563 words) [view diff] exact match in snippet view article find links to article

J. L.; Fanning, C. M. (2006). "50 Myr recovery from the largest negative δ13C excursion in the Ediacaran ocean". Terra Nova. 18 (2): 147–153. Bibcode:2006TeNov

Paja Formation (5,097 words) [view diff] exact match in snippet view article find links to article

black shales of the Paja Formation. The formation contains three spikes of δ13C, with values above 1.5‰, in the lower, middle to upper and upper Paja Formation

Arctotherium (5,231 words) [view diff] exact match in snippet view article find links to article

Franciely; Cravo, Elisa; Ximenes, Celso (2021-06-07). "Isotopic palaeoecology (δ13C) of three faunivores from Late Pleistocene of the Brazilian intertropical

Cheese (7,010 words) [view diff] exact match in snippet view article find links to article

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

Geologic temperature record (2,096 words) [view diff] exact match in snippet view article find links to article

1126/science.1230492. PMID 23393261. S2CID 6112274. Veizer, J. (1999). "87Sr/86Sr, δ13C and δ18O evolution of Phanerozoic seawater". Chemical Geology. 161 (1–3):

Resilience of coral reefs (2,587 words) [view diff] exact match in snippet view article find links to article

Grottoli, Andréa G. (2002-06-01). "Effect of light and brine shrimp on skeletal δ13C in the Hawaiian coral Porites compressa: a tank experiment". Geochimica et

Jan Veizer (1,051 words) [view diff] exact match in snippet view article find links to article

Christoph; Pawellek, Frank; Podlaha, Olaf G.; Strauss, Harald (1999). "87Sr/86Sr, δ13C and δ18O evolution of Phanerozoic seawater". Chemical Geology. 161 (1–3)

Hydrogen isotope biogeochemistry (30,829 words) [view diff] exact match in snippet view article find links to article

together with other geochemical tools(like δ13C, gas wetness) to categorize and identify natural gas. A δD-δ13C diagram (sometimes called CD diagram, Whiticar

Jan Veizer (1,051 words) [view diff] exact match in snippet view article find links to article

Christoph; Pawellek, Frank; Podlaha, Olaf G.; Strauss, Harald (1999). "87Sr/86Sr, δ13C and δ18O evolution of Phanerozoic seawater". Chemical Geology. 161 (1–3)

Enhydriodon (8,754 words) [view diff] exact match in snippet view article find links to article

carbon stable isotopes, a diet of pure oysters would result in an enamel δ13C value of −11.3%. The diet of E. omoensis, however, was not based purely on

Notiomastodon (11,287 words) [view diff] exact match in snippet view article find links to article

Intertropical Region: isotopic diet (δ13C), niche differentiation, guilds and paleoenvironmental reconstruction (δ13C, δ18O)". Historical Biology. 33 (10):

Burgsvik Beds (2,064 words) [view diff] exact match in snippet view article find links to article

climate, mainly precipitation, controlling the distribution of facies; high δ13C is often observed in deposits formed in arid conditions. Calner (2005) notes

Arctic methane emissions (4,126 words) [view diff] exact match in snippet view article find links to article

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

Nchwaning mine (566 words) [view diff] exact match in snippet view article find links to article

manganese ore field (Northern Cape, South Africa): Geochemistry of isotopes (δ13C and δ18O) and genesis". Lithology and Mineral Resources. 47 (3): 217–233

Northern fur seal (2,742 words) [view diff] exact match in snippet view article find links to article

evidence from stable isotope analysis of Holocene fur seal bone collagen (δ13C and δ15N) indicates that before the maritime fur trade, it was more common

Magnesite (3,919 words) [view diff] exact match in snippet view article find links to article

"SIMS Bias on Isotope Ratios in Ca-Mg-Fe Carbonates (Part III): δ18O and δ13C Matrix Effects Along the Magnesite-Siderite Solid-Solution Series". Geostandards

Volcanic winter (5,037 words) [view diff] exact match in snippet view article find links to article

; Asmerom, Yemane; Lachniet, Matthew S. (2017-09-01). "Rapid speleothem δ13C change in southwestern North America coincident with Greenland stadial 20

