Journal ArticleDOI
Isotopic standards for carbon and oxygen and correction factors for mass-spectrometric analysis of carbon dioxide
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TLDR
In this paper, Niee's and Solenhofen standards were compared to the Chicago PDB standard for carbon and oxygen isotope ratios, and the correction factors for instrumental effects and for the nature of the mass spectra were derived.About:
This article is published in Geochimica et Cosmochimica Acta.The article was published on 1957-01-01. It has received 4071 citations till now. The article focuses on the topics: Carbon & Carbon dioxide.read more
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Book ChapterDOI
The Alteration and Aging of the Basaltic Layer of Sea Floor: Oxygen Isotope Evidence from DSDP/IPOD Legs 51, 52, and 53
TL;DR: The δ 1 8 θ values of 108 basaltic samples from Holes 417A, 417D, and 418A range from 6.0 to 26.4%o.y as discussed by the authors.
Journal ArticleDOI
Middle Pleistocene Climate Change Recorded in Fossil Mammal Teeth from Tarija, Bolivia, and Upper Limit of the Ensenadan Land-Mammal Age
TL;DR: In this paper, carbon isotopic data reported for 50 specimens of the grazing mammals Equus (horse) and Cuvieronius (mastodon), documented from eight stratigraphic levels at Tarija, vary significantly in the δ13C values of their teeth.
Journal ArticleDOI
Variations of the carbon and oxygen isotopic composition in stalagmites and stalactites: Evidence of non-equilibrium isotopic fractionation
J. Fantidis,D.H. Ehhalt +1 more
TL;DR: The variations of the oxygen-18 and carbon-13 content along homogeneous layers of stalagmites and stalactites were studied in this article, showing an increase, in one case a decrease, in the direction of water flow.
Journal ArticleDOI
Changing Cultures, Changing Cuisines: Cultural Transitions and Dietary Change in Iron Age, Roman, and Early Medieval Croatia
TL;DR: It is shown that in Croatia large-scale cultural change led to significant changes in diet, through stable carbon and nitrogen isotope analysis of Iron Age, Roman, and Early Medieval human bone collagen.
Journal ArticleDOI
Food resources of postlarval brown shrimp ( Penaeus aztecus ) in a Texas salt marsh
TL;DR: Results indicate that plankton may be an important allochthonous source of carbon contributing to the growth and development of shrimp in the salt marsh.
References
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Journal ArticleDOI
On the Isotopic Chemistry of Carbonates and a Paleotemperature Scale
TL;DR: In this paper, the temperature variation of the fractionation of oxygen in exchange reactions between dissolved carbonate and water and between calcite and water was calculated on theoretical grounds, and checked experimentally.
Journal ArticleDOI
Variation of O18 content of waters from natural sources
S Epstein,Toshiko K. Mayeda +1 more
TL;DR: A number of marine water and fresh water samples were examined for the relative O18O16 ratio, and the variation of this ratio was determined to a precision of ± 1% as mentioned in this paper.
Journal ArticleDOI
Revised carbonate-water isotopic temperature scale
TL;DR: The relationship between temperature and O(18) content relative to that for a Cretaceous belemnite of the Pee Dee formation previously reported (Epstein, Buchsbaum, Lowenstam, and Urey, 1951) has been re-determined using modified procedures for removing organic matter from shells, and is found to be 16.5 - 4.3 δ + 0.14 δ^2
Journal ArticleDOI
The geochemistry of the stable carbon isotopes
TL;DR: A survey of the variation of the ratio C13/C12 in nature can be found in this paper, where Urey and his co-workers used two complete feed systems with magnetic switching to determine small differences in isotope ratios between samples and a standard gas.