Deglaciation (2,979 words) [view diff] exact match in snippet view article find links to article

the Southern Ocean. These Southern Ocean deep waters contained the least δ13C, which consequently resulted in them being the location with the greatest

Beringia (5,924 words) [view diff] exact match in snippet view article find links to article

S2CID 88740690. Szpak, Paul; et al. (2010). "Regional differences in bone collagen δ13C and δ15N of Pleistocene mammoths: Implications for paleoecology of the mammoth

Adélie penguin (4,969 words) [view diff] exact match in snippet view article find links to article

Diversity Web. S.D. Emslie; W.P. Patterson (July 2007). "Abrupt recent shift in δ13C and δ15N values in Adélie penguin eggshell in Antarctica". Proceedings of

Ordovician (7,118 words) [view diff] exact match in snippet view article find links to article

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

Topolnița Cave (981 words) [view diff] exact match in snippet view article find links to article

Angelica; Tanțău, Ioan; Forray, Ferenc L. (2019-06-01). "Pollen, δ15N and δ13C guano-derived record of late Holocene vegetation and climate in the southern

Martin Schoell (1,413 words) [view diff] exact match in snippet view article find links to article

recognizing the difference in δ13C and δD fractionation of the water environments and observing the differences in δ13C and δD fractionations of the methane

Soil contamination (4,792 words) [view diff] exact match in snippet view article find links to article

nitrogen cycling in a lead polluted grassland evaluated using stable isotopes (δ13C and δ15N) and microbial, plant and soil parameters". Plant and Soil. 449

Soil carbon (4,230 words) [view diff] exact match in snippet view article find links to article

carbon in soil compared with conventional amendments using stable isotope (δ13C) approach". GCB Bioenergy. 9 (6): 1085–1099. doi:10.1111/gcbb.12401. Lal

Toba catastrophe theory (7,333 words) [view diff] exact match in snippet view article find links to article

; Asmerom, Yemane; Lachniet, Matthew S. (2017-09-01). "Rapid speleothem δ13C change in southwestern North America coincident with Greenland stadial 20

Water-use efficiency (1,061 words) [view diff] exact match in snippet view article find links to article

"Direct and indirect selection on flowering time, water-use efficiency (WUE, δ13C), and WUE plasticity to drought in Arabidopsis thaliana". Ecology and Evolution

Common bottlenose dolphin (4,837 words) [view diff] exact match in snippet view article find links to article

bottlenose dolphins, mass-balance isotopic mixing model (MixSIAR), using δ13C and δ15N shows that Sparidae species; seabreams (Diplodus annularis and D

Sulfur dioxide (7,310 words) [view diff] exact match in snippet view article find links to article

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

Judith Sealy (700 words) [view diff] exact match in snippet view article find links to article

marine dietary indicator utilizing compound-specific bone collagen amino acid δ13C values of ancient humans". Journal of Archaeological Science 32:321–330.

Last Glacial Maximum (7,886 words) [view diff] exact match in snippet view article find links to article

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

Curviacus (338 words) [view diff] exact match in snippet view article find links to article

1017/S001675681700036X. S2CID 131980880. Zhou, Chuanming; Xiao, Shuhai (2006). "Ediacaran .δ13C chemostratigraphy of South China". Chemical Geology. 237 (1–2): 89–108. doi:10

Tunguska event (8,888 words) [view diff] exact match in snippet view article find links to article

pre-1908 portion of the core. These results, including organic C, N and δ13C data, suggest that Lake Cheko formed at the time of the Tunguska event. Pollen

Paleoethnobotany (6,232 words) [view diff] exact match in snippet view article find links to article

"Farming Practice and Land Management at Knossos, Crete: New Insights from δ13C and δ15N Analysis of Neolithic and Bronze Age Crop Remains". In Garcia, D

Mangrove (10,782 words) [view diff] exact match in snippet view article find links to article

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

Eocene (11,044 words) [view diff] exact match in snippet view article find links to article

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

Geologic time scale (9,469 words) [view diff] exact match in snippet view article find links to article

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

Getty kouros (2,018 words) [view diff] exact match in snippet view article find links to article

X-ray diffraction. His isotopic analysis revealed that δ18O = -2.37 and δ13C = +2.88, which from database comparison admitted one of five possible sources:

Godavari River (6,987 words) [view diff] exact match in snippet view article find links to article

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

Polycyclic aromatic hydrocarbon (8,856 words) [view diff] exact match in snippet view article find links to article

pyrosynthetic polycyclic aromatic hydrocarbons associated with an abrupt decrease in δ13C of a terrestrial biomarker at the Cretaceous-Tertiary boundary at Caravaca

Lactose intolerance (7,146 words) [view diff] exact match in snippet view article find links to article

E, Moore AM, Harper TK, Culleton BJ, et al. (2018). "Fatty acid specific δ13C values reveal earliest Mediterranean cheese production 7,200 years ago".

8.2-kiloyear event (4,198 words) [view diff] exact match in snippet view article find links to article

waters off Cape Hatteras experienced a major salinity increase. Bat guano δ13C and δD values in the Grand Canyon declined. Southwestern Mexico became significantly

List of flood basalt provinces (3,225 words) [view diff] exact match in snippet view article find links to article

Subsequent to the first extinctions, excursions in the δ13C and δ18O records are observed; δ13C rises from +1.4‰ to +4.5‰, while δ18O increases from −5

Marta Torres (963 words) [view diff] exact match in snippet view article find links to article

Angelis, M. A. (2003-07-24). "Is methane venting at the seafloor recorded by δ13C of benthic foraminifera shells?". Paleoceanography. 18 (3): n/a. Bibcode:2003PalOc

Saguenay–St. Lawrence Marine Park (4,296 words) [view diff] exact match in snippet view article find links to article

Calanus sp. in the Saguenay‑St. Lawrence Marine Park (Québec, Canada) using δ13C as a marker". Marine Ecology Progress Series. 499: 89–102. doi:10.3354/meps10651

Panaque armbrusteri (323 words) [view diff] exact match in snippet view article find links to article

(2007). "Dietary histories of herbivorous loricariid catfishes: evidence from δ13C values of otoliths". Environmental Biology of Fishes. 78 (1): 13–21. doi:10

Carbon cycle (10,174 words) [view diff] exact match in snippet view article find links to article

in soil compared with conventional amendments using the stable isotope (δ13C) approach". GCB Bioenergy. 9 (6): 1085–1099. doi:10.1111/gcbb.12401. Lal

Saguenay–St. Lawrence Marine Park (4,296 words) [view diff] exact match in snippet view article find links to article

Calanus sp. in the Saguenay‑St. Lawrence Marine Park (Québec, Canada) using δ13C as a marker". Marine Ecology Progress Series. 499: 89–102. doi:10.3354/meps10651

Vardebukta Formation (605 words) [view diff] exact match in snippet view article find links to article

Triassic of Spitsbergen, with comments on their stable isotope composition (δ13C and δ18O) and X−ray microtomography" (PDF). Polish Polar Research. 34 (1):

Melanie Leng (865 words) [view diff] exact match in snippet view article find links to article

review of coastal palaeoclimate and relative sea-level reconstructions using δ13C and C/N ratios in organic material". Earth-Science Reviews. 75 (1–4): 29–57

Smilodon (11,538 words) [view diff] exact match in snippet view article find links to article

Alcides Nóbrega; Bocherens, Hervé (2020-07-14). "Isotopic paleoecology (δ13C, δ18O) of a late Pleistocene vertebrate community from the Brazilian Intertropical

River Thames (14,776 words) [view diff] exact match in snippet view article find links to article

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

Mangrove forest (10,390 words) [view diff] exact match in snippet view article find links to article

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

Mosasauroidea (269 words) [view diff] exact match in snippet view article find links to article

Jacobs, L.L.; Ferguson, K.; Polcyn, M.J.; Rennison, C. (2005). "Cretaceous δ13C stratigraphy and the age of dolichosaurs and early mosasaurs" (PDF). Netherlands

Western Interior Seaway anoxia (1,607 words) [view diff] exact match in snippet view article find links to article

, Berner, Z., Adatte, T., and Stueben, D. 2004. Cenomanian-Turonian and δ13C, and δ18O, sea level and salinity variations at Pueblo, Colorado. Palaeogeography

Termite (20,136 words) [view diff] exact match in snippet view article find links to article

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

Blue cod (4,723 words) [view diff] exact match in snippet view article find links to article

blue cod Parapercis Colias in Doubtful Sound, New Zealand, inferred from δ13C and δ15N". Marine Ecology Progress Series. 359: 239–248. Bibcode:2008MEPS

Biochar (10,024 words) [view diff] exact match in snippet view article find links to article

carbon in soil compared with conventional amendments using stable isotope (δ13C) approach". Global Change Biology Bioenergy. 9 (6): 1085–1099. doi:10.1111/gcbb

Bienertia cycloptera (1,057 words) [view diff] exact match in snippet view article find links to article

the single-cell system of C4 photosynthesis exhibit a seasonal pattern of δ13C values in nature similar to co-existing C4 Chenopodiaceae having the dual-cell

Heinrich event (4,067 words) [view diff] exact match in snippet view article find links to article

caused by burrowing animals Flux in planktonic isotopic make-up (changes in δ13C, decreased δ18O) Pollen indications of cold-loving pines replacing oaks on

Amphetamine (26,889 words) [view diff] exact match in snippet view article find links to article

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"

Abiogenic petroleum origin (7,714 words) [view diff] exact match in snippet view article find links to article

light isotopes in all chemical reactions, whether organic or inorganic. δ13C of methane overlaps that of inorganic carbonate and graphite in the crust

Carbon sequestration (14,584 words) [view diff] exact match in snippet view article find links to article

carbon in soil compared with conventional amendments using stable isotope (δ13C) approach". GCB Bioenergy. 9 (6): 1085–1099. doi:10.1111/gcbb.12401. Wardle

Edmontosaurus regalis (3,369 words) [view diff] exact match in snippet view article find links to article

Stanton Thomas, Kathryn J.; Carlson, Sandra J. (2004). "Microscale δ18O and δ13C isotopic analysis of an ontogenetic series of the hadrosaurid dinosaur Edmontosaurus:

Isorenieratene (1,803 words) [view diff] exact match in snippet view article find links to article

in carbon-13 (13C) compared to other algal biomass by about 15 per mil. δ13C of green sulfur bacteria biomass ranges between –9 and –21 per mil. Isorenieratene

Global dimming (9,603 words) [view diff] exact match in snippet view article find links to article

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

Late Devonian extinction (8,630 words) [view diff] exact match in snippet view article find links to article

"Water column anoxia, enhanced productivity and concomitant changes in δ13C and δ34S across the Frasnian–Famennian boundary (Kowala — Holy Cross Mountains/Poland)"

Paleocene (17,307 words) [view diff] exact match in snippet view article find links to article

GSSP ratified 1991 Upper boundary definition Strong negative anomaly in δ13C values at the PETM Upper boundary GSSP Dababiya section, Luxor, Egypt 25°30′00″N

Woolly mammoth (18,331 words) [view diff] exact match in snippet view article find links to article

Patterson, W. P.; Poinar, H. N. (2010). "Regional differences in bone collagen δ13C and δ15N of Pleistocene mammoths: Implications for paleoecology of the mammoth

Biodilution (674 words) [view diff] exact match in snippet view article find links to article

alkylphenols, and polychlorinated biphenyls in Tokyo Bay eludcidated by δ13C and δ15N isotope ratios as guides to tropic web structure". Marine Pollution

Mastodon (18,593 words) [view diff] exact match in snippet view article find links to article

Based on carbon isotopic analyses of mastodons in Florida, they had low δ13C values which indicate C3 browsing specialization. The dietary preferences

Sharon Robinson (physiologist) (2,143 words) [view diff] exact match in snippet view article

Wanek, Wolfgang; French, Kristine; Robinson, Sharon A. (1 June 2015). "Moss δ13C: an accurate proxy for past water environments in polar regions". Global

Near Eastern bioarchaeology (5,784 words) [view diff] exact match in snippet view article find links to article

Zahra Afshara and a team of scientists from Durham University analyzed δ13C and δ15N in human bone collagen from 69 male and female adult skeletons from

Edmontosaurus (11,729 words) [view diff] exact match in snippet view article find links to article

Stanton Thomas, Kathryn J.; Carlson, Sandra J. (2004). "Microscale δ18O and δ13C isotopic analysis of an ontogenetic series of the hadrosaurid dinosaur Edmontosaurus:

Eremotherium (7,041 words) [view diff] exact match in snippet view article find links to article

Pleistocene megamammals from the Brazilian Intertropical Region: Feeding ecology (δ13C), niche breadth and overlap". Quaternary Science Reviews. 170: 152–163. doi:10

Peloneustes (8,363 words) [view diff] exact match in snippet view article find links to article

Johnson, A. L. A.; Nunn, E.V.; Schöne, B. R. (2014). "Stable isotope (δ18O and δ13C) sclerochronology of Callovian (Middle Jurassic) bivalves (Gryphaea (Bilobissa)

Glyptodon (12,942 words) [view diff] exact match in snippet view article find links to article

Alexander; Dantas, Mário André Trindade (2021-12-01). "Isotopic paleoecology (δ13C, δ18O) of two megamammals assemblages from the late pleistocene of Brazilian

Isotopic analysis by nuclear magnetic resonance (2,130 words) [view diff] exact match in snippet view article find links to article

IRMS is the official AOAC technique used for the average ratio 13C/12C (or δ13C) of sugars or ethanol, and the official CEN and OIV method for the 18O/16O

Lake Cahuilla (9,519 words) [view diff] exact match in snippet view article find links to article

changes in Salton Basin, California, during the past 20 kyr: 1. δ18O and δ13C records in lake tufa deposits". Palaeogeography, Palaeoclimatology, Palaeoecology

Cenococcum geophilum (1,925 words) [view diff] exact match in snippet view article find links to article

T., Sakagami, N., Maejima, Y., ... & Hiradate, S. (2007). 14C ages and δ13C of sclerotium grains found in forest soils. Soil Science and Plant Nutrition

African humid period (43,079 words) [view diff] exact match in snippet view article find links to article

and its impact on vegetation in the Central Himalaya: Insight from δD and δ13C values of leaf wax lipid". The Holocene. 30 (7): 1070. Bibcode:2020Holoc

Euxinia (6,621 words) [view diff] exact match in snippet view article find links to article

sulphate, the rise of atmospheric oxygen and local amplification of the δ13C excursion". Terra Nova. 17 (2): 141–148. Bibcode:2005TeNov..17..141M. doi:10

Sulfate-methane transition zone (2,380 words) [view diff] exact match in snippet view article find links to article

depleted than bacteria. The dissolved inorganic carbon (DIC) stable isotopes (δ13C) also show depleted signals due to the DIC being sourced from methane oxidation

2019 in paleomammalogy (34,195 words) [view diff] exact match in snippet view article find links to article

van Kolfschoten; A.N. Tikhonov; J. van der Plicht (2019). "Woolly mammoth δ13C and δ15N values remained amazingly stable throughout the last ~50,000 years

John L. Koprowski (2,655 words) [view diff] exact match in snippet view article find links to article

J.L. Koprowski, J.L. Polfus, P.R. Krausman. 2015.Experimentally derived δ13C and δ15N discrimination factors for gray wolves, and the impact of prior

Giants of Mont'e Prama (17,098 words) [view diff] exact match in snippet view article find links to article

the extreme reliability of the material, it should be emphasized that the δ13C measured at the University of Groningen was found to be identical in two

Hyperthermal event (1,648 words) [view diff] exact match in snippet view article find links to article

CO 2 capture through greater silicate weathering on the continents. The δ13C ratios of the carbon isotope contents of the carbonates constituting the

Lepidosaur herbivory (3,217 words) [view diff] exact match in snippet view article find links to article

of the monitor lizard Varanus mabitang by stable isotope analyses (δ15N, δ13C). Naturwissenschaften 89:470–473. Gaulke, M. 2004. Varanus mabitang; pp.

Hammerschmiede clay pit (4,026 words) [view diff] exact match in snippet view article find links to article

of yet unpublished stable isotope analysis, which showcases the enriched δ13C values of a C3 vegetation under very strong water stress. The large number

Magma supply rate (2,404 words) [view diff] exact match in snippet view article find links to article

Giammanco, S.; Parello, F.; Valenza, M. (1 April 1997). "CO2 output and δ13C(CO2) from Mount Etna as indicators of degassing of shallow asthenosphere"

2020 in paleontology (23,459 words) [view diff] exact match in snippet view article find links to article

Christophe Lécuyer; Bruce S. Rubidge (2020). "Stable isotopes (δ18O and δ13C) give new perspective on the ecology and diet of Endothiodon bathystoma (Therapsida

Position-specific isotope analysis (4,364 words) [view diff] exact match in snippet view article find links to article

The authors demonstrated an enriched carboxyl site relative to the bulk δ13C of the molecules, which they attribute to uptake of heavier CO2 through the

2022 in paleomalacology (6,890 words) [view diff] exact match in snippet view article find links to article

O. P.; Kirienko, A. P.; Grigorev, V. E. (2022). "A 87Sr/86Sr, δ18O and δ13C record of Turonian-Santonian belemnites from Lower Volga region of the East

2022 in paleomammalogy (34,452 words) [view diff] exact match in snippet view article find links to article

the Pleistocene of southern Brazil: insights from stable isotope analysis (δ13C, δ18O)". Paleobiology. 48 (3): 513–526. Bibcode:2022Pbio...48..513C. doi:10

2021 in paleontology (27,996 words) [view diff] exact match in snippet view article find links to article

Barr, A.; Sponheimer, M. (2021). "Intrataxonomic trends in herbivore enamel δ13C are decoupled from ecosystem woody cover". Nature Ecology & Evolution. 5

2019 in paleomalacology (9,569 words) [view diff] exact match in snippet view article find links to article

Nicholas M. Ellis; Thomas S. Tobin (2019). "Evidence for seasonal variation in δ13C and δ18O profiles of Baculites and implications for growth rate". Palaeontology

Micronekton (6,228 words) [view diff] exact match in snippet view article find links to article

Tanabe, Shinsuke (2010-09-01). "Trace elements and stable isotope ratios (δ13C and δ15N) in fish from deep-waters of the Sulu Sea and the Celebes Sea".

2021 in paleomammalogy (39,075 words) [view diff] exact match in snippet view article find links to article

; Santos, F. S.; Cravo, E.; Ximenes, C. (2021). "Isotopic palaeoecology (δ13C) of three faunivores from Late Pleistocene of the Brazilian intertropical

Global Paleoclimate Indicators (3,567 words) [view diff] exact match in snippet view article find links to article

Pehlivanli, Berna; Koç, Şükrü; Sari, Ali (November 2014). "Carbon isotope (δ13C) characteristics of middle Miocene Çayirhan oil shales (Beypazari, Ankara/Turkey):

2018 in paleomammalogy (43,812 words) [view diff] exact match in snippet view article find links to article

cave bears from the Romanian Carpathians: insights from stable isotope (δ13C and δ15N) analysis". Palaeontology. 61 (2): 209–219. Bibcode:2018Palgy..61

2023 in paleomammalogy (35,097 words) [view diff] exact match in snippet view article find links to article

T. F.; Cherkinsky, A.; Dantas, M. A. T. (2023). "Annual isotopic diet (δ13C, δ18O) of Notiomastodon platensis in the Brazilian Intertropical region during

Early Ordovician (4,037 words) [view diff] exact match in snippet view article find links to article

Ordovician System and its relations to major regional series and stages and to δ13C chemostratigraphy". Lethaia. 42 (1): 97–107. Bibcode:2009Letha..42...97B

Organic residue analysis (7,614 words) [view diff] no match in snippet view article find links to article

making this type of analysis then a compound-specific one. By plotting the 𝛿13C values of C16:0 against C18:0 in modern references and archaeological samples

Rock hyrax midden (7,147 words) [view diff] exact match in snippet view article find links to article

modern rainfall seasonality has a strong impact on C3/C4 grass distributions. δ13C records can also be used in some ecoregions, such as the dry savannah at

"Pliosaurus" andrewsi (3,897 words) [view diff] exact match in snippet view article find links to article

A. Johnson; E. V. Nunn; B. R. Schöne (2014). "Stable isotope (δ18O and δ13C) sclerochronology of Callovian (Middle Jurassic) bivalves (Gryphaea (Bilobissa)

2024 in paleomammalogy (18,031 words) [view diff] exact match in snippet view article find links to article

T.; Oliveira, É. V. (2024). "Tracking the Past: Isotopic Paleoecology (δ13C, δ18O) of the Late Pleistocene megafauna from northeast of South America"